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 Valve shape Connection type Min temperature (°C) Max temperature (°C) Kv value (m3/h) Max pressure at 20 °C (bar) Min pressure difference (bar) With lock spring With balance weight Width (mm) Height (mm) Valve bore (mm) Surface protection Model Article compression class 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 Inner thread cylindrical... 0 110 0.82 10 0.1 Yes No 13 34 7 Untreated Straight PN 10 -
G1/2'' Brass Check Valve...
£7.69 (£6.36 excl vat)
In stock
Tameson 1/2 inch Brass NBR (nitrile rubber) Inline spring closed Inner thread cylindrical... -20 100 4.22 12 0.02 Yes No 34.5 47 - Untreated Straight PN 12 -
G1/8'' check valve...
£4.70 (£3.89 excl vat)
In stock
AZ Pneumatics 1/8 inch Brass FKM (FPM) Inline spring closed Inner thread cylindrical... 0 110 0.45 10 0.1 Yes No 16 39 5.2 Untreated Straight PN 10 -
G1'' Brass Check Valve NBR...
£12.29 (£10.16 excl vat)
In stock
Tameson 1 inch Brass NBR (nitrile rubber) Inline spring closed Inner thread cylindrical... -20 100 11.67 12 0.02 Yes No 47.5 60.5 - Untreated Straight PN 12 -
G1'' Brass Foot Valve NBR...
£15.78 (£13.04 excl vat)
In stock
Tameson 1 inch Brass NBR (nitrile rubber) Inline spring closed Inner thread cylindrical... -20 60 - - 0.02 - - - - - - - - Yes
G1/2'' Brass Foot Valve NBR...
£9.81 (£8.10 excl vat)
In stock
Tameson 1/2 inch Brass NBR (nitrile rubber) Inline spring closed Inner thread cylindrical... -20 60 - - 0.02 - - - - - - - - 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 Inner thread cylindrical... -20 100 7.92 12 0.02 Yes No 42 53 - Untreated Straight PN 12 -
G3/8'' Brass Check Valve...
£8.26 (£6.83 excl vat)
In stock
Tameson 3/8 inch Brass NBR (nitrile rubber) Inline spring closed Inner thread cylindrical... -20 100 2.11 12 0.02 Yes No 34.5 46.5 - Untreated Straight PN 12 -
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 Inner thread cylindrical... -20 100 29.39 10 0.02 Yes No 70.5 74 - Untreated Straight PN 10 -
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 Inner thread cylindrical... -20 60 - - 0.02 - - - - - - - - Yes
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 Inner thread cylindrical... -20 100 22.42 10 0.02 Yes No 59.5 66.5 - Untreated Straight PN 10 -
G2'' Brass Check Valve NBR...
£44.82 (£37.04 excl vat)
In stock
Tameson 2 inch Brass NBR (nitrile rubber) Inline spring closed Inner thread cylindrical... -20 100 51.4 10 0.02 Yes No 86 80 - Untreated Straight PN 10 -
G2'' Brass Foot Valve NBR...
£49.52 (£40.93 excl vat)
In stock
Tameson 2 inch Brass NBR (nitrile rubber) Inline spring closed Inner thread cylindrical... -20 60 - - 0.02 - - - - - - - - Yes
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 Inner thread cylindrical... -20 60 - - 0.02 - - - - - - - - Yes
G2-1/2'' Brass Check Valve...
£63.21 (£52.24 excl vat)
+4 days
Tameson 2 1/2 inch Brass NBR (nitrile rubber) Inline spring closed Inner thread cylindrical... -20 100 69.9 8 0.02 Yes No 102 98 - Untreated Straight PN 8 -
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.