1/2" Threaded Pro-Pal Expansion Tank Pro Service Valve w/ Hose Drain

Webstone Valves

Brand: Webstone Valves

Mfr Part#: 41672

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$14.65 / each
x10 $140.50 / box & Free Shipping
(10 x $14.05 / each)
  • Description
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  • Reviews (2)
  • FAQs

1/2" Threaded Pro-Pal Expansion Tank Pro Service Valve (41672) Materials:

  • Body: Brass
  • Seat: PTFE
  • Ball: Brass HCP
  • End Cap: Brass
  • Cap: Brass
  • Washer: EPDM
  • Stem: Brass
  • Stem Seal: PTFE
  • Packing Gland: Brass
  • Handle: Enamel Coated Aluminum
  • Handle Screw: Brass
  • Strap: EPDM


Temperature-Pressure Chart of 41672 Pro Service Valve:

Temp (°F) PSI
100 600
150 490
200 470
250 439
300 411
350 294


For heating applications only.

1/2" Threaded Pro-Pal Expansion Tank Pro Service Valve w/ Hose Drain has an average 5.0 out of 5 rating based on 2 user reviews.
By Verified Buyer (from Los Angeles, CA) on 10/5/2016
Really fast and easy installation . High quality valve!
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Piece of art!
By Momchil, Lic Plumber (from Sacramento,CA) on 8/16/2016
Whoever invent this one-THANK YOU SO SO MUCH! I am a service guy and if you want to service the radiant floor heating ,flush system or do whatever it is a headache to deal with expansion tanks. This assembly is A MUST HAVE on ANY installation. You can separate expansion tank, if you want you can drain it,you can bleed it, fill it. Hats down to this. I will not do a job without it!
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Location: 5407 Foster Ave, Brooklyn, NY 11234