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

Product Brand Connection size Material Seal Valve shape Min pressure difference (bar) Connection type Min temperature (°C) Max temperature (°C) Kv value (m3/h) Max pressure at 20 °C (bar) With lock spring With balance weight Width (mm) Height (mm) Valve bore (mm) Surface protection Article compression class Model With strainer basket Material quality
G1/4'' check valve...
In stock
AZ Pneumatics 1/4 inch Brass FKM (FPM) Inline spring closed 0.1 Inner thread cylindrical... 0 110 0.82 10 Yes No 13 34 7 Untreated PN 10 Straight - -
G1/2'' Brass Check Valve...
In stock
Tameson 1/2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... -20 100 4.22 12 Yes No 34.5 47 - Untreated PN 12 Straight - -
G1/8'' check valve...
In stock
AZ Pneumatics 1/8 inch Brass FKM (FPM) Inline spring closed 0.1 Inner thread cylindrical... 0 110 0.45 10 Yes No 16 39 5.2 Untreated PN 10 Straight - -
G1'' Brass Check Valve NBR...
In stock
Tameson 1 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... -20 100 11.67 12 Yes No 47.5 60.5 - Untreated PN 12 Straight - -
G1'' Brass Foot Valve NBR...
In stock
Tameson 1 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... -20 60 - - - - - - - - - - Yes -
G1/2'' Stainless Steel 304...
In stock
Tameson 1/2 inch Stainless steel FKM (FPM) Inline spring closed 0.25 Inner thread cylindrical... -20 150 - 16 Yes No 66 32 - Untreated PN 16 Straight - Stainless steel 304 (1.4301)
G1/2'' Brass Foot Valve NBR...
In stock
Tameson 1/2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... -20 60 - - - - - - - - - - Yes -
G3/4'' Brass Check Valve...
In stock
Tameson 3/4 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... -20 100 7.92 12 Yes No 42 53 - Untreated PN 12 Straight - -
G3/4'' Stainless Steel 304...
In stock
Tameson 3/4 inch Stainless steel FKM (FPM) Inline spring closed 0.35 Inner thread cylindrical... -20 150 - 16 Yes No 72 45 - Untreated PN 16 Straight - Stainless steel 304 (1.4301)
G3/8'' Brass Check Valve...
In stock
Tameson 3/8 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... -20 100 2.11 12 Yes No 34.5 46.5 - Untreated PN 12 Straight - -
G1'' Stainless Steel 304...
In stock
Tameson 1 inch Stainless steel FKM (FPM) Inline spring closed 0.35 Inner thread cylindrical... -20 150 - 16 Yes No 83 55 - Untreated PN 16 Straight - Stainless steel 304 (1.4301)
G1'' Stainless Steel 316 Y...
In stock
Tameson 1 inch Stainless steel Teflon (PTFE) Angle seat spring closed 0.4 Inner thread cylindrical... -20 200 - 40 Yes No 90 75 22.5 Untreated PN 40 Straight - Stainless steel 316 (1.4408)
G1-1/2'' Brass Check Valve...
In stock
Tameson 1 1/2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... -20 100 29.39 10 Yes No 70.5 74 - Untreated PN 10 Straight - -
G1-1/2'' Brass Foot Valve...
In stock
Tameson 1 1/2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... -20 60 - - - - - - - - - - Yes -
G3/4'' Stainless Steel 316...
In stock
Tameson 3/4 inch Stainless steel Teflon (PTFE) Angle seat spring closed 0.4 Inner thread cylindrical... -20 200 - 40 Yes No 75 62 17.4 Untreated PN 40 Straight - Stainless steel 316 (1.4408)
check valves

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 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).