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High Temperature Bladder Tanks
Type I Series ASME Bag Thermal Expansion Absorber

JWTA Series Specs Form 699b
Sizes 158 - 528 gallon, 600 - 2000 liters

Diaphragm Tank for drinking water
with 304 stainless steel wetted parts.

Specs and Prices
Potable Water Tanks

Well Pressure Tank (specs 616)
Well Water Pressure Tank (specs 621)
Well Tank (specs 635)
Diaphragm Pressure Tank (specs 645)
Non-Potable Water Tanks
Bladder Tank (specs 615)
Bladder Expansion Tank (specs 620)
Bladder Water Tanks (specs 636)
High Temperature Bladder Tanks
Bladder Pressure Tank (specs 699A)
Diaphragm Tank (specs 699B)
Installation and Specs
Installation for Bottom Outlet Bag Tank
Technical Bulletin TB001
Technical Bulletin TB002

DIAPHRAGM TANK THEORY AND OPERATION


The thermal expansion absorber is designed to eliminate the
following problems:

  • Lost BTUs and Energy Waste

  • Prevents Unnecessary Relief Valve Operation

  • Relief Valve Spillage and Messy Floors

The thermal expansion absorber is installed in the supply line between the back flow preventer and the hot water heater. As water temperature rises, expanded hot water enters the bladder. The outer air chamber absorbs the pressure increase, thus keeping the system pressure below the relief valve setting. The pressure in the air chamber forces water back into the system as hot water is being used. When the tank is empty the pressure on the air side will then equal the supply pressure.

Type I - FORM 699B

Diaphragm Tank

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DIAPHRAGM TANK FEATURES

  • Capable of Operating at 90% of Total Actual Tank Volume

  • Full Volume Flexible Elastimer Bag

  • FDA Approved Potable Material

  • Fully Replaceable Bladder vs. Competition's
    Non-Replacable Diaphragms

  • Water amd Air Separation Eliminates Corrosion

  • Eliminates Water Logging

  • Smaller Tanks Save Space

  • Carbon Steel Construction

  • Stainless Steel System Connection

DIAPHRAGM TANK OPTIONS

  • Higher Pressure Available - Consult Factory

  • Smaller Capacity Tanks Available - Form #699B

DIAPHRAGM TANK SPECIFICATIONS


TYPE DESIGN & CONSTRUCTION - ASME Section VIII Division I

MAXIMUM WORKING PRESSURE - 125 PSIG

MAXIMUM OPERATING TEMPERATURE - 240ºF

FACTORY PRECHARGE - 12 PSIG adjustable up
to 100 PSIG in the field

FOR PRICES REFER TO FORM #799

FINISH - Gray Primer

FOR VERTICAL APPLICATIONS

Part Number
Tank Capacity
A
(Dia. In.)
B
(Ht. In.)
Sys.
Conn.
Ship
Wt.Lbs.
W.P.
Prices
US $
Gallons
Liters

JWTA-20-011

158

600

30"

72"

2"

375

125

4,787.00

JWTA-20-012

211

800

30"

90"

2"

447

125

5,140.00

JWTA-20-013

264

1,000

36"

81"

2"

551

125

6,452.00

JWTA-20-014

317

1200

36"

92 1/2"

2"

615

125

6,853.00

JWTA-20-015

370

1,400

36"

105"

2"

694

125

7,389.00

JWTA-20-016

422

1,600

48"

77"

2"

1,098

125

10,188.00

JWTA-20-017

528

2,000

48"

91 1/4"

2"

1,239

125

10,680.00

PRICES AND SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

PRICES LISTED ABOVE ARE SUBJECT TO ADDITION OF ANY TAX IMPOSED BY ANY PRESENT FEDERAL, STATE, COUNTY OR MUNICIPAL LAW.
PRICES SHOWN DO NOT CONSTITUTE A CONTRACT TO DELIVER AT THESE PRICES.

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