The Emerson Kunkle Model 337 safety relief valve is used for the protection of low to medium pressure high volume blowers, compressors, conveying systems and bulk hauling trailers/equipment.

Setting and testing of the valve is included free of charge, along with a pressure test certificate confirming this.

Features:

- Large nozzle design provides high capacity.
- Flat bronze valve seats are lapped for optimum performance.
- Warn ring offers easy adjustability for precise opening with minimum pre-open or simmer.
- Pivot between disc and spring corrects misalignment and compensates for spring side thrust.
- Model 337 has 'lift-pin' lift device for easy manual testing.
- Bronze nozzle and disc as standard. Optional SS trim available.
- Each valve tested and inspected for pressure setting and leakage.

Material: Body - Cast Iron / Nozzle - Bronze
Sizes: 2" to 3" (DN50 to DN80)
Connections: NPT Male Inlet x NPT Female Outlet or BSPT Male Inlet x BSPT Female Outlet
Orifice: 2" - 1.916 Sq.ins / 2.1/2" - 2.786 Sq.ins / 3" - 4.037 Sq.ins
Medium: Air
Pressure Range: 0.07 to 4.1 barg (1 to 60 psig)
Temperature Range: -29°C to 208°C (-20°F to 406°F)The Emerson Kunkle Model 337 safety relief valve is used for the protection of low to medium pressure high volume blowers, compressors, conveying systems and bulk hauling trailers/equipment.Setting and testing of the valve is included free of charge, along with a pressure test certificate confirming this.Features:- Large nozzle design provides high capacity.- Flat bronze valve seats are lapped for optimum performance.- Warn ring offers easy adjustability for precise opening with minimum pre-open or simmer.- Pivot between disc and spring corrects misalignment and compensates for spring side thrust.- Model 337 has 'lift-pin' lift device for easy manual testing.- Bronze nozzle and disc as standard. Optional SS trim available.- Each valve tested and inspected for pressure setting and leakage.Material: Body - Cast Iron / Nozzle - BronzeSizes: 2" to 3" (DN50 to DN80)Connections: NPT Male Inlet x NPT Female Outlet or BSPT Male Inlet x BSPT Female OutletOrifice: 2" - 1.916 Sq.ins / 2.1/2" - 2.786 Sq.ins / 3" - 4.037 Sq.insMedium: AirPressure Range: 0.07 to 4.1 barg (1 to 60 psig)Temperature Range: -29°C to 208°C (-20°F to 406°F)