Check Valves

Check Valves (Non Return Valves)

Check valves (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 48 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. PVC-U Wafer Pattern Swing Check Valve

    From £90.78
    SKU: CV5566 Availability: Available
    PVC-U Wafer Pattern Swing Check Valve
    From £90.78
    SKU: CV5566 Availability: Available
    • PVC-U Swing Check Valve
    • Wafer Pattern
    • EPDM Seals
    • Size: 63mm / 2" to 225mm / 8"
  4. API 600 ANSI Class 300 Cast Steel Swing Check Valve

    From £230.00
    SKU: CV5757 Availability: Available
    API 600 ANSI Class 300 Cast Steel Swing Check Valve
    From £230.00
    SKU: CV5757 Availability: Available
    • Swing Check Valve
    • Cast Steel
    • Flanged ANSI 300
    • Sizes: 2" to 12"
    • API 600
  5. 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" 
  6. Cast Iron Swing Check Valve Flanged PN16 - Metal Seat

    From £92.91
    SKU: CV5184 Availability: Available
    Cast Iron Swing Check Valve Flanged PN16 - Metal Seat
    From £92.91
    SKU: CV5184 Availability: Available
    • Swing Check Valve
    • Cast Iron body
    • Stainless Steel seat
    • Flanged PN16 
    • Sizes 1 1/2" up to 12"
  7. PN32 Bronze Screwed Horizontal Lift Check Valve

    From £11.15
    SKU: CV5185 Availability: Available
    PN32 Bronze Screwed Horizontal Lift Check Valve
    From £11.15
    SKU: CV5185 Availability: Available
    • Horizontal Lift Check Valve
    • Bronze Body
    • PN32 Rated
    • Screwed BSPP BS21
    • Reinforced PTFE Seat
    • Max Temperature: 198°C
    • Sizes: 1/2" to 2"
  8. 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
  9. 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
  10. PVC-U Wafer Pattern Swing Spring Check Valve

    From £128.98
    SKU: CV5567 Availability: Available
    PVC-U Wafer Pattern Swing Spring Check Valve
    From £128.98
    SKU: CV5567 Availability: Available
    • PVC-U Swing Spring Check Valve
    • Wafer Pattern
    • EPDM Seals
    • Size: 63mm / 2" to 225mm / 8"
  11. 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
  12. PVC-U Double Union Spring Check Valve

    From £16.23
    SKU: CV5565 Availability: Available
    PVC-U Double Union Spring Check Valve
    From £16.23
    SKU: CV5565 Availability: Available
    • PVC-U Spring Check Valve
    • Double Union
    • EPDM Seals
    • BSP Threaded, Imperial or Metric Solvent Socket
    • 1/2" to 3" & 20mm to 90mm
  13. Cast Steel Swing Check Valve API 600 ANSI Class 150

    From £144.00
    SKU: CV5756 Availability: Available
    Cast Steel Swing Check Valve API 600 ANSI Class 150
    From £144.00
    SKU: CV5756 Availability: Available
    • Swing Check Valve
    • Cast Steel
    • Flanged ANSI 150
    • Sizes: 2" to 12"
    • API 600
  14. 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
  15. 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
  16. ABS Double Union Spring Check Valve

    From £18.81
    SKU: CV5568 Availability: Available
    ABS Double Union Spring Check Valve
    From £18.81
    SKU: CV5568 Availability: Available
    • ABS Spring Check Valve
    • Double Union
    • EPDM Seals
    • Imperial Solvent Socket
    • 1/2" to 2"
  17. Inoxpa 72700 Hygienic Check Valve

    From £122.96
    SKU: HC5276 Availability: Available
    Inoxpa 72700 Hygienic Check Valve
    From £122.96
    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")
  18. PN40 Stainless Steel ARI CHECKO-D Wafer Non-return Check Valve

    From £87.10
    SKU: CV5423 Availability: Available
    PN40 Stainless Steel ARI CHECKO-D Wafer Non-return Check Valve
    From £87.10
    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
  19. 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"
  20. 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"
  21. Brass Wafer Spring Check Valve

    From £33.18
    SKU: CV5176 Availability: Available
    Brass Wafer Spring Check Valve
    From £33.18
    SKU: CV5176 Availability: Available
    • Spring Disc Check Valve
    • Brass body
    • Sizes: 1/2" to 4"
    • Low Cost
    • Lightweight Design
    • Fits between PN10/16 and 40 Flanges
    • Short Pattern
  22. 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"
  23. 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"
  24. PN40 Cast Steel ARI CHECKO-V Non-return Check Valve

    From £188.50
    SKU: CV5421 Availability: Available
    PN40 Cast Steel ARI CHECKO-V Non-return Check Valve
    From £188.50
    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

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