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 Max pressure at 20 °C (bar) Seal material Valve shape Recommended for Connection type Min pressure difference (bar) Valve bore (mm) Kv value (m3/h) Min temperature (°C) Max temperature (°C) Model Height (mm) Article compression class Surface protection Width (mm) Vacuum (bar) With strainer basket
G1/4'' check valve...
Not in stock
AZ Pneumatics 1/4 inch Brass 10 FKM (FPM) Inline spring closed Air, Fuel, Lubricant, Oil,... Inner thread cylindrical... 0.1 7 0.82 0 110 Straight 34 PN 10 Untreated 13 - -
G1/8'' check valve...
In stock
AZ Pneumatics 1/8 inch Brass 10 FKM (FPM) Inline spring closed Air, Fuel, Lubricant, Oil,... Inner thread cylindrical... 0.1 5.2 0.45 0 110 Straight 39 PN 10 Untreated 16 - -
G1/2'' Brass Check Valve...
In stock
Tameson 1/2 inch Brass 25 NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 15 4.74 -20 100 Straight 30 PN 25 - 50 0 -
G3/4'' Brass Check Valve...
In stock
Tameson 3/4 inch Brass 25 NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 20 8.7 -20 100 Straight 36.5 PN 25 - 57 0 -
G1'' Brass Check Valve NBR...
In stock
Tameson 1 inch Brass 25 NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 25 13.61 -20 100 Straight 43 PN 25 - 65 0 -
G1'' Brass Foot Valve NBR...
In stock
Tameson 1 inch Brass - NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 25 - -20 60 - 83 - - - - Yes
In stock
Tameson 1/2 inch Brass - NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 15 - -20 60 - 58 - - - - Yes
G1 1/4'' Brass Check Valve...
+28 days
Tameson 1 1/4 inch Brass 18 NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 32 21.38 -20 100 Straight 53 - - 70 0 -
G3/4'' Brass Foot Valve NBR...
+40 days
Tameson 3/4 inch Brass - NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 20 - -20 60 - 70.5 - - - - Yes
G1 1/2'' Brass Check Valve...
+28 days
Tameson 1 1/2 inch Brass 18 NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 40 31.63 -20 100 Straight 64.5 - - 75.5 0 -
G2'' Brass Check Valve NBR...
+28 days
Tameson 2 inch Brass 18 NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 50 46.7 -20 100 Straight 79.5 - - 81.5 0 -
G2 1/2'' Brass Check Valve...
+28 days
Tameson 2 1/2 inch Brass 12 NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 65 78.77 -20 100 Straight 104 - - 104 0 -
G1 1/2'' Chromed Brass...
+28 days
Tameson 1 1/2 inch Brass 18 NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 40 35.3 -20 100 Straight 62.5 - Chromium-plated 93 0 -
G2'' Chromed Brass Check...
+28 days
Tameson 2 inch Brass 18 NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 50 50.6 -20 100 Straight 77.5 - Chromium-plated 100 0 -
G3'' Brass Check Valve NBR...
+28 days
Tameson 3 inch Brass 12 NBR (nitrile rubber) Inline spring closed Air, Alcohols, Lubricant,... Inner thread cylindrical... 0.04 80 111.5 -20 100 Straight 124 - - 113 0 -
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.