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.
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High Temperature Check Valve Wafer Pattern
From £46.98SKU: CV4677 Availability: AvailableHigh Temperature Check Valve Wafer Pattern
From £46.98SKU: 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
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Brass Single Check Valve CR
From £7.31SKU: CV4307 Availability: AvailableBrass Single Check Valve CR
From £7.31SKU: CV4307 Availability: Available- Single Check Valve CR
- Brass body
- Screwed or Compression End
- Sizes 1/2" to 2" and 15mm to 28mm
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Hygienic Check Valve
From £68.38SKU: HC4257 Availability: AvailableHygienic Check Valve
From £68.38SKU: HC4257 Availability: Available- Sanitary Check Valve
- 316 Stainless Steel body, piston & spring
- EPDM seal
- OD weld ends
- Sizes: 1" to 4"
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Cast Iron Swing Check Valve Flanged PN16 - Metal Seat
From £92.91SKU: CV5184 Availability: AvailableCast Iron Swing Check Valve Flanged PN16 - Metal Seat
From £92.91SKU: CV5184 Availability: Available- Swing Check Valve
- Cast Iron body
- Stainless Steel seat
- Flanged PN16
- Sizes 1 1/2" up to 12"
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Stainless Steel Swing Check Valve Wafer Pattern
From £61.05SKU: CV5171 Availability: AvailableStainless Steel Swing Check Valve Wafer Pattern
From £61.05SKU: 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
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Brass Double Check Valve CR
From £11.10SKU: CV4308 Availability: AvailableBrass Double Check Valve CR
From £11.10SKU: CV4308 Availability: Available- Double Check Valve CR
- Brass body
- Screwed or Compression End
- Sizes 1/2" to 2" and 15mm to 28mm
- WRAS approved
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PVC Spring Check Valve
From £13.32SKU: CV4674 Availability: AvailablePVC Spring Check Valve
From £13.32SKU: 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
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Cromax Stainless Steel Spring Check Valve Screwed BSP
From £28.46SKU: CV4673 Availability: AvailableCromax Stainless Steel Spring Check Valve Screwed BSP
From £28.46SKU: 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
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Forged Steel Swing Check Valve Class 800
From £28.00SKU: cv5750 Availability: AvailableForged Steel Swing Check Valve Class 800
From £28.00SKU: 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
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Inoxpa 72700 Hygienic Check Valve
From £93.15SKU: HC5276 Availability: AvailableInoxpa 72700 Hygienic Check Valve
From £93.15SKU: 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")
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PN40 Stainless Steel ARI CHECKO-D Wafer Non-return Check Valve
From £81.90SKU: CV5423 Availability: AvailablePN40 Stainless Steel ARI CHECKO-D Wafer Non-return Check Valve
From £81.90SKU: 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
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Brass Spring Check Valve Screwed BSP
From £5.54SKU: CV4661 Availability: AvailableBrass Spring Check Valve Screwed BSP
From £5.54SKU: CV4661 Availability: Available- Spring Check Valve
- Brass body
- NBR seal
- Screwed BSP
- Spring Check or Foot Valve
- Sizes 3/8" to 4"
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Stainless Steel Flanged Swing Check Valve
From £111.00SKU: CV4665 Availability: AvailableStainless Steel Flanged Swing Check Valve
From £111.00SKU: 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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Bronze Spring Disc Check Valve Wafer Pattern
From £24.11SKU: CV5176 Availability: AvailableBronze Spring Disc Check Valve Wafer Pattern
From £24.11SKU: 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
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Stainless Steel Spring Disc Check Valve Wafer Pattern
From £13.32SKU: CV5175 Availability: AvailableStainless Steel Spring Disc Check Valve Wafer Pattern
From £13.32SKU: CV5175 Availability: Available- Spring Disc Check Valve
- Stainless Steel body
- Wafer Pattern
- Sizes: 1/2" to 4"
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Cast Iron Swing Check Valve Flanged PN16 Lever + Weight
From £201.57SKU: CV5182 Availability: AvailableCast Iron Swing Check Valve Flanged PN16 Lever + Weight
From £201.57SKU: CV5182 Availability: Available- Swing Check Valve
- Lever + Weight
- Cast Iron body
- Flanged PN16
- Sizes 2" up to 12"
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PN40 Cast Steel ARI CHECKO-V Non-return Check Valve
From £176.80SKU: CV5421 Availability: AvailablePN40 Cast Steel ARI CHECKO-V Non-return Check Valve
From £176.80SKU: 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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Stainless Steel Disc Check Valve 3 Piece
From £40.86SKU: CV4651 Availability: AvailableStainless Steel Disc Check Valve 3 Piece
From £40.86SKU: CV4651 Availability: Available- Disc Check Valve
- Stainless Steel
- 3 Piece
- Screwed BSP or Socket Weld
- Sizes: 1" to 4"
- Pressure rating: PN63
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Ductile Iron Flanged Ball Check Valve
From £122.59SKU: CV4668 Availability: AvailableDuctile Iron Flanged Ball Check Valve
From £122.59SKU: CV4668 Availability: Available- Ball Check Valve
- Ductile Iron body
- NBR seat
- Flanged PN16, PN10
- Sizes 1 1/2" to 16"
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High Temperature Check Valve Screwed BSP
From £77.76SKU: CV4676 Availability: AvailableHigh Temperature Check Valve Screwed BSP
From £77.76SKU: 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
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Cast Iron Flanged Axial Disc Check Valve
From £123.02SKU: CV5183 Availability: AvailableCast Iron Flanged Axial Disc Check Valve
From £123.02SKU: CV5183 Availability: Available- Axial Disc Check Valve
- Cast Iron body
- Flanged
- Sizes 2" up to 12"
- WRAS approved
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Cast Iron Swing Check Valve Flanged PN16 - EPDM Seat
From £71.42SKU: CV5179 Availability: AvailableCast Iron Swing Check Valve Flanged PN16 - EPDM Seat
From £71.42SKU: CV5179 Availability: Available- Swing Check Valve
- Cast Iron body
- EPDM seat
- Flanged PN16
- Sizes 1 1/2" up to 12"
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PN16 Cast Iron ARI CHECKO-V Non-return Check Valve
From £97.50SKU: CV5419 Availability: AvailablePN16 Cast Iron ARI CHECKO-V Non-return Check Valve
From £97.50SKU: 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
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Axial Disc Double Check Valve
From £363.36SKU: CV5730 Availability: AvailableAxial Disc Double Check Valve
From £363.36SKU: CV5730 Availability: Available- Cast Iron body
- Flanged PN16
- Sizes 2" up to 6"
- Anti Hammer
- Temperature -10°C to 120°C
