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Check Valve Specifications

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    Stream-Flo check valves are reliable and efficient flow control devices designed to prevent backflow and protect against contamination and equipment damage.

    Swing Check Valve Basic Specifications

    Applications

    • 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

    Design

    • 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

    Sizes

    • 1/2” – 48”

    Pressure Rating

    • Class 150 to 2500

    Materials

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

    Specification Compliance

    • API 6A / 6D
    • API Q1
    • ISO 9001
    • CSA Z245.15
    • ASME B16.34
    • NACE MR0175/ISO 15156

    Literature

    Crown / Crown-Judd (Canada/US)
    Crown (Canada)
    Crown-Judd (US)

    Piston (Non-Slam) Check Valve Basic Specifications

    Applications

    • Gas and liquids pipelines
    • Field gathering systems
    • Wellhead injection lines
    • Gas export facilities
    • Product tank farms
    • Chemical processing
    • Gas storage caverns
    • Power generation

    Design

    • Axial flow
    • Raised face, butt weld and RTJ ends
    • Simple, dependable design
    • Available for vertical flow-up or down service
    • Helical compression spring is engineered to effect valve closure automatically at zero velocity (before reverse flow begins)

    Sizes

    • 2” – 12”

    Pressure Rating

    • Class 150 to 2500

    Materials

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

    Specification Compliance

    • API 6A / 6D
    • API Q1
    • ISO 9001
    • CSA Z245.15
    • ASME B16.34
    • NACE MR0175/ISO 15156

    Temperature

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

    Options/Accessories

    • Exotic seals
    • Variable cracking pressures

    Literature

    Crown / Crown-Judd (Canada/US)

    Wafer Check Valve Basic Specifications

    Applications

    • Gas and liquids pipelines
    • Field gathering systems
    • Wellhead injection lines
    • Gas export facilities
    • Product tank farms
    • Chemical processing
    • Gas storage caverns
    • Power generation

    Design

    • Economical
    • Space-saving design
    • Suitable for horizontal or vertical flow-up service
    • Clapper opens in downstream piping

    Sizes

    • 2” – 42”

    Pressure Rating

    • Class 150 to 2500

    Materials

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

    Specification Compliance

    • API 6A / 6D
    • ISO Q1
    • CSA Z24.15
    • ASME B16.34
    • NACE MR0175/ISO 15156

    Temperature

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

    Literature

    Crown (Canada)
    Crown-Judd (US)

    Wafer Nozzle (Non-Slam) Check Valve Basic Specifications

    Applications

    • Gas applications and low viscosity liquid lines
    • Field gathering systems
    • Wellhead injection lines
    • Gas export facilities
    • Product tank farms
    • Chemical processing
    • Gas storage caverns
    • Power generation
    • Custom applications available upon request

    Design

    • Non-slam
    • Low pressure drop
    • Space-saving design
    • Available for vertical flow-up or down service

    Sizes

    • 2” – 12”

    Pressure Rating

    • Class 150 to 2500

    Materials

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

    Specification Compliance

    • API 6A / 6D
    • ISO Q1
    • ISO 9001
    • CSA Z24.15
    • ASME B16.34
    • NACE MR0175/ISO 15156

    Temperature

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

    Literature

    Crown-Europa (Non-Slam) Nozzle Check Valve Basic Specifications

    Applications

    • Gas applications and low viscosity liquid lines
    • Field gathering systems
    • Wellhead injection lines
    • Gas export facilities
    • Product tank farms
    • Chemical processing
    • Gas storage caverns
    • Power generation
    • Custom applications available upon request

    Design

    • Non-slam, axial flow
    • Low maintenance costs
    • Provides energy savings due to low pressure drops
    • All industry-standard end connections such as butt weld, raised face, RTJ and threaded-end.
    • Custom configurations available
    • Available in vertical flow up or down service

    Sizes

    • 2” – 60”

    Pressure Rating

    • Class 150 to 2500

    Materials

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

    Specification Compliance

    • API 6A / 6D
    • ISO Q1
    • ISO 9001
    • CSA Z245.15
    • ASME B16.34
    • NACE MR0175/ISO 15156

    Temperature

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

    Literature

    Contact Sales

    Give Sales a Call

    Canada: +1 403-269-5531

    US: +1 832-912-1022

    Middle East: +971-4-552-0907

    International: +1 780-468-6789

    M – F 8:00 am – 5:00 PM

    General Inquiries

    info@streamflo.com

    Engineering & Manufacturing

    4505 74 Avenue

    Edmonton, Alberta, T6B 2H5

    +1 780-468-6789

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