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Crown/Crown-Judd (USA) Swing Check Valves are designed to provide long-term reliability to ensure safe, dependable operation of pipelines and other systems.
Features
  • Simple, dependable design
  • Full bore for passage of pigs
  • All industry-standard end connections such as butt weld, raised face, RTJ and threaded-end. Custom configurations available
  • Available in flow up or down service
  • Wide range of options and accessories

Specifications

Sizes

  • 1/2” - 48”

Pressure Rating

  • Class 150 to 2500

Materials

  • Carbon steel
  • Stainless Steel
  • Exotic materials available upon request

Compliance/Certifications

  • API 6A / 6D
  • API Q1
  • ISO 9001
  • CSA Z245.15
  • ASME B16.34
  • NACE MR-0175, ISO 15156

Temperature

  • -45° C to 204° C/-50° F to 400° F
  • Custom temperature applications available

Options/Accessories

  • Removable seat
  • Exotic seals
  • Fire-safe designs
  • Hydraulic rotary damper
  • Counter weights
  • Lock open levers
  • Worm gear operators
  • Conduit clapper
  • Stem extensions
  • Limit switches
  • Pneumatic, hydraulic and electric actuators
  • Various gland designs

  • Gas and Liquids Pipelines
  • Field Gathering Systems
  • Wellhead Injection Lines
  • Gas Export Facilities
  • Product Tank Farms
  • Pulp and Paper Mills
  • Mining
  • Chemical Processing
  • Gas Storage Caverns
  • Power Generation
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