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Max pressure at 20 °C (bar)

With strainer basket

Max temperature (°C)

Min temperature (°C)

With lock spring

With balance weight

Surface protection

check valves

Check valves (also called non-return valve, one-way valve) are used to allow the flow of fluid in only one direction. They prevent the flow of fluid in the other direction.  Check valves work automatically and do not need to be operated. Most... Read more Read more

There are 42 products
Show 42 products
Product Brand Connection size Material Seal Max pressure at 20 °C (bar) Valve shape Connection type Min. pressure difference (bar) Kv value Max temperature (°C) Min temperature (°C) Article compression class With lock spring With balance weight Valve bore (mm) Surface protection Model Depth (mm) Width (mm) Height (mm) With strainer basket Material quality
G1/4'' check valve...
£5.85 (£4.84 excl vat)
In stock
AZ Pneumatics 1/4 inch Brass FKM (FPM) 10 Inline spring closed Inner thread cylindrical... 0.1 0.82 110 0 PN 10 Yes No 7 Untreated Straight 15 13 34 - -
G1/2'' Brass Check Valve...
£8.04 (£6.64 excl vat)
In stock
Tameson 1/2 inch Brass NBR (nitrile rubber) 12 Inline spring closed Inner thread cylindrical... 0.02 4.22 100 -20 PN 12 Yes No - Untreated Straight 34.5 34.5 47 - -
G1/8'' check valve...
£4.70 (£3.89 excl vat)
In stock
AZ Pneumatics 1/8 inch Brass FKM (FPM) 10 Inline spring closed Inner thread cylindrical... 0.1 0.45 110 0 PN 10 Yes No 5.2 Untreated Straight 18 16 39 - -
G1/2'' Brass Foot Valve NBR...
£10.15 (£8.39 excl vat)
In stock
Tameson 1/2 inch Brass NBR (nitrile rubber) - Inline spring closed Inner thread cylindrical... 0.02 - 60 -20 - - - - - - - - - Yes -
G1'' Brass Check Valve NBR...
£13.78 (£11.39 excl vat)
In stock
Tameson 1 inch Brass NBR (nitrile rubber) 12 Inline spring closed Inner thread cylindrical... 0.02 11.67 100 -20 PN 12 Yes No - Untreated Straight 47.5 47.5 60.5 - -
G1/2'' Stainless Steel 304...
£26.43 (£21.84 excl vat)
In stock
Tameson 1/2 inch Stainless steel FKM (FPM) 16 Inline spring closed Inner thread cylindrical... 0.25 - 150 -20 PN 16 Yes No - Untreated Straight 32 66 32 - Stainless steel 304 (1.4301)
G1'' Brass Foot Valve NBR...
£17.28 (£14.28 excl vat)
In stock
Tameson 1 inch Brass NBR (nitrile rubber) - Inline spring closed Inner thread cylindrical... 0.02 - 60 -20 - - - - - - - - - Yes -
G3/8'' Stainless Steel 304...
£25.28 (£20.89 excl vat)
In stock
Tameson 3/8 inch Stainless steel FKM (FPM) 16 Inline spring closed Inner thread cylindrical... 0.25 - 150 -20 PN 16 Yes No - Untreated Straight 32 66 32 - Stainless steel 304 (1.4301)
G3/4'' Stainless Steel 304...
£34.47 (£28.49 excl vat)
In stock
Tameson 3/4 inch Stainless steel FKM (FPM) 16 Inline spring closed Inner thread cylindrical... 0.35 - 150 -20 PN 16 Yes No - Untreated Straight 45 72 45 - Stainless steel 304 (1.4301)
G3/8'' Brass Check Valve...
£8.04 (£6.64 excl vat)
In stock
Tameson 3/8 inch Brass NBR (nitrile rubber) 12 Inline spring closed Inner thread cylindrical... 0.02 2.11 100 -20 PN 12 Yes No - Untreated Straight 34.5 34.5 46.5 - -
G1'' Stainless Steel 316 Y...
In stock
Tameson 1 inch Stainless steel Teflon (PTFE) 40 Angle seat spring closed Inner thread cylindrical... 0.4 - 200 -20 PN 40 Yes No 22.5 Untreated Straight 43 90 75 - Stainless steel 316 (1.4408)
G3/4'' Brass Check Valve...
£10.33 (£8.54 excl vat)
In stock
Tameson 3/4 inch Brass NBR (nitrile rubber) 12 Inline spring closed Inner thread cylindrical... 0.02 7.92 100 -20 PN 12 Yes No - Untreated Straight 42 42 53 - -
G1'' Stainless Steel 304...
In stock
Tameson 1 inch Stainless steel FKM (FPM) 16 Inline spring closed Inner thread cylindrical... 0.35 - 150 -20 PN 16 Yes No - Untreated Straight 55 83 55 - Stainless steel 304 (1.4301)
G3/4'' Stainless Steel 316...
£71.26 (£58.89 excl vat)
In stock
Tameson 3/4 inch Stainless steel Teflon (PTFE) 40 Angle seat spring closed Inner thread cylindrical... 0.4 - 200 -20 PN 40 Yes No 17.4 Untreated Straight 37 75 62 - Stainless steel 316 (1.4408)
G1-1/2'' Brass Foot Valve...
£34.00 (£28.10 excl vat)
In stock
Tameson 1 1/2 inch Brass NBR (nitrile rubber) - Inline spring closed Inner thread cylindrical... 0.02 - 60 -20 - - - - - - - - - Yes -
check valves

check valves | tameson.co.uk

Check valves (also called non-return valve, one-way valve) are used to allow the flow of fluid in only one direction. They prevent the flow of fluid in the other direction.  Check valves work automatically and do not need to be operated. Most available types have a small spring to close the valve, the medium pressure in the forward direction opens the valve. Note that there is a minimum pressure required to open the valve (usually called cracking pressure).