Sales Kit

FLEX2PRO PH and WHV Thermal Expansion Tanks

WHV:

These potable water expansion tanks feature a 100% butyl diaphragm combined with a copolymer lower water chamber for maximum water and air separation. There is no better way to separate the system water from the tank's air precharge. The system connection has a stainless steel elbow to prevent corrosion, and the tanks are finished with appliance-quality paint to help prevent external corrosion. Not to mention, every WHV tank is comprehensively tested and backed by Flexcon's five-year limited warranty.

PH:

These potable water expansion tanks feature a 100% butyl diaphragm and plastic liner to separate the system water from the tanks air precharge. The system has a stainless steel sleeve to prevent corrosion, something no other manufacturer offers. And, the tanks are finished with appliance-quality paint to help prevent external corrosion. On top of all of this, every PH tank is comprehensively tested and backed by Flexcon's one-year limited warranty.

Materials of Construction

  • Tank: 16- gauge cold rolled steel
  • Finish: Appliance-quality paint for indoor or outdoor installation
  • Water chambers: Top chamber is 100% butyl rubber, lower water chamber is copolymer polypropylene
  • Connection: Welded steel (WHV); Stainless Steel (PH)
  • Testing: High pressure, seam weld, helium, final precharge check
  • Air valve: Brass valve with O-ring seal
  • Warranty: Five year (WHV); One year (PH)

 

 

Product Literature

Warranty Information

Potable Water Expansion Tank | Thermal Expansion Tanks

Dimension Table

Model Volume (Gal.)Volume (Liter)Acceptance (Gal.)Acceptance (Liter)A (in.)A (cm.)B (in.)B (cm.)C (in.)C (cm.)Weight (lbs)Weight (kg)
PH52.18.93.611.630.08.020.03/41.95.02.3
PH124.8182.28.114.537.011.028.03/41.910.04.5
PH259.0324.114.418.948.112.531.63/41.915.47.0
WHV5014.0606.327.016.040.621.755.881.02.5432.014.5
WHV7520.0809.036.016.040.628.873.661.02.5439.017.7
WHV12032.012014.454.521.053.3427.870.51.03.1860.027.3
WHV16544.017019.876.521.053.3436.292.071 1/43.1872.032.7
WHV32085.032538.3146.326.066.0444.4113.031 1/43.18140.054.9

Sizing Chart Table

Model Volume
(Gal.)
Volume
(Liter)
20/40
(Gal.)
20/40
(Liter)
water heater size (volume130 F140 F160 F180 F
30 GALLONPH5PH5PH5PH5
40 GALLONPH5PH5PH5PH5
50 GALLONPH5PH5PH5PH12
60 GALLONPH5PH5PH5PH12
80 GALLONPH5PH12PH12PH12
100 GALLONPH12PH12PH12PH25
120 GALLONPH12PH12PH12PH25
150 GALLONPH12PH12PH25PH25
175 GALLONPH12PH25PH25WHV50
200 GALLONSPH25PH25WHV50WHV50
240 GALLONSPH25PH25WHV50WHV75
260 GALLONSPH25WHV50WHV50WHV75
280 GALLONSPH25WHV50WHV75WHV75
300 GALLONSWHV50WHV50WHV75WHV120
350 GALLONSWHV50WHC50WHV75WHV120
400 GALLONSWHV50WHV75WHV120WHV120