Crosby Valve 900 relief safety
Crosby Valve 900 relief safety

Specs & Brochures



Crosby 900 Direct Spring Operated Pressure Relief Valves

Sizes: 1/2" x 1" to 2" x 2" and 1 1/2" x 2 1/2" Orifices: 0.074 to 0.503 in2 [0.477 to 3.25 cm2] Connections: NPT, Flanged, Male socket weld Temperature range: -450 to +750°F [-268 to +399°C] Set pressures: 5 to 5000 psig [0.34 to 344.83 barg] Steam Limit 1000 psig Code: ASME VIII and ASME III [15 psig and above]

Crosby Series 900 OMNI-TRIM full nozzle design pressure relief valves have a simplified, single trim design with superior application versatility. They provide overpressure protection for thermal relief and medium flow applications in refineries, chemical and petrochemical plants, power plant auxiliary systems and pulp & paper mills. The Series 900 has been used successfully in thousands of industrial process applications since its inception in 1990.

Series 900 OMNI-TRIM pressure relief valves provide overpressure protection on air, gas, vapor, liquid thermal relief and steam service. Maximum fixed blowdown is typically 20% or less.

Standardization of components in the OMNI-TRIM provides easy assembly, durability, ease of maintenance and lower inventory costs. The design and wide array of options provide maximum versatility and premium performance.

Effective orifice areas are 0.074, 0.110, 0.196, 0.307 and 0.503 sq. in. [47.7, 71.0, 126, 198 and 325 sq. mm].

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