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Domestic Tank Functions

881 HERSEY STREET ST. PAUL, MN 55114 PHONE (651) 646-1177 FAX (651) 646-1676


Domestic Tank Functions

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Horizontal tank Sketch 2

We can compact this a bit using a Rego 7556R12.0 vapor head Multivalve. The vapor out functions are built into one valve saving three of tank openings. This arrangement is typical on most storage tanks produced today.

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Another arrangement compacts things even further using a Rego 8593AR16.0 Multivalve. Here the vapor out functions and the filler function are built into one valve saving four tank openings. Many tanks were manufactured with this arrangement over the years.

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This arrangement is very spread out, with many tank couplings. Although tanks are not manufactured this way any longer, some of the older tanks will be found with this arrangement.

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Horizontal Tank Sketch 1 (Functional) (Depicts all the tank functions)

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There are nine (9) basic functions that should be provided on a viable domestic propane storage tank. Function Hookup Connection Tank Connection Liquid Out 3/4” FNPT Chek-Lok Adapter Filler 1-1/4” FNPT 1-3/4” Male ACME Vapor Return 3/4” FNPT 1-1/4“ Male ACME The graphics depict the 80% Bleeder 1/4” FNPT To Atmosphere common arrangements Vapor Service 3/4” FNPT FPOL Liquid Level Float Flange Read the Dial Pressure 1/4” FNPT Read the Dial Relief Various FNPT To Atmosphere Drain 1-1/4” FNPT 1-1/4” Pipe Plug


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Horizontal Tank Sketch 4

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This arrangement is an extremely popular effort by Master Tank to consolidate many of the tank functions into a proprietary Multivalve. Because the valve was made only for Master Tank, who is now out of business, the valve cannot be replaced, but can be repaired.

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8484

Vertical Tank Sketches

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120 gallon (420 lb.) upright cylinders may be Quadrifitted with separated valving or Multivalve fitted. The Multivalves are available with either 3/4� MNPT or 1� MNPT tank connection. ASME design cylinders require a 250 psi relief valve setting. DOT (old ICC) design cylinders require a 375 psi relief valve. Vapor Service Filler 80% Bleeder Relief Vapor Service Filler 80% Bleeder Gauge R

QUADRIFITT DESIGN

Gauge

Gauge

Relief Relief Filler Vapor Service 80% Bleeder

MULTIVALVE DESIGN

Gauge

Page 3 of 8

Relief Filler Vapor Service 80% Bleeder


Domestic Tank Functions

Domestic Tank Valves Filler

Liquid Out

7590U 3/4” Chek-Lok

7591U 1-1/4” Chek-Lok

Bleeder

7647SC 3/4” Filler

Vapor Service

7579 1-1/4” Filler

Vapor Return

7573D 3/4” Vapor Return

Multivalve

Multivalve

3165C 3/4” Bleeder 3165F12.0 3/4” Bleeder 12” Dip Tube

9101R1 3/4” Vapor Valve

Vapor Service for Upright Cylinders

7556R12.0 3/4” Vapor, Bleeder, Vapor Return

8593AR16.0 1-1/2” Vapor, Bleeder, Vapor Return, Fill

Multivalve 8484

6532R12.0 3/4” 250# 6533R11.7 3/4“ 375# Vapor, Bleeder, Fill, Relief

Page 4 of 8

6542R12.0 3/4” 250# 6543R11.1 3/4“ 375# Vapor, Bleeder, Fill, Relief

8484 1-1/2” Vapor, Bleeder, Vapor Return, Float Gauge The 8484 valve is obsolete. Shown here for reference only because of its widespread use in our marketplace.


Domestic Tank Functions

Domestic Relief Valves Required relief valve sizing for common domestic ASME tanks. Outside Required Tank Surface Flow Gallons Area sq. ft. SCFM/AIR

Tank Pipe Size

120

39

1078

150

48

1286

250

62

1580

325

79

1930

500

98

2300

1”

1000

174

3684

1-1/4”

3/4” External Relief

External Reliefs Pipe Size

3131G

2060

3/4”

3131-54

W3132G

3340

1”

3132-54

3132G

4130

1-1/4”

3132-54

3135G

5770

1-1/4”

3135-54

3133G

6080

1-1/2”

3133-54

Part Number

Closure caps come standard on external relief valves. Also work on some internal relief valves.

Closure Cap Included

Flow Capacity SCFM/AIR

Internal Relief

Ringed caps come standard on internal relief valves.

Internal Reliefs

R

Flow Capacity SCFM/AIR

Pipe Size

Cap with Ring Included

Closure Cap Also Fits

7583G

1980

3/4”

7583-40

3131-54

8684G

2620

1”

8684-40

3131-54

8685G

4385

1-1/4”

7585-40X

3132-54

Part Number

Cap with Ring

Page 5 of 8

Closure Cap


Domestic Tank Functions

Float Gauges Rochester Liquid Level Gauges Are Magnetic The Rochester liquid level gauges are magnetic. Their design permits the complete sealing off of the inside liquid from the outside gaugehead and dial.This eliminates fire hazards and loss of product from broken glass, leaking packings and the irratic reading of other designs. The Rochester magnetic liquid level gauge operates simply by means of a float actuating a powerful magnet inside the container. This in turn provides an invisible “magnetic coupling� through a solid head with a second magnet on the pointer in the dial chamber. The gauge head completely seals off the liquid in the container so the dial may be removed and replaced quickly without loss of liquid, pressure, vacuuum, or costly downtime.

Typical Dial

Typical Magnetic Liquid Level Gauge

Magnets

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Domestic Tank Functions

Float Gauges

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Domestic Tank Functions

Float Gauges Rochester Glue-on Universal Dial Kits These Universal Dial Kits are meant to replace old obsolete Senior and Junior dials that cannot be repaired with the standard 2 screw dials. The user should obtain silicone adhesive from a local source. Part Number 3180S17001 3181S01749

Attachment

Service

Dial Face

Glue-on

LP-Gas

5 - 95%

Size Senior Junior

3180S17001

3181S01749

5986S02733

5909S02733

Rochester Dials for Horizontal Tanks

Standard Senior and Junior dials that are attached with the 2 screws. Dials are Remote Ready with removable dust cap. Part Number 5986S02733 5909S02733

Attachment

Service

Dial Face

2 Screw

LP-Gas

5 - 95%

Size Senior Junior

Rochester Dials for Vertical Cylinders Dials for vertical cylinders with 10 - 80% faceplate. Available with 2 screw or snap-on mounting. Part Number

Attachment

5909S02772

2 Screw

5364S01951

Snap-on

Service

Dial Face

Size

LP-Gas

10 - 80%

Junior

5909S02772

5364S01951

Taylor Replacement Dials Choose Style A or Style B Mounting Pre-2002

Part Number

Size

130022 (5-2767) Junior 130023 (5-2768)

Rear View of Dials

Style Style A - Guide hole in back of dial at 95% position. Style B - Guide hole in back of dial at 5% position.

Junior & Senior Parts

Part Number

Description

40-415

Senior Screw

15-4

40-414

Junior Screw

15-7

40-416

Dial Screw

Part Number

Page 8 of 8

Description

Post-2002

Style B Part No. 130023 Large pinhole at 5%

Style A Part No. 130022 Large pinhole at 95%

40-414

40-416

15-7


Domestic Tank Functions