Bell & Gossett PT-12 Expansion Tank, 4.4 Gal, Potable

• Residential and Commercial Applications
• Controls System Pressure
• Protects Plumbing Fixtures
• Eliminates Relief Valve Blow-Off
• FDA Approved Materials
• High Maximum Operating Temperatures
• High Working Pressures of 150 PSI

Designed for Potable Hot Water Systems

DESCRIPTION
The Series PT expansion tank is designed to absorb the forces
of expanding water and protect a potable water system from
pressure build up. The FDA approved heavy duty butyl diaphragm with polypropylene liner (sizes PT-5 through
PT-210V) and FDA approved heavy duty butyl bladder
(sizes PT-451 through PT-457) completely isolate the
water from the steel shell.
Models PT-5 through PT-210V are listed by NSF 61.

RESIDENTIAL/LIGHT COMMERCIAL
NON-ASME DIAPHRAGM TANKS
Maximum Working Pressure:
PT-5 & PT-12: 150 PSI (1035kPa)
PT-25V thru PT-210V: 100 PSI (689kPa)
Maximum Operating Temperature: 200ºF m(93ºC)
Materials: Steel Shell, Polypropylene Liner, Butyl Diaphragm
System Connection: PT-25V thru PT-210V are stainless steel.
All others are brass.
Factory Pre-charge: 38 PSI (276kPa)

COMMERCIAL NON-ASME BLADDER TANKS
Maximum Working Pressure: 150 PSI (1035kPa)
Maximum Operating Temperature: 240ºF m(116ºC)
Materials: Steel Shell, Butyl Bladder
System Connection: Bronze
Factory Pre-charge: 55 PSI (379kPa)