Bell & Gossett 1" ATFL Airtrol Fitting (For 100 Gal or Large Compression Tank)

TANK FITTINGS DESCRIPTION Airtrol Tank Fittings help establish the proper initial liquid level in the compression tank when filling the hydronic system. They help maintain proper system pressurization by directing released air to the compression tank during system operation and permit cooler liquid flow to the boiler during the off cycle as system liquid cools. Airtrol Tank Fittings must be used with the appropriately sized In-Line Airtrol or Rolairtrol air separator. Tank Connection is 1/2" Male, Boiler Connection is 1" Female. CONSTRUCTION Body Type: Cast Iron Connection Type: Threaded Tubes: Copper and Copper Plated Vent Tube Fitting: Brass Ball Check: ATFL (only), Stainless Steel PERFORMANCE CHARACTERISTICS All Tank Fittings Max Pressure :175 psig (1206 kPa) ATFL Drain-O-Tank Valve Max Pressure: 125 psig (862 kPa) Max Operating Temperature - All Fittings: 250+F (121+C)