Check Valves

Check Valves

Wärtsilä manufactures a range of Check Valves including, John Mills Check Valves, Shipham lift check, Swing Check & Dual Plate check valves in a range of sizes and a variety of materials to meet the demands from customers in various applications and operating conditions.

Size Range

DN15 – DN1050 / 2” - 42”

Pressure Rating

ANSI 150 up to 1500 / PN16 up to PN50

Materials

Bronze / Gunmetal / Monel®/ Duplex & Super Duplex Stainless Steels / Hastelloy®/ Inconel®/ Titanium & Composites / Nickel Aluminum Bronze / Alloy 400 / Bronze ASTM B62 / Bronze ASTM B61 / Phosphor Bronze /  Titanium / Alloy 20 / Alloy 625 / 6Mo Stainless Steel / Duplex Stainless Steel / Alloy 825 / Zirconium 

    John Mills Check Valves

    Size ranges

    DN20 – DN450 / ¾” – 18”

    Pressure Ratings

    Class 150 – 300 / PN 16, 25, 32, 40

    Configurations

    Integral Seat / Retainerless Body / Spring Assisted / Lifting Lugs for 8" / DN200 and above / Swing Check / Lift Check / Straight / Screw Cover / Bolted Cover / Union Cover / Female or Flanged

    End Connections

    Flanged / BSP P NPT Female / Socket / Union / BS4504 PN6 - 10 - 16 - 25 - 40 – 64 / BS10 Table - D - E - F - H - J - K - R - S –T / ASA Range / ANSI B16.24 - B16.5 / JIS - 5 - 10 - 16 - 20 - 25 - 40K / DIN 2501 PN6 - 10 - 16 - 25 - 40 – 64

    Options

    Soft Seated / Any Trim Material / Stainless steel, other grade of aluminium bronze or Monel® / Right Angled Lift Check / Painting / Tagging / Marking / Optional Soft seat

    Shipham Lift Check Valves

    Designed and manufactured in a wide choice of corrosion resistant materials to prevent potentially hazardous reverse flow in numerous industries.

    Size range

    DN15 – DN150 / 0.5” – 6”

    Pressure ratings

    Class 150 - 300 / PN32

    Materials

    Nickel Aluminium Bronze / Alloy 400 / Bronze ASTM B62 / Nickel Aluminium Bronze / Bronze ASTM B61 / Phosphor Bronze / Titanium / Alloy 20 / Alloy 625 / 6Mo Stainless Steel / Duplex Stainless Steel / Aly825 / Zirconium

    Design Standards

    MSS SP80 / BS 5154

    Configurations

    Bolted / Union Bonnet, Integral Seat, Plug Check Disc

    End Connections

    Screwed Female or Socket Weld / Flanged ASME B16.5 (Flat or Raised Face)

    Options

    Painting, Tagging / Marking, Spring Loaded

    Shipham Swing Check Valves

    Designed and manufactured in a wide choice of corrosion resistant materials to prevent potentially hazardous reverse flow in numerous industries.

    Size ranges

    1/4”-24” / SC01-SC65              

    Pressure Ratings

    Class 150 – 600 / PN32

    Materials

    Nickel Aluminium Bronze / Alloy 400 / Bronze ASTM B62 / Bronze ASTM B61 / Phosphor Bronze / Titanium / Alloy 20 / Alloy 625 / 6Mo Stainless Steel / Duplex Stainless Steel Alloy 825 / Zirconium

    Design Standards

    MSS SP80 / BS 5154

    Configurations

    Bolted / Union Bonnet, Renewable / Integral Seat, Swing Check Disc

    End Connections

    Flanged, Screwed Female or Socket Weld

    Options

    Painting, Tagging / Marking

    Shipham Dual Plate Check Valves

    Shipham’s range of Dual Plate Check valves have been specifically engineered to maximise the prevention of reverse flow. These Valves can be manufactured from a wide range of our specialist materials, enabling them to be used in arduous conditions where long service life and anti-corrosion and erosion is critical.

    Size ranges

    DN50 – DN1050 / 2”- 42”

    Pressure Ratings

    Class 150 – 300

    Materials

    Nickel Aluminium Bronze / Alloy 400 / Bronze ASTM B62 / Bronze ASTM B61 / Phosphor Bronze / Titanium / Alloy 20 / Alloy 625 / 6Mo Stainless Steel / Duplex Stainless Steel / Alloy 825 / Zirconium

    Design Standards

    API 594

    Configurations

    Integral Seat, Renewable Seat

    End Connections

    Wafer, Wafer Lugged, double Flanged

    Options

    Painting, Tagging / Marking

    NDE Options

    Radiography, Dye Penetrant, Ultrasonic, PMI (Positive Material Identification)

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