Check Valves

Check Valves

Check valves (commonly known as non-return valves); provide engineers and installers with an inexpensive and reliable method to prevent the backward flow of a liquid or gas.

At Valves Online we provide you with an extensive range of check valves, available in a wide range of sizes, materials and design / closing operation. With numerous applications in process, industrial, domestic and drinking water systems all requiring some form of check or non-return valve, correct selection is vital.

Common types of check valve include: Barrel Spring, Swing, Disc (Foot Valves), Ball, Wafer, Wafer Pattern and Dual Plate check valves.

Showing 1-24 of 39 results

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  1. Axial Disc Double Check Valve

    From £363.36
    SKU: CV5730 Availability: Available
    Axial Disc Double Check Valve
    From £363.36
    SKU: CV5730 Availability: Available
    • Cast Iron body
    • Flanged PN16
    • Sizes 2" up to 6"
    • Anti Hammer
    • Temperature -10°C to 120°C
  2. PN40 Stainless Steel ARI CHECKO-D Wafer Non-return Check Valve

    From £61.00
    SKU: CV5423 Availability: Available
    PN40 Stainless Steel ARI CHECKO-D Wafer Non-return Check Valve
    From £61.00
    SKU: CV5423 Availability: Available
    • PN40 Stainless Steel ARI CHECKO-D Wafer Non-return Check Valve
    • Fig. 55.001 Wafer Pattern Check Valve with metallic sealing
    • PN40 Rated
    • Wafer Pattern for Clamping between flanges
    • Stainless Steel (1.4408) Body
    • Up to 400°C Temperature Rated
    • DN15 to DN200 (½” to 8”) Available
  3. PN40 Stainless Steel ARI CHECKO-V Y Pattern Non-return Check Valve

    From £225.00
    SKU: CV5422 Availability: Available
    PN40 Stainless Steel ARI CHECKO-V Y Pattern Non-return Check Valve
    From £225.00
    SKU: CV5422 Availability: Available
    • PN40 Stainless Steel ARI CHECKO-V Y Pattern Non-return Check Valve
    • Fig. 55.039 Y Pattern Check Valve with metallic sealing
    • PN40 Flanged Connection
    • Stainless Steel (1.4408) Body
    • Up to 400°C Temperature Rated
    • DN15 to DN300 (½” to 12”) Available
  4. PN40 Cast Steel ARI CHECKO-V Non-return Check Valve

    From £132.00
    SKU: CV5421 Availability: Available
    PN40 Cast Steel ARI CHECKO-V Non-return Check Valve
    From £132.00
    SKU: CV5421 Availability: Available
    • PN40 Cast Steel ARI CHECKO-V Non-return Check Valve
    • Fig. 35.003 Check Valve with metallic sealing
    • PN40 Flanged Connection
    • Cast Steel (1.0619+N) Body
    • Up to 450°C Temperature Rated
    • DN15 to DN300 (½” to 12”) Available
  5. PN25 Nodular Iron ARI CHECKO-V Non-return Check Valve

    From £116.00
    SKU: CV5420 Availability: Available
    PN25 Nodular Iron ARI CHECKO-V Non-return Check Valve
    From £116.00
    SKU: CV5420 Availability: Available
    • PN25 Nodular Iron ARI CHECKO-V Non-return Check Valve
    • Fig. 23.003 Check Valve with metallic sealing
    • PN25 Flanged Connection
    • Nodular Iron (EN-JS1049) Body
    • Up to 350°C Temperature Rated
    • DN15 to DN150 (½” to 6”) Available
  6. PN16 Cast Iron ARI CHECKO-V Non-return Check Valve

    From £73.00
    SKU: CV5419 Availability: Available
    PN16 Cast Iron ARI CHECKO-V Non-return Check Valve
    From £73.00
    SKU: CV5419 Availability: Available
    • PN16 Cast Iron ARI CHECKO-V Non-return Check Valve
    • Fig. 12.003 Check Valve with metallic sealing
    • PN16 Flanged Connection
    • Cast Iron (EN-JL1040) Body
    • Up to 300°C Temperature Rated
    • DN15 to DN300 (½” to 12”) Available
  7. Inoxpa 72700 Hygienic Check Valve

    From £93.15
    SKU: HC5276 Availability: Available
    Inoxpa 72700 Hygienic Check Valve
    From £93.15
    SKU: HC5276 Availability: Available
    • Sanitary Check Valve
    • Stainless Steel AISI 316L
    • Clamp or weld end connections
    • EPDM Seal according to FDA 177.2600A
    • Sizes: DN25 (1") to DN100 (4")
  8. Stainless Steel Spring Check Valve High Pressure Screwed BSP

    From £18.48
    SKU: CV4680 Availability: Available
    Stainless Steel Spring Check Valve High Pressure Screwed BSP
    From £18.48
    SKU: CV4680 Availability: Available
    • Spring Check Valve
    • High Pressure
    • Stainless Steel body
    • Screwed BSP
    • Sizes 1/2" to 2"
    • Max pressure 63 Bar
  9. Cast Iron Swing Check Valve Flanged PN16 Lever + Weight

    From £201.57
    SKU: CV5182 Availability: Available
    Cast Iron Swing Check Valve Flanged PN16 Lever + Weight
    From £201.57
    SKU: CV5182 Availability: Available
    • Swing Check Valve
    • Lever + Weight 
    • Cast Iron body
    • Flanged PN16 
    • Sizes 2" up to 12"
  10. Ductile Iron Swing Check Valve Flanged PN16

    From £183.33
    SKU: CV5181 Availability: Available
    Ductile Iron Swing Check Valve Flanged PN16
    From £183.33
    SKU: CV5181 Availability: Available
    • Swing Check Valve
    • Ductile Iron body
    • Flanged PN16
    • Sizes 2" up to 8"
    • WRAS approved
  11. Cast Iron Swing Check Valve Flanged PN16

    From £71.42
    SKU: CV5179 Availability: Available
    Cast Iron Swing Check Valve Flanged PN16
    From £71.42
    SKU: CV5179 Availability: Available
    • Swing Check Valve
    • Cast Iron body
    • EPDM seat
    • Flanged PN16 
    • Sizes 1 1/2" up to 12"
  12. Carbon Steel Swing Check Valve Wafer Pattern

    From £70.67
    SKU: CV5172 Availability: Available
    Carbon Steel Swing Check Valve Wafer Pattern
    From £70.67
    SKU: CV5172 Availability: Available
    • Swing Check Valve
    • Carbon Steel body
    • Wafer Pattern 
    • Sizes: 1 1/2" to 12"
  13. Cast Iron Dual Plate Check Valve Wafer Pattern

    From £48.22
    SKU: CV5177 Availability: Available
    Cast Iron Dual Plate Check Valve Wafer Pattern
    From £48.22
    SKU: CV5177 Availability: Available
    • Dual Plate Check Valve
    • Cast Iron body
    • EPDM seal
    • Wafer Pattern 
    • Sizes: 2" to 24"
    • WRAS approved (2" to 12" only)
  14. Stainless Steel Spring Disc Check Valve Wafer Pattern

    From £13.32
    SKU: CV5175 Availability: Available
    Stainless Steel Spring Disc Check Valve Wafer Pattern
    From £13.32
    SKU: CV5175 Availability: Available
    • Spring Disc Check Valve
    • Stainless Steel body
    • Wafer Pattern
    • Sizes: 1/2" to 4"
  15. Stainless Steel Swing Spring Check Valve Wafer Pattern

    From £97.54
    SKU: CV5173 Availability: Available
    Stainless Steel Swing Spring Check Valve Wafer Pattern
    From £97.54
    SKU: CV5173 Availability: Available
    • Swing Spring Check Valve
    • Stainless Steel body
    • Wafer Pattern
    • Sizes: 1 1/4" to 10"
  16. Cast Iron Flanged Axial Disc Check Valve

    From £123.02
    SKU: CV5183 Availability: Available
    Cast Iron Flanged Axial Disc Check Valve
    From £123.02
    SKU: CV5183 Availability: Available
    • Axial Disc Check Valve
    • Cast Iron body
    • Flanged 
    • Sizes 2" up to 12"
    • WRAS approved
  17. Carbon Steel Swing Spring Check Valve Wafer Pattern

    From £92.52
    SKU: CV5174 Availability: Available
    Carbon Steel Swing Spring Check Valve Wafer Pattern
    From £92.52
    SKU: CV5174 Availability: Available
    • Swing Spring Check Valve
    • Wafer Pattern
    • Carbon Steel body
    • Sizes: 2" to 8"
    • Temperature: -20°C to 100°C
  18. Stainless Steel Dual Plate Check Valve Wafer Pattern

    From £111.00
    SKU: CV5178 Availability: Available
    Stainless Steel Dual Plate Check Valve Wafer Pattern
    From £111.00
    SKU: CV5178 Availability: Available
    • Dual Plate Check Valve
    • Stainless Steel body
    • Wafer Pattern
    • Sizes: 2" to 6"
    • Pressure rating: 16 Bar
    • Temperature: -20°C to 150°C
  19. Bronze Spring Disc Check Valve Wafer Pattern

    From £24.11
    SKU: CV5176 Availability: Available
    Bronze Spring Disc Check Valve Wafer Pattern
    From £24.11
    SKU: CV5176 Availability: Available
    • Spring Disc Check Valve
    • Bronze body
    • Wafer Pattern
    • Sizes: 1/2" to 4"
    • Pressure rating: 16 Bar
    • Temperature: 0°C to 250°C
  20. Cast Steel Flanged Swing Check Valve

    From £205.29
    SKU: CV4678 Availability: Available
    Cast Steel Flanged Swing Check Valve
    From £205.29
    SKU: CV4678 Availability: Available
    • Swing Check Valve
    • Cast Steel body
    • Flanged ANSI 150 or ANSI 300,
    • Sizes 2" to 8"
  21. High Temperature Check Valve Screwed BSP

    From £77.76
    SKU: CV4676 Availability: Available
    High Temperature Check Valve Screwed BSP
    From £77.76
    SKU: CV4676 Availability: Available
    • Disc Check Valve
    • Stainless Steel body
    • Metal to Metal seated
    • Screwed BSP
    • Sizes 1/4" to 2"
    • Temperature up to 250°C
    • Suitable for use with steam and hot condensate
  22. PVC Swing Check Valve with Mounting Kit

    From £94.25
    SKU: CV4675 Availability: Available
    PVC Swing Check Valve with Mounting Kit
    From £94.25
    SKU: CV4675 Availability: Available
    • PVC Swing Check Valve
    • PVC-U body with EPDM 'O' rings
    • Mounting Kit Included
    • Sizes: 63mm to 250mm
  23. Cast Iron Flanged Disc Check Valve

    From £104.82
    SKU: CV4667 Availability: Available
    Cast Iron Flanged Disc Check Valve
    From £104.82
    SKU: CV4667 Availability: Available
    • Disc Check Valve 
    • Cast Iron body
    • EPDM seat
    • Flanged PN16
    • Standard or Foot Valve
    • Sizes 2" to 12"
  24. Stainless Steel Flanged Swing Check Valve

    From £111.00
    SKU: CV4665 Availability: Available
    Stainless Steel Flanged Swing Check Valve
    From £111.00
    SKU: CV4665 Availability: Available
    • Swing Check Valve 
    • Stainless Steel body
    • Metal seat
    • Flanged PN16 or ANSI 150
    • Sizes 1/2" to 8" and 1/2" to 6"

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