brass check valves

A brass check valve allows fluid to flow only in one direction. This prevents the flow of fluid in the back direction, which could cause contamination or damage to other components. Check valves work automatically and do not need to be... Read more Read more

Product Brand Connection size Material Seal material Valve shape Min pressure difference (bar) Connection type Article compression class Kv value (m3/h) Max pressure at 20 °C (bar) Max temperature (°C) With lock spring With balance weight Min temperature (°C) Surface protection Valve bore (mm) Model Height (mm) Width (mm) With strainer basket
G1/4'' check valve...
£5.85 (£4.84 excl vat)
In stock
AZ Pneumatics 1/4 inch Brass FKM (FPM) Inline spring closed 0.1 Inner thread cylindrical... PN 10 0.82 10 110 Yes No 0 Untreated 7 Straight 34 13 -
G1/2'' Brass Check Valve...
£7.69 (£6.36 excl vat)
In stock
Tameson 1/2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 12 4.22 12 100 Yes No -20 Untreated - Straight 47 34.5 -
G1/8'' check valve...
£4.70 (£3.89 excl vat)
In stock
AZ Pneumatics 1/8 inch Brass FKM (FPM) Inline spring closed 0.1 Inner thread cylindrical... PN 10 0.45 10 110 Yes No 0 Untreated 5.2 Straight 39 16 -
G1'' Brass Check Valve NBR...
£12.29 (£10.16 excl vat)
In stock
Tameson 1 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 12 11.67 12 100 Yes No -20 Untreated - Straight 60.5 47.5 -
G1'' Brass Foot Valve NBR...
£15.78 (£13.04 excl vat)
In stock
Tameson 1 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... - - - 60 - - -20 - - - - - Yes
G3/4'' Brass Check Valve...
£9.87 (£8.16 excl vat)
In stock
Tameson 3/4 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 12 7.92 12 100 Yes No -20 Untreated - Straight 53 42 -
G3/8'' Brass Check Valve...
£8.26 (£6.83 excl vat)
In stock
Tameson 3/8 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 12 2.11 12 100 Yes No -20 Untreated - Straight 46.5 34.5 -
G1-1/4'' Brass Check Valve...
£19.42 (£16.05 excl vat)
In stock
Tameson 1 1/4 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 10 22.42 10 100 Yes No -20 Untreated - Straight 66.5 59.5 -
G1-1/2'' Brass Check Valve...
£31.60 (£26.12 excl vat)
In stock
Tameson 1 1/2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 10 29.39 10 100 Yes No -20 Untreated - Straight 74 70.5 -
G1-1/2'' Brass Foot Valve...
£35.73 (£29.53 excl vat)
In stock
Tameson 1 1/2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... - - - 60 - - -20 - - - - - Yes
G2'' Brass Check Valve NBR...
£44.82 (£37.04 excl vat)
In stock
Tameson 2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 10 51.4 10 100 Yes No -20 Untreated - Straight 80 86 -
G3/4'' Brass Foot Valve NBR...
£12.22 (£10.10 excl vat)
In stock
Tameson 3/4 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... - - - 60 - - -20 - - - - - Yes
G2'' Brass Foot Valve NBR...
£49.52 (£40.93 excl vat)
In stock
Tameson 2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... - - - 60 - - -20 - - - - - Yes
G2-1/2'' Brass Check Valve...
£63.21 (£52.24 excl vat)
+3 days
Tameson 2 1/2 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 8 69.9 8 100 Yes No -20 Untreated - Straight 98 102 -
G3'' Brass Check Valve NBR...
£100.00 (£82.64 excl vat)
+3 days
Tameson 3 inch Brass NBR (nitrile rubber) Inline spring closed 0.02 Inner thread cylindrical... PN 8 98.49 8 100 Yes No -20 Untreated - Straight 103 125 -
brass check valves

brass check valves

A brass check valve allows fluid to flow only in one direction. This prevents the flow of fluid in the back direction, which could cause contamination or damage to other components. 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). The housing of these valves is made out of brass, which is a cost-effective alternative to stainless steel for many applications. To further understand check valves, read our technical article or contact us.

Brass housing

Brass is used as the housing material. Brass is an alloy of copper and zinc and has great mechanical properties. Brass check valves are known for their durability and can be used with drinking water, gas, mineral oils, compressed air and many other non-aggressive media. But they are not suitable for use with salt water or distilled water due to the risk of dezincification. Dezincification reduces the mechanical strength of the brass by causing the zinc to be removed from the alloy resulting in a porous structure.