Topside Valves - PSV

Pilot Operated Safety Relief Valves

2003/4

Pressure relief with Broady Flow Control Series F7000/8000 Series F70PR Flow Safe - Pilot Operated Safety Relief Valves

A Partnership Broady Flow Control are the exclusive agents for the UK and Irish markets, in addition to other key non-US markets, for the new CE marked Flow Safe range of Pilot Operated Valves.

Broady assemble and test each valve in its own large manufacturing facilities at Kingston upon Hull in the UK, and these new products, compliment the already well specified existing range of Relief, Safety Relief, Reducing and Sustaining valves supplied for over 100 years, globally, by Broady Flow Control.

Broady Flow Control Broady Flow Control is an Independent Valve Manufacturer, specialising in Innovative and effective Solutions to satisfy it’s

The Companies

increasing customer demands, challenges and problems in flow control.

1 Relief. Safety relief. Pressure reducing and

sustaining valves.

2 Valves for Naval, Marine and other specialist

applications.

3 Pattern makers and master founders of

corrosion resistant copper based alloys.

4 Overhaul and refurbishment of valves

and other selected products and equipment.

FLOW SAFE

inc

INDUSTRY FOCUS

Flow Safe is a significant USA manufacturer of high quality Pilot Operated Pressure Relief and Safety Relief Valve Products with world-wide sales primarily in the following applications.

Natural Gas production, transmission, storage and distribution.

Oil and petrochemicals.

Mechanical equipment manufacturer’s, including: Reciprocating, Centrifugal, Compressors and Blowers.

Industrial gas industries including Cryogenics.

Pulp and paper, power and chemical industries.

Marine and aerospace.

Food and beverage industries.

1

Applications Natural gas Pilot operated safety relief

improving efficiency. The 100

valves (POSRV) provide

series pilot valve is bubble

overpressure safety protection

tight to the set point upon

for gas and liquid service

opening and to 95% of the

where large capacities, high

set point upon closure, this

accuracy and excellent

allows the user to operate

repeatable bubble tight

close to the nameplate set

shut-offs are required before

pressure, this is true for

or after a system upset.

both gas and liquid service and is distinct

The F7000/8000 and F70PR are both designed to be

advantage over

repeatedly cycled at full

conventional safety relief

pressure throughout their

valves. The 300 series

acceptable range of tempera-

modulating pilot valve is

tures. They are ideally suited

ideal for liquid applications

for systems that require close

and can also be used to

operating to set point pres-

control pressure spikes within

sures with both modulating

your system, which can

and snap acting pilots, there-

minimise regulator-to-pressure

by reducing product loss and

relief valve cycle conflict.

These valves are particularly advantageous and cost effective in installations where: ●

There may be size and weight limitations for the valve.

●

A high cycling rate exists.

●

A long service life is required.

●

Minimal product loss is important.

●

Reduced maintenance and installation time is desirable.

●

All applications, consideration should be given by the end user to

Typical gas line relief valve installation

POSRV Pressure regulator Gas meter

prevent freezing of liquids within the valve, which may under certain conditions cause erratic performance or valve failure.

Traditional Pilot Operated regulator/relief valve

Compare the value!

Value of ownership is offered

High flow rates provide, in

by utilising the POSRV. Easy

many cases, one inlet size

installation and inline mainte-

smaller than equivalent

nance is offered by the right

flow capacity pilot operated

angle body style design.

regulator/relief valves.

POSRV Rain cap Discharge piping

The Flow Safe F70PR features: ●

Simple design

●

Reliable operation

●

Easy installation

●

Easy, inline serviceability

●

Superior flow capacities

●

Easy field testing

●

ESD - emergency shutdown

Top entry access Lift bracket

(capability available with use of dome unloader option)

Drain plug

FTC

2

Applications Traditional Blower relief valve installation

Positive displacement blowers-relief and unloading The modern design technology

main valve allows unloading by

of the F7000/8000 and F70PR

using the relief valve (two

offers for the first time, a

valves in one).

solution for this demanding,

POSRV

Upon start-up, to reduce

high cycle, high vibration/

downstream load the unloaded

pulsation service. Due to the

POSRV provides atmospheric

robust piston design, the

reference. When the blower

F7000/8000 and F70PR can

stage is run, the POSRV reverts

handle the inherent vibrations

back to relief mode.

and pulsations of this blower

less load is applied to motors

steel seating surface, the piston

offering protection, extending

guide rings, and the high L/D

motor life, and in some cases

piston construction allow the

reducing the required motor

valve the ability to operate

horsepower. Expensive butterfly

reliably and for an extended

valves and high maintenance

period of time.

actuators can be avoided when

valve to the dome of the POSRV

Blower Exhaust silencer

By unloading upon start-up,

service. The welded-in stainless

The addition of a solenoid

Inlet silencer

replaced with the combined Relief and Unloader Valve.

Process Industries The F7000/8000 and F70PR pressure relief Valve is a superior choice to protect industrial process applications because of the valves heavy duty, low profile body design.

These valves have the ability to flow high volumes of gas or liquid and allows for a smaller valve size than traditional relief valves to get the the job done. Smaller valves are not only less expensive but also require smaller piping and isolation valving, and the associated connections, both on the inlet and on the outlet.

With a variety of standard features on this range of valves and additional extras on both types including remote pressure pickup, field test connectors and unloading to name a few, allow operators greater versatility in the operation and servicing of this valve.

3

Series F7000/8000

Series F7000/8000 - Pilot operated

Products and features

Today’s industrial needs are being driven by requirements for high capacity, leak-tight safety relief valves to reduce fugitive emissions and to save the customer product. The Flow Safe F7000/8000 Series Pilot Operated Safety relief Valves, with accurate operational characteristics, are engineered to provide superior performance for today’s industries.

F7000/8000 Design features include: ●

Large capacities through the overbored nozzle (F7000) and a variety of reduced orifice selections (F8000), API standard orifices.

●

Direct mount pilot valves, minimising potential leak paths.

●

Modulating or snap-acting, with interchangeable pilot valves.

●

Superior main valve seating force, proportional to nameplate set pressure.

●

Repeatable, bubble-tight seating and re-seating, due to soft seat design.

●

Compact profiles, for easier handling and installation.

●

Adjustable blowdown capability.

●

Superior flow capacities, independently verified.

●

Full lift at set pressure upon demand.

●

Easy convertability of orifice sizes, field adjustable.

●

Integral exhaust with F300 pilot valve.

●

Set pressures from 15 to 6000 psig.

●

-423°F to +525°F temperature range.

●

A variety of materials and end connections, 316SS trim standard on carbon steel main valves.

●

Material traceability availability.

●

Top entry main valve for easy maintenance.

●

Lifting lugs standard on sizes 2x3 and larger.

●

One piece main valve casting with integral flanges.

●

Backflow preventor and field test connection - standard features.

●

Adjustments are heavy duty stainless steel safety-wired and sealed.

●

All valves bear ASME “UV” stamp, at 15 psig and above.

●

Compliance with industry standards, including ASME, NACE and ANSI.

●

CE marked.

4

eries 00/8000

Operation System pressure is routed

closed, dome pressure acting

Modulated pilot valve

from below the valve through

on a different area between

provides zero blowdown, i.e.

the pilot valve to the dome

the top and bottom of the

the main valve opens in

cavity of the main valve. This

piston assembly, creates a

proportion to demand and

pressure acting, on a piston

downward force on the seat

closes at the set pressure.

(dome) area Ad larger than

providing bubble tight shut-off.

the seat area (As), creates

The F7000/8000 utilises an

The orifice size may be easily selected by choosing an

an effective downward force

elastomeric or plastic seat on

overbored fixed inlet nozzle

(F=Px(Ad-As)) holding the

the piston to achieve bubble-

on the F7000, or by

main valve piston down in

tight seating. A dynamic

converting to the api reduced

the closed position.

piston seal prevents any

size orifices (F8000), by

leakage from the dome to

attaching FLOW SAFE’s patent

pressure, the pilot valve

the discharge. Guide rings on

pending annular flow-plug to

reduces the dome pressure,

the piston eliminate metal-to-

the bottom of the piston

proportional to demand if

metal contact with the liner

assembly. This plug reduces

modulating (F300), or fully

and help to provide smooth

the effective flow area of the

if snap-acting (F200), and

and consistent operation.

valve by directing the fluid

allows the piston to go into

Elastomeric/plastic seals seal

between the plug O.D. and

lift. Once the system pressure

the main valve and pilot valves.

the nozzle I.D. This feature

At the designated set

is relieved, the pilot valve

The F200 Snap-Acting pilot

in orifice selection allows

closes at the preset blow-

valve blowdown is set at 5-7%

the valve owner greater

down, allowing the dome to

of the set pressure and can

versatility in valve standardis-

repressurise and the main

be adjusted from 3% to 20%

ation, utilisation, and

valve piston to close. When

if so specified. The F300

minimising inventory.

Closed

Open

Outlet

Inlet

5

Series F7000/8000

Dimensions and weights available full bore orifice (F7000)

Series F7000/8000 Flanged * With F300 Pilot valve.

Deduct 2” for F200 Pilot Valve

inlet flange

outlet flange

A

B

C* approx

approx weight (Ibs)

DEF

1” - 150#

2” - 150#

4.38

4.50

13.25

40

.957”

DEF

1” - 300#

2” - 150#

4.38

4.50

13.25

40

(.72in2)

DEF

1” - 600#

2” - 150#

4.38

4.50

13.25

45

DEF

1” - 900#

2” - 300#

4.94

4.75

13.80

50

.815”

DEF

1” - 1500#

2” - 300#

4.94

4.75

13.80

50

(.52in2)

DEF

1” - 2500#

2” - 300#

4.94

4.75

13.80

55

FGH

1-1/2” - 150#

3” - 150#

5.12

4.87

14.60

50

FGH

1-1/2” - 300#

3” - 150#

5.12

4.87

14.60

50

FGH

1-1/2” - 600#

3” - 150#

5.12

4.87

14.60

55

1.500” 2

(1.77in )

C

dimensions

available API orifice (F8000)**

1.337”

FGH

1-1/2” - 900#

3” - 300#

6.38

6.75

15.10

80

(1.40 in2)

FGH

1-1/2” - 1500#

3” - 300#

6.38

6.75

15.10

80

FGH

1-1/2” - 2500#

3” - 300#

6.38

6.75

15.10

90

GHJ

2” - 150#

3” - 150#

5.37

4.87

15.70

60

GHJ

2” - 300#

3” - 150#

5.37

4.87

15.70

60

GHJ

2” - 600#

3” - 150#

5.37

4.87

15.70

65

1.100” (.95 in2) A 1.939” 2

(2.95) in ) B 1.689”

GHJ

2” - 900#

3” - 300#

6.56

6.75

16.40

80

(2.24 in2)

GHJ

2” - 1500#

3” - 300#

6.56

6.75

16.40

80

GHJ

2” - 2500#

3” - 300#

7.00

6.75

16.40

95

JKL

3” - 150#

4” - 150#

6.13

6.38

18.25

100

JKL

3” - 300#

4” - 150#

6.38

6.38

18.40

100

JKL

3” - 600#

4” - 150#

6.38

6.38

18.40

100

1.503” (1.77in2) 2.900” (6.60 in2)

C

A

B

2.624”

JKL

3” - 900#

4” - 300#

7.50

7.12

17.80

130

(5.40 in2)

JKL

3” - 1500#

4” - 300#

7.50

7.12

17.80

145

LMNP

4” - 150#

6” - 150#

7.75

8.25

18.75

185

3.816”

LMNP

4” - 300#

6” - 150#

7.75

8.25

18.75

185

(11.43 in2)

LMNP

4” - 600#

6” - 150#

7.75

8.25

18.75

195

LMNP

4” - 900#

6” - 300#

9.74

9.19

20.80

240

LMNP

4” - 1500#

6” - 300#

9.74

9.19

20.80

265

QR

6” - 150#

8” - 150#

9.44

9.50

22.75

270

QR

6” - 300#

8” - 150#

9.44

9.50

22.75

270

QR

6” - 900#

8” - 150#

9.70

9.50

23.35

310

T

8” - 150#

10” - 150#

10.88

11.00

26.50

460

T

8” - 300#

10” - 150#

10.88

11.00

26.50

460

T

8” - 600#

10” - 150#

11.62

11.00

27.00

520

W

12” - 150#

16” - 150#

11.92

15.56

32.00

1100

DEF

1” FNPT

2” FNPT

5.06

3.00

14.00

35

FGH

1-1/2” FNPT

3” FNPT

4.63

3.75

14.13

45

3.624” (10.30 in2)

5.760” (26.06 in2)

7.625” (45.66 in2) 11.938” (111.87 in2)

Series F7000/8000 Treaded

.957” (.72 in2) 1.55” (1.77 in2)

6

eries 00/8000

Specifications - F7000 / 8000 INLET /OUTLET FLANGE RATINGS

maximum pressure rating, psig temperature, 째F flange class 150#

300#

600#

900#

1500#

2500#

-423 to -21

-20 to 100

200

300

400

525

C steel

-

285

260

230

200

170

S steel

275

275

240

215

195

170

C steel

-

740

675

655

635

600

S steel

720

720

620

560

515

480

C steel

-

1480

1350

1315

1270

1200

S steel

1440

1440

1240

1120

1030

955

C steel

-

2220

2025

1970

1900

1795

S steel

2160

2160

1860

1680

1540

1435

C steel

-

3705

3375

3280

3170

2995

S steel

3600

3600

3095

2795

2570

2390

C steel

-

6170

5625

5470

5280

4990

S steel

6000

6000

5160

4660

4280

3980

material

Piston seal/wear ring configuration

Carbon steel: ASTM SA216, Grade WCB

F7050

Stainless steel: ASTM SA351, Grade CF8M

piston seal wear ring

Ratings at temperatures equal to or above -20째F per ANSI B16.34

SEAT AND SEAL DATA F7040 continuous process temperature, 째F

piston seal wear ring

Seal configuration F7050 (with elastomer seat)

material

min

max

Buna-N

- 85

+275

15

6000

Vton

- 50

+400

15

6000

- 65

+325

15

6000

Urethane

- 65

+325

15

6000

Teflon

- 423

+400

15

1000

Kel - F

- 424

+400

1000

4000

Vespel

- 423

+550

4000

6000

Peek

- 100

+525

4000

6000

Ethylene Propylene seat

maximum pressure (psig)

minimum pressure (psig)

F7040 (with plastic seat) retainer bolt with locking insert seat

7

Series F7000/8000

Part numbering - F7000/ 8000 The following part numbering system is to be used when ordering a FLOW SAFE F7000 or F8000, with F200 or F300 pilot valves.

Valve type

Type pilot valve

Softgoods

Flow area

ANSI pressure class

7

2

5

0

05

03

04

S1

F

F

Access

Material

Inlet facing

Outlet

Inlet

7

Full bore

8

Reduced bore, controlled flow

2

F200 (gas only)

3

F300 (gas or liquid)

4

Plastic

5

Elastometer

0

Full bore

D-W

API orifice

00

FNPT

05

150 lb

10

300 lb

12

600 lb

14

900 lb

16

1500 lb

18

2500 lb

S

Special

F

Filter

R

Remote sense

M

Manual blowdown

C

Cryo vapouriser

S1

Standard (stainless trim)

SS

All stainless

N1

NACE standard (stainless trim)

NS

NACE (all stainless)

SP

Special

F

Raised face

R

RTJ

T

Screwed

S

Special

02 - 16

Outlet, inches

01 - 12

Inlet, inches

EXAMPLES Description 1 4” x 6” Modulating-type pilot valve; set pressure = 600 psig, natural gas service, carbon steel, NACE, 300# RF Inlet, 150# RF outlet, ‘M’ orifice, Buna-N Seals, filter.

2 3” x 4”, Snapacting-type pilot valve; set pressure = 75 psig, Cryogenic N2 service, stainless steel, 150# RF Inlet, 150# RF outlet, full bore, Teflon main valve seat.

3 1-1/2” x 3, Modulating-type pilot valve; set pressure = 50 psig, 60°F, fresh water service, stainless, 1-1/2” FNPT Inlet, 2” FNPT outlet, ‘G’ orifice, Teflon seat.

Designation

Designation

Designation

835M100406FN1F@600 psig

7240050304FSS@75 psig

834G001503TSS@50 psig

with Buna-N seat and elastometers.

with Teflon seat.

with Teflon seat.

8

eries 70 PR

Series F70 PR - Pilot operated

Products and features

Today’s Natural Gas and Process Industries require leak tight valves to reduce emmisions, save product, and minimise horsepower requirements.

The F70PR Series “High Performance” Pilot Operated pressure relief valves accomplish bubble-tight sealing with accurate and consistent operational characteristics.

F70PR Design features include: ●

Modulating valve action - “less product loss”.

●

Elastomeric seat and seals.

●

Repeatable bubble-tight seating.

●

Rugged, simple and efficient design.

●

Superior flow capacities.

●

10”WC to 285 psig pressure range.

●

-65 to +400°F service temperature.

●

Easy and economical installation.

●

Inline maintenance capability.

●

Pilot exhaust to main valve - standard.

●

Capacities independently verified.

●

Discharge drain plug standard.

●

Lift brackets - 2x3 and larger - standard.

●

Low upset ratio (piston area/seat area).

The policy of Flow Safe and its authorised assemblers is a commitment to value through: Environmentally compatible products.

Cost efficient design, with minimal parts.

Quality products, readily available.

Flexibility, to meet unique customer needs.

“No hassle” service.

9

Series F70 PR

Operation System pressure is routed

CLOSED

from the inlet below the

F100 pilot valve

valve, through a modulating pilot valve to the dome cavity of the valve. At the designated set pressure, the pilot valve reduces the dome pressure, proportional to

Dome cavity

demand at the set pressure, Outlet

and allows the piston to go into lift. Once system pressure is relieved, the pilot valve closes, allowing the dome to repressurise and the main valve piston to close.

When closed, dome pressure

Inlet

acting on a differential area between the top and bottom

Drain plug

OPEN

of the piston assembly, creates a downward force

Lift bracket

on the seat providing bubble-tight shut-off.

The F70PR utilises an elas-

Inlet pressure

tomeric seat on the piston to achieve bubble tight seating.

A dynamic piston seal

Liner Dome pressure

prevent any leakage from

Piston assembly

the dome to the discharge.

Guide rings on the piston prevent any metal-to-metal

Outlet pressure

contact, and help to provide Body

smooth, consistent, and repeatable operation.

Unpressurised

Pressure pick-up tube

F100 low pressure assembly (10�WC - 5 psig)

F100 low pressure assembly (5 - 285 psig)

Main valve cap

Dome feed

Dome feed Pressure inlet Main valve cap

Pressure discharge (at set point)

Pressure discharge

Pressure inlet

10

eries 70PR

Specifications - F70PR SPECIFICATIONS

set pressure range, low pressure (LP)2

10”WC to 5 psig

set pressure range, high pressure (HP)2

5psig to 285 psig (ANSI 150)

process temperature range (continuous)

-65°F to 275°F (400°F w/Viton)

main valve body and liner material1

C

carbon steel (aluminium-1-1/2 x 2) or stainless steel

main valve trim material

aluminium

pilot valve body material

aluminium

A

B

pilot valve trim material

stainless steel

seat and seal material1

buna-n elastomer (viton or other upon request)

D

fitting material

stainless steel

SEAT DATA

continuous process temperature, °F

maximum pressure (psig)

seat material

min

max

minimum pressure (psig)

Buna-N

- 65

275

5

285

Viton*

-65

400

5

285

Ethylene Propylene (EPR)

-65

325

5

285

Kairez*

0

500

5

285

Neoprene (low pressure)

-20

200

10”WC

5

E

A

B F

Note: Viton, Kalrez are registered trademarks of the E.I.Dupont De Mours Company

DIMENSIONS AND WEIGHTS

maximum dimensions (inches)

connections weight (lbs)

inlet

outlet

A

B

C

D

E

F

1 - 1/2 x 2

15

1 - 1.2”FNPT

2”FNPT

2.75

3.00

13.50

13.50

14.50

13.50

2x3

60

2”150#F

3” - 150#RF

4.56

5.30

17.50

16.00

18.50

16.00

3x4

85

3”150#F

4” - 150#RF

5.70

7.00

20.50

17.50

21.50

17.50

4x6

170

4”150#F

6” - 150#RF

7.75

8.25

18.50

19.00

19.50

19.00

6x8

300

6”150#F

8” - 150#RF

9.44

9.50

22.50

22.00

23.50

22.00

8 x 10

500

8”150#F

10” - 150#RF

10.88

11.00

30.25

24.50

31.25

24.50

12 x 16

1200

12”150#F

16” - 150#RF

11.95

15.62

32.95

32.65

37.75

33.30

size

11

Series F70PR

Part numbering - F70PR To properly order and process a F70PR, please specify the following 1

Quantity required; required ship date(s), agreed to on quotation.

5

Material requirements: main valve, main valve trim, pilot valve, softgoods.

9

2

Inlet size and flange rating.

6

Operating conditions.

11 Any special packaging instructions.

3

Outlet size and flange rating.

7

Optional accessories.

12 Shipping instructions.

4

FLOW SAFE part number. See above.

8

Any special requirements.

12

10 00

-

-

Requirement documentation.

10 Valve tagging requirements.

1 2 B

Type valve

Options

02

F70 subassembly

B

bracket mount

03

F100 pilot valve subassembly

D

closed dome tee

12

F70PR assembly

F

inlet filter

R

remote pickup

M

manual blowdown

Type assembly

P

backflow preventer

10

F70PR assembly

T

field test connection

11

F70 subassembly

S

solenoid valve

91

F100 pilot valve subassembly (PV)

V

diverter valve

SP

special

2

carbon steel

3

stainless steel (PV only)

5

aluminium (1/2 x 2 or PV only)

0

low pressure

1

high pressure

Unique part number

03

1-1/2 x 2

00

2x3

01

3x4

04

4x6

05

6x8

06

8 x 10

08

12 x 16

94

Type material

Type pilot valve

F100 pilot valve subassembly

EXAMPLES 3 - Conditions

1 - Conditions

2 - Conditions

Operating pressure =

Operating pressure =

Operating pressure =

42 psig

8” WC

160 psig

Set pressure =

Set pressure =

Set pressure =

50 psig

10” WC

180 psig

Media

Media

Media

Natural gas

Natural gas

Natural gas

Capacity required =

Capacity required =

Capacity required =

500000 SCFH

450000 SCFH

800000 SCFH

Accessories

Accessories

Accessories

Filter

Field test connection and filter

Field test connection

ORDER

ORDER

ORDER

P/N 12 - 1001 - 12BF, F70PR

P/N 12 - 1004 - 02BFT, F70PR

P/N 12 - 1006 - 12T, F70PR HP,

HP, 3 x 4, Set pressure = 50 psig

LP, 4 x 6, Set pressure = 10”WC

8 x 10, Set pressure = 180 psig

12

Accessories and options to pilot valve

Field Test Connector (T) (Standard feature on F7000/8000) This allows the user to verify the set pressure while in service without valve removal. An external pressure source may be attached to the FTC to direct pressure to the pilot valve, while blocking off the inlet pressure, thus

1/2�FNPT

checking the set pressure and the general operation of the valve.

field test connection

backflow preventer check valve

Backflow Preventer (P) (Standard feature on F7000/8000) To prevent backflow into the system, when outlet pressure exceeds the inlet pressure, a backflow preventer can be provided. The outlet pressure is routed to the main valve dome, to ensure that the piston remains closed.

main valve outlet

Remote Pressure Pick-up (R) (Standard feature on F7000/8000)

outlet

Remote pressure pickup is recommended when inlet piping pressure

F70PR

losses exceed 3% to the relief valve. This allows a remote, more direct pressure sensing to the pilot valve, plus an excellent source of clean air.

inlet

manual valve

Manual/Remote Blowdown (M) Allows for main valve lift by bypassing the pilot valve. Accomplished by a manual blowdown valve.

solenoid valve or control valve

Remote -Unload Blowdown (SC or SO) Allows for main valve lift by bypassing the pilot valve. Ideal as an unloading valve to eliminate/vent system pressure for positive displacement blowers, or to act as an emergency shutdown device (ESD) for the natural gas compressor industry. Accomplished by use of an automatic blowdown valve, pneumatic, provided

hydraulic,

or

electric

valve.

Automatic

valves

can

be

in AC or DC, Normal Closed or Normally Open (preferred as

fail safe).

Inlet Supply Filter (F)

to pilot valve

This should be used for dirty applications to clean the supply gas to the pilot valve. This is supplied with a purge vent. filter

Closed Dome Tee (D) This allows the user to verify the set pressure while in service without valve removal. A tee is provided on the main valve cap to attach a gage or any other instrumentation.

Diverter Assembly (V) (F70PR Only) Two F100 Pilot valves can be supplied mounted to the F70 main valve assembly, with a switching for maintenance and servicing.

Dual Pilot Valve (Y) Two F100 pilot valves can be supplied mounted to the F70 main valve assembly, with a switchover valve in between. The pilot valves can be set at two separate set pressures, allowing the operator the flexibility to change the set point or perform maintenance on one of the pilot valves.

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Other products available from Broady Flow Control

Liquid relief valve - F84L

Reducing valves - A, AB, C6, C3, C7, C8, D, B2

Unloader Valves - F70U Low pressure reducing valves - CL3

Sustaining valves - Type A, Type D,Type 9

With whistle - F80M

Safety relief valves to API and ASME - Type 3500 Safety relief valves - F84, F85

Other safety and relief valves - 180 & 180S, 2600 14

Broady Flow Control Ltd English Street Kingston upon Hull East Yorkshire HU3 2DU telephone: +44 (0) 1482 619600 facsimilie: +44 (0) 1482 619700 email: sales@broady.co.uk website: www.broady.co.uk