Products for well construction Groundwater monitoring Dewatering
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Requirements for well completion products, standards
Contents Page 2 Requirements for well completion products, standards Page 3 Chemical and physical properties, tensile strength, threads Page Compressive strength
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Page 5 Screen permeability and transmissivity Page 6/8 Screens and casing made of uPVC: K, KV, KK series Special K series pipes Multi Level System Page Dewatering Steel and plastic pipes
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Page NORESTA®
10/11
Page NORIP ®
12/13
Page 14 PVC wire wrapped screens Fiberglass Systems - reinforced pipe systems Page Stainless steel wire wrapped screens PEHD screens and casings
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Page 16 – 18 Accessories and installation tools Meshes Well sealing caps and fittings Page Abyssinian well screens Deep suction screens
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Page How to get in touch
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Well completion products set a high bar in terms of quality. They must be designed to meet the specialised requirements of the well construction field and at the same time have excellent levels of cost-benefit. The properties of u-PVC material make it ideal for these applications. It is entirely non-corrosive, easy to work and form, and is both lightweight and sufficiently tough. This high degree of cost effectiveness comes not least from the near-unlimited service life of this material. The use of matched completion components results in time savings during installation. A complete range of accessory products and specially developed installation tools help avoid complications and expensive delays when installing these products. Pumpenboese-SBF-Hagusta manufactures screens and casings for well completion in accordance with set standards and regulations. Furthermore, the company's certification according to DIN EN ISO 9001:2000 is a testament to pumpenboese-SBFHagusta's long-standing quality control procedures at all stages of production, thus ensuring the excellent quality of the products supplied. Quality control starts with the choice of suppliers for the raw materials and additives, whereby the selection criteria are highly rigorous. We put special emphasis on this, as bulk resin or components of unknown origin or composition do not conform to present standards. The quality aspect continues right through our extensive checking of material characteristics: elastic modulus, Charpy impact strength, density, tensile strength, impact resistance and Vicat softening point.
Standards The sizes in our product range strictly conform to prevailing standards, guidelines and regulations as well as technical recommendations (DIN, EN, ISO, DVGW, KTW, WHG, etc.). The material properties of the raw materials, the semi-finished goods as well as the final products are continuously controlled with regard to the defined values as stated in the guidelines. If required, we will be happy to provide you with the material certificate “2.1” according to DIN EN ISO 10204. These 'hidden' qualities and features should have a great deal of bearing when it comes to phrasing project tenders and carrying out cost comparisons.
Chemical and physical properties, tensile strength, threads
Chemical properties The chemical resistance of the products is exceptionally high. Pipes made of u-PVC demonstrate long-term resistance to groundwaters of all kinds, seawater, brines, and even diluted acidic and alkaline solutions. Even repeated treatment with regenerants and disinfectants does not affect these well completion products. All our products conform to relevant hygiene regulations and we would be most happy to provide you with certificates from renowned laboratories and institutes that confirm their compliance.
Physical properties It is only possible to meet the expectations of users and clients if compressive strength, thread load capacity, pipe dimensions and the free open entry area of the screens complying fully with the set standards. The testing of physical properties and the checking of compliance with current guidelines are both conducted at our own on-site laboratory. The technical data of our well products' physical properties are displayed in the table below.
Physical material properties Properties N/mm2
2500 to 3000
Charpy impact strength at 20 °C for u-PVC; normal toughness approx.
kJ/m2
3 to 5
Density approx.
g/cm3
1,4
Tensile strength approx.
N/mm2
45 to 55
Elastic modulus approx.
Impact resistance Vicat softening temperature approx.
°C
Method of testing DIN EN ISO 178 DIN EN ISO 179 DIN 53479 DIN EN ISO 527-2
max. 10% breakage
Following DIN EN ISO 179
80
DIN EN ISO 306
Tensile strength The tensile strength required can be easily determined by the pipe weight. The only thing that has to be considered as well, is the additional force during gravel packing, when this gets spotted at the thread boxes and during its settlement phase. Another factor is that the slotted screens have a reduced tensile strength in respect to the casings. This could be of importance in deep wells with more than one screen section (please refer to tables on pages 6 – 8). This is why general statements cannot be made about how deep u-PVC casings can be installed. It is recommended that the expected tensile requirements for each individual well completion should be evaluated prior to each project. Here, it is also important to note that any depth data provided for any of our u-PVC products on the following pages is purely for orientation purposes. Threads R = Whitworth pipe thread, DIN 4925 T = Trapezoidal thread, DIN 4925 TNA = Trapezoidal thread, non upset
R = Whitworth pipe thread, according to DIN 4925 Part 1, with reference to DIN 2999 Part 1, cylindrical thread on box and taper pipe thread on pin; pitch: 11 threads per inch, DN 35 to DN 100
T = Trapezoidal thread, according to DIN 4925 Parts 2 and 3, pitch 6 mm: DN 100 to DN 200; pitch 12 mm: DN 250 to DN 400; DN 500 and DN 600 according to company standard. Special seal ring available.
TNA = Trapezoidal thread, non upset, according to company standard. Thread cut into the wall; thread diameter and pitch according to company standard, pipes in DN 150 to DN 600 in the K series; pipes in DN 100 to DN 400 in the KV series. 3
Compressive strength
Compressive strength In order to determine the maximum permissible installation depth of the used well pipes, it is not only necessary to know the tensile strength of the joints, but also the compressive strength. The compressive strain on the joints, experienced under field conditions, is dependent on numerous, in some cases not exactly definable, factors. During installation of the completion material, during gravel packing, during sealing of the annulus or when pumping (due to big differences in the static water level) the strains on the material are at a maximum and the consequences are not always predictable. Especially during spotting of the annular space, the forces experienced can exceed those of the hydrostatic pressure distribution. A further strain on the material is caused when passing through clayey strata, as the pipes will be exposed to additional compressive forces by the swelling clays. This can happen at any depth, and in extreme cases, may cause considerable strain on all materials near the surface.
a mean elastic modulus of 2750 N/mm2. Taking the above mentioned uncertainties into consideration, the user can be assured that, with these safety measures, there is sufficient margin when evaluating safe permissible installation depths. Assistance in choosing the pipe series to be used can be obtained from the nomogram below. Here, the compressive force, as experienced by the casing (calculated with conventional gravel pack in relation to the water level of the drilled aquifer), was set against the compressive strengths of the different well completion series.
Note: The nomogram is not a substitute for project-specific static load calculations.
The permissible installation depths of these three series (K = standard wall thickness, KV = thick walled, KVV = extra thick walled) can be taken from the nomogram. These permissible casing installation depths can be further deepened by up to 30% by using screens. Screens should be chosen from the same material series as the casings.
All values stated in the tables of this brochure were determined with respect to the minimum wall thickness of the pipes and
Permissible installation depth [m]
Permissible installation depths for u-PVC casings
K series
KV series
KVV series
Water level below ground level [m] 4
Screen permeability and transmissivity
Screen permeability and transmissivity The possible production capacity of a well is in general the result of the following parameters: • Permeability, transmissivity and yield of the aquifer, • Permeability and transmissivity of the gravel pack,
area of the screens in comparison to the freely available pore space of the gravel pack. Today, more emphasis is placed on the permeability and transmissivity of the screens and gravel pack. In field conditions, the freely available pore space of a gravel pack in its densest packing amounts to approximately 4.5%. This is due to the fact that the grains are not perfectly spherical.
In past decades, the only aspect of interest had been the free open entry
The free open entry area of almost all pb-SBF-Hagusta well screens represents a much larger percentage than this. Exploitable aquifers generally have permeabilities (kf values) of 10-7 m/s to 10-3 m/s. As soon as the groundwater reaches the gravel pack these permeabilities increase to values between 10-4 m/s and 10-2 m/s. Extensive research conducted with SBF screens as early as in the 1970s by the Institute for Radiohydrometry (GSF) determined the permeabilities of the screens to be in the range of 10-3 m/s to 10-2 m/s. The in-situ grain size distribution of the aquifer formation poses the main hindrance and this results in the largest losses of flow in this whole system. As soon as the groundwaters reach the annulus of the well bore, it more or less enters the screen without any restriction at all.
Permeability of well screens DN 35 to DN 200 (slot width: 0.2 mm to 0.3 mm)
Permeability of well screens DN 200 to DN 600 (slot width: 0.75 mm to 3.0 mm)
• Permeability and transmissivity of the screen, • Entrance velocity of the water at the screen when produced.
The broad spectrum of available screen slot widths warrant an optimal adaptation to the chosen gravel pack grain size distribution.
Permeability per m K screen [m3/h] at entry velocity = 3 cm/s
Permeability per m K screen [m3/h] at entry velocity = 3 cm/s
When determining the proper screen dimensions, the assumption is made that the mean entrance velocity of the produced water will amount to 3.0 cm/s, presupposing the yield of the aquifer will be sufficiently high. This value avoids scale formation tendencies and thus possible reductions in the service life of the well. It also averts the danger of possible sand production (refer to relevant literature).
Both the traditional aspect (free open entry area) and the modern permeability aspect speak for themselves: u-PVC is the ideal well completion material.
Screen diameter (DN)
Screen diameter (DN)
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Screens and casing made of u-PVC
K casing and screens – acc. to DIN 4925, Parts 1 to 3 and acc. to company standard -standard wall thicknessDimensions (mm) and weight Nom. diameter DN
External diameter d
Wall thickness s
Plug gauge
35 40 50 80 100 115 125 150 175 200 250 300 350 400 500 600
42 48 60 88 113 125 140 165 195 225 280 330 400 450 540 630
3,5 3,5 4,0 4,0 5,0 5,0 6,5 7,5 8,5 10,0 12,5 14,5 17,5 19,5 20,0 18,3
33 39 50 77 98 110 122 146 170 195 243 290 350 395 490 585
Ø
Tensile strength
Ext. diam. Weight kg/m over box (running) d5 46 53 66 94 121 132 149 176 205 241 297 350 425 475 570 655
Lengths KV series Slot widths DN 35 - DN 500 1,0 - 2,0 - 3,0 - 4,0 m DN 35 - DN 115 DN 600 2,0 - 3,0 - 4,0 m DN 125 DN 150 - DN 175 DN 200 - DN 300 DN 350 - DN 400
0,6 0,7 1,1 1,6 2,5 2,8 4,0 5,5 7,4 10,0 15,6 21,2 31,0 38,9 48,2 52,5
Type of thread
Screen kN
R R R R/T R/T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA
1,5 2,0 2,5 4,0 6,5 6,5 10,0 13,0 13,0 26,5 36,5 50,0 65,0 65,0
Compressive strength
Casing kN T
R 4 5 7 8 10
11 17 19 27 40 50 80 100 145 180 260
Casing N/mm2
TNA
4,9 3,2 2,4 0,7 0,7 0,5 0,8 0,7 0,6 0,7 0,7 0,6 0,6 0,6
10 12 15 20 25 40 50 80 90 100
K screens 0,2 - 0,3 - 0,5 - 0,75 - 1,0 - 1,5 - 2,0 mm 0,3 - 0,5 - 0,75 - 1,0 - 1,5 - 2,0 - 3,0 mm 0,5 - 0,75 - 1,0 - 1,5 - 2,0 - 3,0 mm 0,75 - 1,0 - 1,5 - 2,0 - 3,0 mm 1,0 - 1,5 - 2,0 - 3,0 mm
KV casing and screens – acc. to DIN 4925, Parts 2 to 3 and acc. to company standard - thick walled Dimensions (mm) and weight Nom. diameter DN
External diameter d
Wall thickness s
Plug gauge
100 115 125 150 175 200 250 300 350 400
113 125 140 165 195 225 280 330 400 450
7,0 7,5 8,0 9,5 11,5 13,0 16,0 19,0 21,5 23,5
94 105 118 140 163 188 236 281 342 387
Ø
Tensile strength
Ext. diam. Weight kg/m over box (running) d5 125 137 152 180 211 247 304 359 433 490
3,5 4,1 4,9 6,9 9,8 12,8 19,6 27,4 37,7 46,4
Type of thread
Screen kN
T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA
10,0 10,0 12,0 15,0 20,0 30,0 40,0 60,0 70,0 75,0
T
Casing kN
28 30 35 55 80 120 150 220 230 330
Compressive strength
TNA 12 15 18 30 35 55 75 110 110 130
Casing N/mm2 1,9 1,7 1,5 1,5 1,6 1,5 1,5 1,5 1,2 1,1
KVV casing and screens acc. to company standard - extra thick walled Dimensions (mm) and weight Nom. diameter DN
External diameter d
Wall thickness s
Plug gauge
80 100 125 150 175 200 250 300
90 113 140 165 195 225 280 330
6,7 8,2 10,4 12,0 12,8 14,5 18,5 21,5
75 92 112 132 160 185 230 272
Lengths KV/KVV series DN 100 - DN 400 1,0 - 2,0 - 3,0 - 4,0 m Special lengths: 2,80 - 5,70 - 6,0 m on request
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Ø
Tensile strength
Ext. diam. Weight kg/m over box (running) d5 100 127 157 185 214 250 309 364
Slot widths DN 80 - DN 115 DN 125 - DN 150 DN 175 DN 200 DN 250 - DN 300 DN 350 - DN 400
2,6 4,0 6,3 8,5 10,8 14,2 22,4 30,7
Type of thread
Screen kN
T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA
10,0 11,0 12,0 25,0 30,0 40,0 60,0 80,0
KV/KVV screens 0,3 - 0,5 - 0,75 - 1,0 - 1,5 - 2,0 mm 0,5 - 0,75 - 1,0 - 1,5 - 2,0 - 3,0 mm 0,75 - 1,0 - 1,5 - 2,0 - 3,0 mm 1,0 - 1,5 - 2,0 - 3,0 mm 0,75 - 1,0 - 1,5 - 2,0 - 3,0 mm 1,0 - 1,5 - 2,0 - 3,0 mm
T 30 35 50 70 85 130 180 260
Casing kN
Compressive strength
TNA 12 15 25 35 45 65 90 130
Casing N/mm2 3,4 3,1 3,4 3,2 2,3 2,1 2,3 2,2
Gravel pre-coated screens
KK screens “KK” indicates screens with standard wall thickness and a layer of pre-coated gravel. This type offers the advantage of a uniform gravel distribution down to depths where separate gravel packing is either too expensive and/or cannot be conducted effectively. The gravel coating consists of clean and largely well-rounded quartz gravel (96% Si02). The adhesive used is a highly waterproof epoxy resin. It should be noted that permeability of gravel precoated screens corresponds to that of standard K screens as the adhesive at the contact points of the grains takes the place of normal adhesive water. The appropriate gravel size can be applied to meet the specific requirements of the formation with respect to the slot width of the screens.
KK screens - acc. to DIN 4925, Parts 1 to 3 - standard wall thickness -
Screens with DN 100 and bigger can be supplied with even heavier wall thickness and are identified as "KKV".
KKV screens - acc. to DIN 4925, Parts 1 to 3 - thick walled -
Nom. diameter DN
External diameter d
Wall thickness s
35 40 50 80 100 115 125 150 175 200 250 300 350 400
42 48 60 88 113 125 140 165 195 225 280 330 400 450
3,5 3,5 4,0 4,0 5,0 5,0 6,5 7,5 8,5 10,0 12,5 14,5 17,5 19,5
66 72 91 122 146 160 173 199 227 259 312 364 439 488
11 11 15 16 16 16 16 16 16 16 15 16 18 18
Dimensions (mm) and weight Ext. diam Thickness of over gravel gravel layer (approx.) s1 Ø d3
External diameter d
Wall thickness s
Plug gauge
100 115 125 150 175 200 250 300 350 400
113 125 140 165 195 225 280 330 400 450
7,0 7,5 8,0 9,5 11,5 13,0 16,0 19,0 21,5 23,5
94 105 118 140 163 188 236 281 342 387
146 160 173 199 227 259 312 364 439 488
16 16 16 16 16 16 15 16 18 18
Weight kg/m (running)
Type of thread
3,4 3,5 5,0 8,0 11,5 12,5 13,5 17,2 20,0 24,5 33,5 44,0 63,0 74,0
R R R R/T R/T T T T T T T T T T
Weight kg/m (running)
Type of thread
12,5 13,8 14,4 18,6 22,8 27,3 37,5 50,2 69,7 81,5
T T T T T T T T T T
Slot widths and gravel sizes SW 0,75 mm / 0,7 - 1,2 mm SW 2,0 mm / 2,0 - 3,0 mm SW 1,5 mm / 1,5 - 2,0 mm SW 2,0 mm / 3,5 - 5,0 mm
d3
d
d5
S
S1
K and KV pipe d
d5
33 39 50 77 98 110 122 146 170 195 243 290 350 395
Nom. diameter DN
Lengths for KK screens DN 35 - DN 80 1,0 m DN 100 - DN 400 2,0 m
S
Dimensions (mm) and weight Plug gauge Ext. diam. Thickness of over gravel gravel layer (approx.) s1 Ø d3
see table on page 6
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Special K pipes, Multi Level System
Special K series pipes In addition to our standard- and thickwalled series, we supply a range of special pipes. These products have been developed in line with individual needs and specifications. Depending on dimensions, the main areas of application are: flat wells, very deep boreholes or well columns.
KR pipe d
Special K series pipes acc. to company standard Dimensions (mm) and weight Nom. diameter DN
External diameter d
115 125 150 165 200 225 325
125 140 165 180 225 245 370
Wall Plug gauge thickness s Ø 6,0 5,0 5,0 8,0 7,0 10,5 16,5
Ext. diam over box d5
Weight kg/m (running)
Type of thread
146 171 235 264 392
3,4 3,2 3,8 6,4 7,2 11,5 27,0
TNA T T TNA T T/TNA T/TNA
75 125 150 160 205 218 328
Casing N/mm2 0,8 0,3 0,2 0,7 0,2 0,6 0,7
Lengths, slot widths and other dimensions on request
KR screens acc. to company standard - standard wall thickness -
KR series The screens from the KR series feature a pipe exterior with longitudinal ribbing.
Dimensions (mm) and weight Nom. diameter
s h
d5
Multi Level System The Multi Level System allows several qualified water samples to be obtained from a well at the same time. When the pipe string is installed, the multi level screen (DN 35) is arranged separately at the main well casing at the required extraction depth and is secured using special centralisers. The water flows through the screen and is sucked up to ground level through polyethylene tubing. Water is sampled at defined depths simultaneously, saving time compared to the taking of individual samples in continuously screened wells. The samples are also of a better quality as there is no mixing of waters from different depths. A gravel pack screen DN 50 is installed at the bottom of the pipe string and this enables the water level, temperature or other geophysical data to be recorded.
External diameter
DN
d
s
Ø
Ext. diam over socket d5 with ribbing
40 50
52 64
3,5 4,0
39 50
56 69
Wall thickness
Plug gauge
Weight kg/m (running)
Type of thread
Rib height
0,9 1,3
R R
2,0 2,0
h
Lengths and slot widths correspond to those of the K series – other dimensions on request
The elements of the pumpenboese Multi Level System: Element
Size
Description
1 KK screen
DN 50 (60 x 6)
Each 1 m long, DIN thread Gravel coating, grain size: e.g. 0.7 mm – 1.2 mm
2 K casing
DN 50 (60 x 6)
1 m – 4 m long, DIN thread
3 Multi level screen
DN 35
180 mm long, of which 80 mm with gravel coating, grain size e.g. 0.7 mm – 1.2 mm, glued plastic base 10 mm at both ends, with hose coupling nipple 1/4" (8 mm) at upper end
4 K centraliser
Comprising: 2 clamps, 4 springs with 4 holes, 8 mm screws for centralising 8 x 80 mm with nylon nuts
5 Nylon pipe
15 x 1.5 mm, natural
6 K protective casing 7 Protective steel casing
DN 150
For nylon pipe, 1 m long, smooth at both ends (165 x 7.5 mm) Material ST 37 a) 1 x 0.7 m welded steel casing 219.1 x 4.5, smooth at one end, at other end V flange DN 200 mm incl. anchors. b) 1 x 0.7 m welded steel casing 219.1 x 4.5, V flange at one end, at other end welded-in steel cover with 2 handles incl. screws and nuts
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Compressive strength
7
6
5
4
2
3
1
Dewatering with steel and plastic screens and casings
Knocks and blows are borne by the pipes (available in hot galvanised steel and mild steel versions) without diminishing their effectiveness; they can also be quickly and easily joined via their round thread connectors. Mild steel products are also available with welding bridge connectors.
We use steel and plastic (u-PVC) for our dewatering products. We exploit the beneficial properties of the materials, resulting in cost-effective, short- and longterm dewatering solutions. Highly practical: Dewatering using steel products Steel is both tough and impact-resistant. These features, combined with tailored wall thicknesses and tight thread connections, mean that the screens and casings can be used at any depth.
We stock all the necessary accessories and installation tools.
In what are often tough field conditions, steel products show that they are well matched to dewatering projects:
Steel bridge slot screens and casings Nom. diameter (mm)
Wall thickness (mm)
Exterior (mm)
Interior (mm)
External diameter over socket
Weight kg/m (running)
Length (mm)
Max. tensile strength (kN)
150 200 250 300 300 350 400 500 600 700 800
3 3 3 3 4 4 4 4 4 4 4
168 219 273 325 325 368 406 500 600 700 800
162 213 267 319 317 360 398 492 592 692 792
195 250 305 352 352 395 433 510 610 710 810
12 16 20 24 32 36 40 49 59 69 79
1,5/3,0 1,5/3,0 1,5/3,0 1,5/3,0 1,5/3,0 1,5/3,0 1,5/3,0 1,5 1,5 1,5 1,5
60 85 120 170 240 280 320 400 450 -
The press-in round thread connectors allow minimum installation lengths of up to 120 mm per screen/casing. Connection Mild steel Hot galvanised steel
Nominal Nominal Nominal Nominal
size size size size
150 to 400 500 to 800 150 to 400 500 to 800
Round thread or welding bridge Welding bridge Round thread Welding bridge
Bridge slot opening Mild steel 0,8/1,7 mm (+0,2 mm) Hot galvanised steel 0,6/1,5 mm (+0,2 mm)
pumpenboese K sinking screens and casings in u-PVC plastic The advantage of pumpenboese sinking screens and casings manufactured in uPVC is that they are completely corrosionproof, making them suitable for dewatering over an extended period.
Thanks to their extraordinarily long service life and efficient use of material, these u-PVC products are both highly costeffective and resource-friendly.
Nom. diameter (mm)
Wall thickness (mm)
External diameter (mm)
Internal diam (mm)
Ext. diam over socket d5 with ribbing
Weight kg/m (running)
Length (mm)
300
9,2
315
296,6
336
11,8
6,0
Slot width 0,75 - 1,0 mm
Connection type
Push-fit connectors, screens slotted lengthwise
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NORESTA 速 u-PVC pressure pipe system
The NORESTA速 pressure pipe system is a new development which has its origins in the tried-and-tested push-fit connectors from the steel and stainless steel product lines. The design offers users unique solutions for many standard as well as specialist horizontal and vertical pumping applications. No matter whether permanent installations are required, such as in well construction and water distribution, or temporary facilities, as is the case for dewatering, this pressure pipe system is fully versatile. Pipes and double joints are manufactured in plastic. Precision-engineered grooves and mating surfaces combined with Oring seals in ABS (acrylonitrile butadiene styrene) guarantee a secure seal capable of withstanding external and internal forces. Our in-house testing laboratory has extensively researched and documented the seal quality of NORESTA速 connectors, from compressive strength through to buckling resistance. Grooves for incorporating a spline have been added to both the pipes and the double sleeves to help the transferral of axial tensile and compressive forces. Once the connector has been fitted, the polyoxymethylene spline is fed through an opening in the double sleeve into the groove.
This results in a firm attachment between the pipe and the sleeve which has almost the same level of tensile strength as conventional threaded connections and also means quicker, easier and more reliable installation. The tensile and compressive strengths can be read from the following table.
Tensile and compressive strengths Nominal size DN 100 150 200 250 300 350
10
Tensile strength Casing/Screen kN kN 16 30 60 120 160 200
10 15 30 40 60 70
External resistance N/mm2
Internal resistance N/mm2
1,9 1,5 1,5 1,5 1,5 1,2
1,3 1,2 1,2 1,2 1,2 1,1
NORESTA® u-PVC pressure pipe system
The dimensions and material characteristics (please refer to the tables) of NORESTA® are based on the thick-walled u-PVC casing series of DIN 4925, Parts 2 - 3. All materials used are subject to regular inspections by independent testing institutes with regard to their use for potable water ("KTW" recommendation from the German agency for water and gas [DVGW]). The chemical resistance and the physical material characteristics of u-PVC, guarantee a product which can neither be damaged by corrosion nor by adverse environmental conditions. The NORESTA® pressure pipe system is corrosion-resistant to all types of groundwaters, brines, or even diluted acidic and alkaline solutions.
Physical material properties Properties Elastic modulus Charpy impact strength at 20 °C
Unit
Result
N/mm2
2500 - 3000
DIN EN ISO 178
Method of testing
kJ/m2
3-5
DIN EN ISO 179
Density
kg/dm
1,4
Tensile strength
N/mm2
45 - 55
3
Impact resistance
DIN 53479
max. 10% breakage
Vicat softening temperature
°C
80
DIN EN ISO 527-2 Following DIN EN ISO 179 DIN EN ISO 306
Dimensions (mm) and weights Nominal size DN
External diameter d
Wall thickness s
Plug gauge Ø
Ext. diam over box d5
Weight kg/m (running)
100
113
7,0
94
134
3,5
150
165
9,5
140
194
6,9
200
225
13,0
188
262
12,8
250
280
16,0
236
320
19,6
300
330
19,0
281
370
27,4
350
400
21,5
342
450
37,7
Lengths: 1.0 m, 2.0 m, 3.0 m, 4.0 m, 5.0 m, 6.0 m Slot widths: (0.3 mm) 0.5 mm, 0.75 mm, 1.0 mm, 2.0 mm, 3.0 mm Other dimensions on request.
Testing at our in-house laboratory
Compressive strength test
Tensile strength test
1.
Fittings
Products
Dimensions
There is a wide variety of fittings for horizontal installation (water distribution).
1.1 1.2 1.3 1.4
NORESTA® NORESTA® NORESTA® NORESTA®
bends 90°, 45°, 22° and 11 tees reducers end caps
DN DN DN DN
For additional equipment see p. 16/17 or our price list.
100 100 100 100
-
DN DN DN DN
200 200 350 350
1.1 1.2 1.4 1.3
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SBF-NORIP ® – the reliable connection
Construction of groundwater monitoring wells may follow several objectives: • continuous monitoring of existing groundwater conditions • measuring of groundwater levels • preservation of evidence • planning data for water management All objectives have in common the need for exact data which allow for representative statements on groundwater conditions. Therefore, the well equipment selected must guarantee safety of installation and operation for the entire period of use.
Material SBF-NORIP® pipes have been especially developed for use in groundwater monitoring wells. Selected for the specifics of well construction, the u-PVC material offers high resistance to most chemical contaminants as found in groundwater. These products also reliably resist salt waters, brines and diluted acidic solutions. Our more than 20 years' experience with SBF-NORIP® pipes has confirmed that such material can be used in almost any groundwater monitoring well. Plastics absorb water to a limited degree. This includes selective absorption of substances dissolved in water. This characteristic of u-PVC is well known. The high impact resistant u-PVC material as present in SBF-NORIP® systems shows a very high resistance to water-dissolved salts, acids, alkalis as well as to aliphatic hydrocarbons, oil and many organic compounds. In short: the material matches the requirements and expectations of almost all monitoring well operators. Adapted pipe dimensions of thick-walled SBF-NORIP® pipes and the increased impact strength allow for installation at depths of several hundred metres – without compromising safety. The central focus of groundwater monitoring wells is on the extraction of representative analysis data from groundwater samples. The pipe-connecting element of SBF-NORIP® systems is also designed with this in mind. The specially developed double socket allows for a permanently
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leak-proof pipe connection without additional sealing procedures. Unprofessionally assembled pipe connections carry the risk of false measuring data due to the intrusion of water from upper aquifers. SBF-NORIP® sealing systems guarantee that this risk is avoided because of factory pre-mounted O-ring seals and the specially chamfered surface of the pipe ends. The pipe connection by double sockets is tailored to the specific shape and dimensions of SBF-NORIP® pipes. Easily screwable trapezoidal threads offer high tensile strength for the secure installation of SBF-NORIP® systems at all depth levels. Our products are not only lightweight, they also benefit from fast installation times.
SBF-NORIP® – the reliable connection
Properties Especially during installation, monitoring products are exposed to extreme physical loads. But here again, SBF-NORIP® offers necessary safety margins: deviations of the pipe string caused by non-vertical boreholes are safely followed; hindrances during professional installation, for example the stacking of the pipes on rocks extending into the borehole, do not lead to material break downs.
Physical properties of SBF-NORIP® pipes
Benefits High-impact quality, i.e. impact strength of >10 <20 kJ/m2 of the thick-walled pipe system offers decisive safety benefits:
SBF-NORIP® pipes - thick-walled -
Properties
• high collapse resistance rates allow for installation depths of several hund- red metres •
extraordinary flexibility of pipe and pipe connections allow for professio- nal installation even when hindrances occur in the borehole
• even at temperatures of -20 °C, installa- tion of heavy wall thickness pipes can be conducted safely
Method of testing DIN
Elastic modulus
approx.
N/mm
2000 - 2500
DIN EN ISO 178
Charpy impact strength at 23 °
approx.
kJ/m2
10 - 20
DIN EN ISO 179
Density
approx.
g/cm
1,4
Tensile strength
approx.
N/mm2
45 - 55
Impact resistance
approx.
-
max. 10% breakage
Following DIN EN ISO 179
Vicat softening temperature
approx.
°C
80
DIN EN ISO 306
2
2
DIN 53479 DIN EN ISO 527-2
DN 50
External diameter d mm
Wall thickness s mm
Weight kg/m (running)
Type of thread
Compressive strength N/m2
Tensile strength Casing/ Screen kN
65
75
7,5
2,4
T
7,3
25,0/ 8,0
115
125
7,5
4,1
T
1,4
35,0/11,0
125
140
8,0
4,9
T
1,2
45,0/16,0
Lengths
DN 65 - DN 125
1,0 - 2,0 - 3,0 - 4,0 - 6,0 m
Slot widths DN 65 - DN 115 0,3 - 0,5 - 0,75 - 1,0 - 1,5 - 2,0 - 3,0 mm DN 125 0,5 - 0,75 - 1,0 - 1,5 - 2,0 - 3,0 mm T = Trapezoidal threads, DN 65 acc. to work standard, DN 115 - 125 acc. DIN 4925
1)
SBF-NORIP® pipes - double socket DN 50
D mm
L mm
65
92
76
115
143
106
125
162
142
Standard seals are made of ABS (acrylonitrile butadiene rubber), other materials upon request. Packaging/Unit: DN 65 = 10 pcs DN 115 - DN 125 = 5 pcs Partial quantities not possible.
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connection with the steel-reinforced wire wrapped profiles, clearly increases the external collapse resistance of this screen design in comparison with commonly slotted PVC screens. Our in-house collapse tests and the fact that wells have been built up to depths of 400 m prove this characteristic. The permeability of the screen has been tested in extensive investigations. These examinations show that the capacity rates are far higher than those of regular slotted screens. The test results are summarised in the following diagram.
The PVC wire wrapped screen is the result of the combination of screen wrapping technology and the material PVC. An extruded ribbed pipe is perforated according to a certain hole pattern. Then a continuous groove is cut into the external surface. A triangular, steel-reinforced profile wire is wrapped into this groove and fixed at the ends. Depending on the profile thickness and geometry of the wrapping wire, a variety of slot widths can be produced with high precision. The wall thickness of the ribbed pipe, in
Permeability per m screen (m3/h)
PVC wire wrapped screens
16,00 14,57
14,00 12,00 10,75
10,00
9,16
8,00 6,00
5,98 4,96
4,00 2,00
8,21
7,44
3,99 2,6 1,83
3,26 2,3
7,17 5,47
6,11
5,37 4,2
3,6 2,54
3,56 2,61
3,08
0,00 slotted 0,5 mm
Nominal Diameter (mm) wrapped slotted 0,5 mm 0,75 mm
wrapped 0,75 mm
PVC wire wrapped screens - standard wall thickness Nominal size DN
External diameter of pipe
Wall thickness
External diameter of socket
External diameter of wire
Open area %
Weight kg/m (running)
Type of thread
50 80 100 115 125 150 175 200 250 300
60 88 113 125 140 165 202 225 280 315
4 5,0 5,2 6,0 6,7 7,5 15,0 10,8 13,4 15,0
66,0 95,6 118,0 132,0 147,9 173,6 211,0 238,1 291,0 330,0
67 96 119 131 146 171 208 231 288 321
25 25 25 22 24 24 24 20 22 21
1,44 2,0 2,1 2,5 4,4 5,7 9,93 9,9 14,6 19,5
R R/T T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA T/TNA
Lengths Slot widths Thread type
1.0 m, 2.0 m, 3.0 m, 4.0 m from 0.15 mm +/- 0.05 mm standard according to DIN 4925 trapezoidal thread (T), pipe thread (R) non-upset connection (TNA) as special design
Fiberglass Systems - reinforced pipe systems •
As an alternative to traditional materi- als, GWE pumpenboese GmbH recently offers High Pressure Fiberglass- Pipes made of Glass Reinforced Epoxy (GRE)
•
Main applications for these kind of pipes are either the transfer of Oil, Natural Gas, Geothermal Water, Healthy Water or Salt Water (Line Pipes), respectively the application for downhole like Disposal or Injection Tubing, Production Tubing, Casing, Liners or Screens (Tubing & Casing)
• Fiberglass- Pipes are tried and tested under hardest conditions and involve a lot of special benefits:
• GRE pipes can be delivered within a size range from 1-1/2” (DN 35 mm) up to - Resist corrosion caused by CO2, H2S 12” (DN 300 mm) diameter and saltwater • GWE pumpenboese offers a complete - Require no protective coating system existing of different diameters, pressure ranges, connection types, as well as customized special solutions 14
- High internal and external pressure ratings (up to 275 bar) - High tensile ratings - High temperature ratings (up to 104°C) - Chemical resistance against corrosive mediums - Light and easy to handle, less personnel and equipment needed during installati- on, which means the reduction of instal lation costs - Long life service - Improved Flow Capacity due to smoother interior pipe surface, meaning also an increase of pump efficiency and resists the build-up of scale and parrafin
Alternatives in stainless steel, HAGULIT © and PEHD
All materials used in well completion have material-specific differences in corrosion resistance with regard to the chemical substances occurring in groundwater. From a financial point of view, the most sensible option would be to use the material that is the cheapest and has an adequate service life, taking into account calculations of expected chemical exposure. Our detailed knowledge of the materials together with our well-founded experi-
PEHD in groundwater monitoring wells For certain applications we also can provide you with an additional material: PEHD. In comparison to u-PVC, this material has a few additional resistance features and is sufficiently strong to be installed in wells down to 60 m depth, depending on the dimensions.
ence in the field enable us to offer you the most cost-effective solution. We are able to provide stainless steel products, such as wire wrapped, bridge slot and long slot screens, or HAGULIT ® coated steel pipes which demonstrate extremely high resistance to chemical attack. Please refer to our 'Steel' brochure for more details. We will also provide you with premiumquality products which you will need to implement your monitoring well project – all from one supplier: pumpenboese.
PEHD pipes
SDR 17 piping series 8
SDR 11 piping series 5
External diameter of pipe (mm)
Wall thickness (mm)
Threading
Wall thickness (mm)
Threading
63 75 90 110 125 140 160
3,8 4,5 5,4 6,6 7,4 8,3 9,5
TNA TNA TNA
5,8 6,8 8,2 10,0 11,4 12,7 14,6
TNA TNA TNA TNA TNA TNA TNA
Lengths (incl. Slot widths:
threads): 1.0 m up to 6.0 m da 63 0,3 - 0,5 - 0,75 - 1,0 - 1,5 - 2,0 mm da 75 0,5 - 0,75 - 1,0 - 1,5 - 2,0 mm da 90 1,0 - 1,5 - 2,0 mm da 110-140 1,0 - 1,5 - 2,0 - 3,0 - 5,0 - 10,0 mm da 160 1,5 - 2,0 - 3,0 - 5,0 - 10,0 mm
Threads: Trapezoidal thread, non upset (TNA), according to company standard. Different dimensions and designs on request.
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Accessories and installation tools for u-PVC screens and casings
Item
Description
Sizes
1. Sealing Elements / Bottom Caps Sealing elements for sump pipes.
1.2
1.1
DN 35 to DN 100 1.1 bottom caps made of polystyrene (black) DN 40 to DN 175 1.2 bottom caps made of polypropylene (natural) 1.3 sealing plugs made of polyurethane with sealing ring DN 100 to DN 400 (cellular rubber) DN 65 to DN 125 1.4 Sealing Elements
1.3
1.4
1.5
Bottom cap of a monitoring well, made of solid u-PVC with trapezoidal external thread. Connection with bottom SBF-NORIP速 double socket with a face spanner. May also be used as provisional top monitoring cover.
1.5 Sealing elements made of u-PVC (welded-on bottom plate)
DN 80 to DN 600
2. Sealing Caps
for safe sealing of well pipes and monitoring screens & casings.
2.1 gauging pipe cap SEBA/HT, with and without lock gauging pipe cap SEBA, compact, not suitable for SBF-KV pipes (not depicted) 2.2 sealing cap, with top sealing made of u-PVC, alternatively internal or external thread 2.1
DN 40 to DN 150 DN 50 to DN 125 DN 100 to DN 200
(larger sizes on request)
2.2
3. Wellheads
The sealing cover of a bore well. Available in PU and, for larger sizes, in u-PVC, steel or stainless steel. 3.1
3.1 SBF-K wellheads made of PU, for riser pipe connection R 1 1/2" or 2"
4.1
4. Crossovers 4.1 exclusively made of components from the SBF-NORIP- system to connect unequal dimensions, e.g. enlar- ging the pipe diameter at the crossover screen to casing column (to save costs)
DN 100 to DN 200 (larger sizes on request)
Please state the required size combinations.
5. Crossovers
5.1
These are necessary to enlarge the diameter of the pipe column, e.g. at the crossover screen to casing column. To ensure the stability, the difference in diameter of the connecting parts should not be larger than 1.5. For the crossover from PVC casings and screens to steel pipes, e.g. by using API threads, special connecting pieces are available.
5.1 Crossover made of PVC pipe, with socket
16
Sizes and lengths on request.
Accessories and installation tools for u-PVC screens and casings
6. Adapters
Adapters connect two pipes of the same size which have different joints. Examples: trapezoidal thread to pipe thread, thread to solvent welding socket or also both ends externally threaded. Other versions available on request.
6.1
6.1 Adapters made of PVC pipe, in standard lengths of 0.5 m or 1.0 m 6.2 Adapters made of steel/galvanised, length 1 m
6.2
6.3
6.3
Protective steel casing with anchor. Galvanised steel pipe to protect the top of the monitoring well from damage. For anchoring in a concrete base. Top pipe end with external thread for the SEBA cap or with trapezoidal external thread for the SBF-NORIP® cap.
DN 35 to DN 175 DN 50 to DN 100 DN 125, DN 150 DN 50, DN 100 DN 150 with male pipe thread DN 115 with trapezoidal male thread Length: 1.5 m
7. Centralisers
For centring screen and casing columns in a borehole, we recommend the use of centraliser wings or centraliser straps, especially for gravel pack wells. These centralisers are mounted on the pipe column at 6 m – 10 m intervals.
7.1
7.2 7.3
7.1 Centraliser wings made of PEHD (natural) available in two versions: type 70: wing span = 70 mm, adjustable at 10 mm intervals, for annular spaces of 20 mm – 70 mm. type 140: wing span = 140 mm, adjustable at 20mm intervals, for annular spaces of 20 mm – 140mm. 7.2 Centraliser straps, PEHD centralisers in segments including fixing kit, adjustable to well diameters of 150 mm – 400 mm. Mainly used for pump riser pipes. 7.3 Centralisers made of steel (made according to the customer's requirements)
DN 50 to DN 300 DN 80, DN 100, DN 125, DN 150 all sizes on request
8.1
8. Installation tools for u-PVC screens and casings
The installation of pipes can be made in different ways, depending on the well depth and sizes of the PVC materials.
8.2
8.3
8.4
For suspended mounting: 8.1 plastic lifting caps, for safe and trouble-free lifting and lowering of the pipe column 8.2 steel inserts for plastic lifting caps, recommended for weights exceeding 20 kN 8.3 steel lifting caps, especially suitable for extreme conditions and long-term operation 8.4 wooden clamp, to fix the pipe column securely 8.5 steel clamp, specially suitable for installing gravel pack screens 8.6 belt wrench for connecting pipes in sizes of
DN 50 to DN 600 DN 100 to DN 600 DN 175 to DN 500 DN 50 to DN 600 DN 50 to DN 400 (not DN 225, DN 325) DN 50 to DN 300
8.5
8.6
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Accessories and installation tools for u-PVC screens and casings
9. 9.1 9.2 9.3 9.4 9.5
Specialist accessories Profile seals DN 100 to DN 400 acc. to DIN 4925 DN 500 to DN 600 acc. company standard Plastic mesh cloth, packing cloth, corrosion- and tear-proof, made of polyethylene (see table on right) PAN screen stocking (not depicted). Material: tubing made of Dralon-T, homopolymer acrylic fibre. Area of application: fine, sandy soils. Mesh size: in increments from 0.1 mm to 2.0 mm DN 50 to DN 300 Connecting pieces with right-left threads or bayonet connectors (not depicted) on request (For lost installation) Filter gravel in 50 kg plastic bags or loose, available in 5 different grain sizes.
10. Fire extinguishing equipment 10.1 Fire hydrant, form A, DN 100, in cast iron, according to DIN 14244 with gauging connection and plug R1" in gunmetal. 10.2 A-type solid coupling according to DIN 14309 with R 4 1/2" female thread and rubber seal. 10.3 A-type fire hose coupling according to DIN 14313, made of light alloy with chain and 2 'S' hooks. 10.4 Malleable cast iron bend, galvanised, R 4", 90°, with gauging connection 1", bottom connection R 4" socket, side connection R 4 1/2" male thread.
9.2 pumpenboese polyethylene mesh cloth Item no.
Mesh size mm
Fibre thickness Weight mm g/qm
280/150
0,28
0,15
100
300/230
0,29
0,23
180
300/200
0,32
0,20
130
500/230
0,51
0,23
125
600/250
0,61
0,25
110
600/300
0,63
0,30
160
700/380
0,70
0,38
200
950/300
1,00
0,30
100
1200/500
1,24
0,50
230
1200/380
1,25
0,38
150
2000/600
2,00
0,60
260
Width: Standard width 100 cm from pumpenboese stocks, other widths on request. Width tolerance Âą1 cm. Minimum quantity for widths not stocked in bulk (200 running metres).
9.1
10.2
11. Valve boxes 11.1 DIN 4055 valve box for hydrants in pavements and roadways weight: ~29.5 kg 11.2 DIN 4056 valve box for water valves in pavements and roadways weight: ~13.4 kg 11.3 DIN 4057 for tapping valves weight approx. 9 kg 11.4 DIN 3583 (similar) water, weight approx. 54 kg
10.3
10.1
10.4
11.1
12. Collision guards 12.1 triangle guard, red/white, width 800 mm, height 1200 mm 12.2 tree guard, galvanised, width 1000 mm, height 1120 mm
11.2
11.3 11.4
Note: All statements are representative of our present state of knowledge, with the aim of providing information about our products, only. The data provided does not guarantee certain properties or ensure suitability for certain applications. All diagrams, technical drawings and technical 18
data are without obligation unless explicitly stated otherwise. Property rights and trademarks must be taken into consideration. Our quality is warranted by our General Sales Conditions. We reserve the right to make changes without prior notice.
12.1
12.2
pumpenboese steel Abyssinian well screens DN 35 (1¼") – DN 50 (2")
Abyssinian wells Abyssinian wells are suitable for pumping small amounts of low-quality water and are quick and inexpensive to construct. The equipment consists of an Abyssinian well screen, suction pipe and a piston pump or an electric, regenerative centrifugal pump, such as a pumpenboese garden pump, type JP 3.5 or 6, manufactured in nickel-chromium steel. The pumping system has such varied applications as filling troughs and cattle watering tanks in fields, watering allotments or supplying small garden centres. This system is rarely used as a domestic water supply, but it is increasingly used for watering private gardens. Abyssinian well screen construction The well screen consists of an approximately 1.0 m-long galvanised steel pipe with perforations and is wrapped in a brass mesh. The end has a long forged point which is made of solid steel. If the earth is stony and hard, there is a danger that the brass mesh will be damaged.
By way of prevention, the pumpenboese steel screens are fitted with a protective covering as standard.
Available sizes pb steel Abyssinian well screens, hot galvanised with brass mesh and protective cover, solid steel point at bottom, external Whitworth pipe thread according to DIN 2999 at top External diameter of pipe Pipe wall thickness Max. external diameter over point Screen length Point length Weight/piece
Screen diameter (DN)
1¼''
1½''
2''
mm 42,4 mm 3,25 mm 57
48,3 3,25 68
60,3 3,65 78
mm 1150 mm 145 kg 5,0
1150 160 65
1150 180 9,0
Finished Abyssinian well with piston pump or with regenerative centrifugal pump pumpenboese steel Abyssinian well screen In addition we supply: Abyssinian well screen extensions with brass mesh and protective cover in lengths of approx. 100 cm with external Whitworth pipe threads at both ends according to DIN 2999.
pumpenboese TF deep suction screen, self-flushing DN 50 in impact-resistant plastic The TF deep suction screen has now become a vital part in the dewatering process. The information below gives further details on its construction and how it works: Function Self-flushing deep suction screen The self-flushing deep suction screen eliminates the need for a jetting lance. This is replaced by an internal pipe built into the screen. The high-pressure flushing hose is directly coupled to the screen casing. The flushing water flows over the casing, through the internal screen pipe directly to the flushing point. Reaction pressure in the flushing point lifts a ring valve which closes off the annulus between the internal pipe and screen covering. The pressurised water is released via the notched opening of the flushing point. Once the water has been flushed through, a ball valve floats against the valve seat, preventing water and sand from being sucked through the opening. The ring valve drops back to its seat. If a vacuum is now applied to the screen via the casing, the groundwater will be pressed into the screen and flow downwards. There it will be sucked up via the opening of the internal pipe. Finally, it should also be mentioned that
the deep suction system can prevent premature ingress of air, so long as the opening of the internal pipe remains covered sufficiently with water. Deep suction system The internal pipe acts as the suction pump. Thus the depression curve is drawn down into the screen point. This has considerable advantages in grit pumpenboese TF deep suction screen, self-flushing designed for extremely high mechanical loads DN mm Inch External diameter mm Wall thickness mm Version
50 2 60 4 Lengths
pumpenboese TF self-flushing screen, made of impact-resistant plastic, with internal pipe made of impact-resistant plastic with nominal size 30 (1¼''), vacuumsealed at top, secured in form of a flow funnel and below with fitted centraliser strips, with cut gas external thread at both ends on screen covering in accordance with DIN 2999.
1,0 m 1,5 m 2,0 m
Accessories Brass ring valve; flushing point, notched, in malleable cast iron with ball valve Hose opening 35 mm Screen's slotted shaft: 0.3 mm – on request
and gravel soils where a sloped gradient occurs due to a high entry resistance; here, the internal pipe enables the screen to surpass a standard screen as the internal pipe acts as a deep suction pump. Air bubbling through the surface of the screen is not damaging as long as the internal pipe has an adequate water covering at its foot. The self-flushing screen can thus bridge over two groundwater storeys such that a section of the screen is located above and the other section is located below the impermeable layer. The use of a deep suction system also enables stratum water to be recovered.
1 2 3 4 5 6 7
Screen covering 2" Flow funnel Deep suction internal pipe in plastic 1¼" Screen slots Brass ring valve Valve seat for non-return valve Flushing point with ball valve 2"
19
GWE pumpenboese GmbH Moorbeerenweg 1 D-31228 Peine Telefon +49 (0) 5171 294-0 Fax +49 (0) 5171 294-177 Email: info@gwe-gruppe.de www.gwe-gruppe.de
312.001.2
Products for well construction
20