Emerson Fisher H284-250 2 in. MNPT Brass Internal Relief Valve for Large Stationary Tanks, 250 PSI Start to Discharge

Description

Emerson Fisher Type H284 internal relief valves are used on stationary LP-Gas bulk storage tanks. When used in ASME tanks, the valves have only the poppet and part of the body outside the tank. The adjusting screw and all other parts are inside the tank, safe from tampering. Outlet is 3 in. NPT for discharge stack connection.This product is backed by a 10 year warranty. Note: Not for use in transport or mobile tank applications or Anhydrous Ammonia (NH3) service. Use with a 3 1/2 in. hesize installation tool. Features UL Approved Brass Construction Stainless Steel Springs Molded Flat Seals Standard Spring Settings Nitrile (NBR) Seat Serial Numbers for Identification Specifications Type: H284-250 Container Connection: 2 in. MNPT Discharge Stack Connection: 3 in. MNPT Service: LPGConstruction Material Body: Brass Stem: Stainless Steel Disc Holder: Stainless Steel Disc Material: Nitrile (NBR) Springs: Stainless SteelStart to Discharge Setting: 250 psig (17.2 bar) Flow Capacity:UL: 10,530 SCFM (17,891 SCMH) ASME: 9,724 SCFM (16,521 SCMH) For Tank With Area Up To: 625 Ft² (58.1 m²) Flow Area: 3.20 sq. in. Temperature Rating: -20° to 160°F (-29° to 71°C) Approval: UL Listed Warranty: 10 Years Downloads Instruction Manual (PDF Download) Data Sheet (PDF Download) Drawings Schematics (PDF Download)