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 40 results

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  1. High Temperature Check Valve Wafer Pattern

    From £46.98
    SKU: CV4677 Availability: Available
    High Temperature Check Valve Wafer Pattern
    From £46.98
    SKU: CV4677 Availability: Available
    • Disc Check Valve
    • Wafer Pattern
    • Stainless Steel body
    • Sizes 1/2" to 4"
    • Temperature up to 130°C
    • Pressure rating: PN25/40
  2. Brass Single Check Valve CR

    From £7.31
    SKU: CV4307 Availability: Available
    Brass Single Check Valve CR
    From £7.31
    SKU: CV4307 Availability: Available
    • Single Check Valve CR
    • Brass body
    • Screwed or Compression End
    • Sizes 1/2" to 2" and 15mm to 28mm
  3. Hygienic Check Valve

    From £68.38
    SKU: HC4257 Availability: Available
    Hygienic Check Valve
    From £68.38
    SKU: HC4257 Availability: Available
    • Sanitary Check Valve
    • 316 Stainless Steel body, piston & spring
    • EPDM seal
    • OD weld ends
    • Sizes: 1" to 4" 
  4. Stainless Steel Swing Check Valve Wafer Pattern

    From £61.05
    SKU: CV5171 Availability: Available
    Stainless Steel Swing Check Valve Wafer Pattern
    From £61.05
    SKU: CV5171 Availability: Available
    • Swing Check Valve
    • Stainless Steel body
    • Wafer Pattern
    • Sizes: 2" to 10"
    • Temperature: 0°C to 150°C
    • Pressure rating: 16 Bar
  5. Brass Double Check Valve CR

    From £11.10
    SKU: CV4308 Availability: Available
    Brass Double Check Valve CR
    From £11.10
    SKU: CV4308 Availability: Available
    • Double Check Valve CR 
    • Brass body
    • Screwed or Compression End
    • Sizes 1/2" to 2" and 15mm to 28mm
    • WRAS approved
  6. PVC Spring Check Valve

    From £13.32
    SKU: CV4674 Availability: Available
    PVC Spring Check Valve
    From £13.32
    SKU: CV4674 Availability: Available
    • PVC Spring Check Valve
    • PVC-U Body, EPDM 'O' rings
    • Spring Check or Foot valve available
    • Imperial Solvent Socket, Metric Solvent Socket and Screwed BSP
    • Sizes: 3/8" to 4" and 16mm to 110mm
  7. Cromax Stainless Steel Spring Check Valve Screwed BSP

    From £28.46
    SKU: CV4673 Availability: Available
    Cromax Stainless Steel Spring Check Valve Screwed BSP
    From £28.46
    SKU: CV4673 Availability: Available
    • Spring Check Valve
    • 316 or 304 Stainless Steel body
    • PTFE seat
    • Screwed BSP
    • Sizes 1/4" to 2"
    • Temperature: 20°C to 150°C
    • Pressure rating: up to 16 Bar
  8. Forged Steel Swing Check Valve Class 800

    From £28.00
    SKU: cv5750 Availability: Available
    Forged Steel Swing Check Valve Class 800
    From £28.00
    SKU: cv5750 Availability: Available
    • Swing Check Valve
    • Forged Steel body
    • Class 800
    • Socket Weld, BSPT or NPT
    • Sizes 1/2" to 2"
    • Temperature: -29°C to 425°C
    • Pressure up to 138 bar
  9. 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")
  10. PN40 Stainless Steel ARI CHECKO-D Wafer Non-return Check Valve

    From £81.90
    SKU: CV5423 Availability: Available
    PN40 Stainless Steel ARI CHECKO-D Wafer Non-return Check Valve
    From £81.90
    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
  11. Brass Spring Check Valve Screwed BSP

    From £5.54
    SKU: CV4661 Availability: Available
    Brass Spring Check Valve Screwed BSP
    From £5.54
    SKU: CV4661 Availability: Available
    • Spring Check Valve
    • Brass body
    • NBR seal
    • Screwed BSP
    • Spring Check or Foot Valve
    • Sizes 3/8" to 4"
  12. 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"
  13. 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
  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. 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"
  16. PN40 Cast Steel ARI CHECKO-V Non-return Check Valve

    From £176.80
    SKU: CV5421 Availability: Available
    PN40 Cast Steel ARI CHECKO-V Non-return Check Valve
    From £176.80
    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
  17. Stainless Steel Disc Check Valve 3 Piece

    From £40.86
    SKU: CV4651 Availability: Available
    Stainless Steel Disc Check Valve 3 Piece
    From £40.86
    SKU: CV4651 Availability: Available
    • Disc Check Valve
    • Stainless Steel 
    • 3 Piece
    • Screwed BSP or Socket Weld
    • Sizes: 1" to 4"
    • Pressure rating: PN63
  18. Ductile Iron Flanged Ball Check Valve

    From £122.59
    SKU: CV4668 Availability: Available
    Ductile Iron Flanged Ball Check Valve
    From £122.59
    SKU: CV4668 Availability: Available
    • Ball Check Valve
    • Ductile Iron body
    • NBR seat
    • Flanged PN16, PN10
    • Sizes 1 1/2" to 16"
  19. 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
  20. 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
  21. 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"
  22. PN16 Cast Iron ARI CHECKO-V Non-return Check Valve

    From £97.50
    SKU: CV5419 Availability: Available
    PN16 Cast Iron ARI CHECKO-V Non-return Check Valve
    From £97.50
    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
  23. 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
  24. Stainless Steel Swing Check Valve Screwed BSP

    From £22.20
    SKU: CV4662 Availability: Available
    Stainless Steel Swing Check Valve Screwed BSP
    From £22.20
    SKU: CV4662 Availability: Available
    • Swing Check Valve
    • Stainless Steel body
    • Screwed BSP
    • Sizes 1/4" to 3"
    • Pressure up to 600 PSI

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