Expansion Tanks

Amtrol invented the thermal expansion tank to control pressure build-up in closed, potable water systems. This prevents the water heater pressure relief valve from opening, saves energy and eliminates a potential safety hazard. All Therm-X-Trol expansion...

Pro-Pal Expansion Tank Pro Service Valve, Full Port Forged Brass Ball Valve, w/ Hi-Flow Hose Drain (FIP x MIP x FIP x HOSE) Specs  Size: 1/2 in. x 1/2 in Material: Brass Pressure Rating: 600 CWP Downloads Specification Sheet

Zilmet ZEP1 Thermal Stainless Steel Expansion Tank Features 150 PSIG Max working pressure 50 PSIG factory precharge  Air charge can be adjusted and is serviceable  Entire tank is constructed of 304 stainless steel  ½” NPTM...

Flextron E-FTH15 2.1 Gallon Hydronic Expansion Tank For Heating Systems 1/2" NPT Hydronic expansion tanks are diaphragm type tanks designed to keep system pressures below relief valve settings. Hydronic expansion tanks absorb the expansion of water in...

Zilmet ZHT8-15 2.1 Gallon Hydronic #15 Expansion Tank Features Each tank is factory leak tested to ensure tank integrity  Certified synthetic SBR rubber diaphragm  All diaphragms designed to maximize drawdown  MIG welding eliminates...

Flextron E-FTT12 4.8 Gallon Thermal Expansion Tank For Hot Water Heaters Prevent Dangerous Pressure Build Up • Protect Appliances and Fixtures • Save Energy and Water Features All Tanks are NSF61 Certified MIG Welding Eliminates Interior...

Protect Your Hydronic System with Hydronic Expansion Tanks. Hydronic expansion tanks are specially designed diaphragm-type tanks that regulate system pressure, preventing over-pressurization and ensuring the longevity of your residential or commercial...

Extrol expansion tanks accept expanded fluid in closed-loop hydronic systems to control pressure buildup, improve comfort and help reduce energy costs. Nearly seven decades after inventing the first diaphragm expansion tank, Amtrol’s lineup now...

Zilmet ZHT18-30 4.8 Gallon Hydronic #30 Expansion Tank Features Each tank is factory leak tested to ensure tank integrity  Certified synthetic SBR rubber diaphragm  All diaphragms designed to maximize drawdown  MIG welding eliminates...

Zilmet ZHP12 4.8 Gallon Thermal Expansion Tank The Zilmet Side Connection Advantage: Easier & quicker installation, less expensive installation, less vulnerable to corrosion at the connector. Features External baked epoxy-polyester coating provides...

Extrol expansion tanks accept expanded fluid in closed-loop hydronic systems to control pressure buildup, improve comfort and help reduce energy costs. Nearly seven decades after inventing the first diaphragm expansion tank, Amtrol’s lineup now...

Amtrol invented the thermal expansion tank to control pressure build-up in closed, potable water systems. This prevents the water heater pressure relief valve from opening, saves energy and eliminates a potential safety hazard. All Therm-X-Trol expansion...