We provide our customers with a friendly, experienced point of contact to source Crosby OMNI­TRIM Direct Pressure Relief Valves. We have a broad range of capabilities and bring a wealth of experience and additional value. This means we can supply spare parts or complete products with competitive pricing and delivery. Please complete the form at the bottom of this page or send your RFQ to crosby@chaseint.co.uk.

Crosby pressure relief valves have maintained leadership in overpressure protection for over 140 years. The direct spring-operated safety and pressure relief valves are among the world’s most widely used for oil and gas production and refining, petrochemical and chemical processing, and conventional and nuclear power. Crosby pressure relief valves maintain the industry’s most extensive and capable flow facilities for testing in air, steam, and water.

CHASE has supplied Crosby pressure relief valves for many years. We have a close working relationship with manufacturers, Emerson.

Crosby Series 900 OMNITRIM Direct Spring Operated Pressure Relief Valves

General Application

Crosby’s Series 800 adjustable blowdown and Series 900 fixed blowdown OMNI-TRIM® full nozzle pressure relief valves have a simplified, single trim design with superior application versatility.

The Crosby OMNITRIM pressure relief valve is the proven solution for overpressure protection and/or thermal relief applications on air, gas, vapor, liquid and steam. Its simple design makes it ideal for refineries, chemical and petrochemical plants, power plant auxiliary systems and pulp and paper mills.

Features

  • ASME/NB certified capacities for air, water and steam.
  • Full compliance with all major global pressure relief standards including ASME Section VIII and XIII (UV Designator), API 527, EN4126, PED/CE and numerous other standards.
  • Series 900 uses single trim design for liquid, gas, and vapor services.
  • Highly customizable to meet most applications.
  • Interchangeable parts to reduce maintenance costs.
  • Full nozzle configuration.
  • Simple and reliable design.
  • Easy maintenance.
  • Soft seat options for superior seat tightness.
  • BP balanced piston option to offset the effects of variable back pressure.

Technical Data

  • Sizes: ½” x 1” to 2” x 2” and 1½” x 2½” (DN 15 x 25 to 50 x 50 and 40 x 65)
  • Orifices: 0.074 to 0.503 in2 (47.7 to 325 mm2)
  • 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 345 barg)
  • Steam limit: 1000 psig (69 barg)
  • Codes: ASME Section VIII and XIII (UV Designator) and ASME Section III (NV Designator)

For pricing and delivery on any Crosby OMNI­TRIM Valves please complete the form below or send your RFQ to crosby@chaseint.co.uk.