Water-tight reservoir for expanded water |
Thick, heavy duty Butyl/EPDM diaphragm for long service life |
Sealed air cushion-factory precharged and 100% tested |
12 psig factory precharge |
Strong, deep-drawn steel tank |
Projection welded air stem maintains precharge setting |
1/2 in NPTM system connection |
Accepts expanded water as system temperature rises to reduce pressure build-up |
Helps reduce energy consumption and reduces system wear |
Fill-Trol® models eliminate the need for a separate automatic fill valve and tank pressure controls system fill |
Suitable in propylene glycol applications with mixtures up to 50% |