Henry Technologies - 5604-250 - Cast Iron Angle Relief Valve 1-1/4" FPT x 1-1/2" FPT 300 PSI

PRESSURE RELIEF VALVES
Atmospheric, Angle & Straight-Thru Types

FEATURES

• Brass Construction Set and Sealed at the Factory; All NPTF Connections are American Standard Dryseal Tapered Pipe Threads.
• Valves are Stamped with Catalog Number, Size, Pressure Setting, Capacity and ASME-UV National Board Symbol; CRN Number and Flow Arrow.
• All NPTF Connections are American Standard Dryseal Tapered Pipe Threads
• Positive Pressure Relief
• Consistent operation at marked pressure setting
• These relief valves are designed with HENRY’s new “Center Leading Pivot” concept allowing the piston to reseat squarely to the body seat, thus reducing the possibilities of leakage.
• Suitable for Refrigerants 12, 22, 500, 502, 12, 134a, and other Industrial Fluids Non-Corrosive to Brass, Monel, Steel and Teflon
• Temperature Rating: -40°F (-40°C) to +225°F (+107°C)
• Orders Must Specify Catalog Number, Pressure Setting, and Type of Refrigerant or Fluid with which the Valve is to be used; UV/NB Certified Setting Range 150-450 PSI. Contact Henry for Non-Certified Setting Range Information.

Selection of Relief Valves. Most states and municipalities which have refrigeration safety codes conform to the “American Standard Safety Code for Mechanical Refrigeration (ANSI/ASHRAE 15).” This code provides for a relief valve setting not to exceed the design working pressure of the vessel on which the relief valve is installed. The discharge capacity required is based on the size of the vessel and the refrigerant used. The discharge capacity of relief valves varies with the pressure setting. The capacities of Henry Relief Valves at various pressure settings are shown on Data Sheet No. AE 1303, copies of which are available by calling the Engineering and Technical Assistance line 1-800- 627-5148. Whenever conditions permit it is advisable to have the relief valve pressure setting (which must not exceed the design working pressure of the vessel) at lease 25% higher than the normal maximum operating pressure for the refrigerant used.

• Standard Settings Are: 235 PSI, 300 PSI, 350 PSI, 400 PSI, 425 PSI, 450 PSI

Important: Orders must specify pressure setting
Certification: Available if requested on purchase order

• Bodies: 5600 Series, Ductile Iron; 5300 Series, Stainless Steel; 5200 Series, Brass
• Cap: Steel
• Seat inserts, seat discs and main guides, piston Stainless steel
• Seat material: Teflon® or Neoprene where “N”
• Connections: (NPTF) pipe threaded
• Other component metal parts are steel
• Set and sealed at the factory and furnished with nameplates stamped with catalog no., size, pressure setting, capacity and ASME-UV National Board symbol.
• Temp. rating: -20°F (-28°C) to +275°F (+135°C)
• Protective lacquer finish
• Suitable for ammonia, HFC’s and CFC’s, refrigerants and other industrial fluids non-corrosive to steel and Teflon as indicated.
• Each valve has unique serialization for tagging requirements

Relief Valves in the types and sizes shown are constructed in accordance with the requirements of the ASME. These valves are also approved by many local refrigeration and air conditioning codes in the USA and Canada for relief of excess pressure. In addition, these valves are stamped with ASME- UV symbol & NB to indicate National Board certification of capacities between 150 P.S.I. and 450 P.S.I. Whenever conditions permit, it is advisable to have
the relief valve pressure setting (which must not exceed the design working pressure of the vessel) at least 25 percent higher than the normal maximum operating pressure for the refrigerant used.