There are 183 products
Show 183 products
check valves
There are 183 products
Show 183 products
| Product | Brand | Connection size | Material | Seal material | Valve shape | Recommended for | Width (mm) | Connection type | Min temperature (°C) | Max temperature (°C) | Max pressure at 20 °C (bar) | Valve bore (mm) | Kv value (m3/h) | Min pressure difference (bar) | Model | Height (mm) | Article compression class | Surface protection | Vacuum (bar) | Material quality | With strainer basket | Check valve feature | Approval |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
G1/4'' check valve (0.1-10bar) brass FKMAZVNRT-1-4
In stock
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AZ Pneumatics | 1/4 inch | Brass | FKM (FPM) | Inline spring closed | Air, Fuel, Lubricant, Oil,... | 13 | Inner thread cylindrical... | 0 | 110 | 10 | 7 | 0.82 | 0.1 | Straight | 34 | PN 10 | Untreated | - | - | - | - | - |
G1/8'' check valve (0.1-10bar) brass FKMAZVNRT-1-8
In stock
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AZ Pneumatics | 1/8 inch | Brass | FKM (FPM) | Inline spring closed | Air, Fuel, Lubricant, Oil,... | 16 | Inner thread cylindrical... | 0 | 110 | 10 | 5.2 | 0.45 | 0.1 | Straight | 39 | PN 10 | Untreated | - | - | - | - | - |
In stock
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Tameson | 1/2 inch | Brass | NBR (nitrile rubber) | Inline spring closed | Air, Alcohols, Lubricant,... | 50 | Inner thread cylindrical... | -20 | 100 | 25 | 15 | 4.74 | 0.04 | Straight | 30 | PN 25 | - | 0 | - | - | - | - |
In stock
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Tameson | 3/4 inch | Brass | NBR (nitrile rubber) | Inline spring closed | Air, Alcohols, Lubricant,... | 57 | Inner thread cylindrical... | -20 | 100 | 25 | 20 | 8.7 | 0.04 | Straight | 36.5 | PN 25 | - | 0 | - | - | - | - |
$13.96
In stock
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Tameson | 1 inch | Brass | NBR (nitrile rubber) | Inline spring closed | Air, Alcohols, Lubricant,... | 65 | Inner thread cylindrical... | -20 | 100 | 25 | 25 | 13.61 | 0.04 | Straight | 43 | PN 25 | - | 0 | - | - | - | - |
$6.25
In stock
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Mondeo | 1/2 inch | Polyamide (PA) | NBR (nitrile rubber) | Inline spring closed | Air, Alcohols, Combustible... | 63 | Inner thread cylindrical... | -25 | 90 | 6 | 15 | 5.8 | 0.03 | Straight | 40 | PN 6 | - | 0 | - | - | - | - |
$88.87
In stock
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Tameson | 3/4 inch | Stainless steel | Teflon (PTFE) | Angle seat spring closed | Air, Alcohols, Carbon... | 75 | Inner thread cylindrical... | -20 | 200 | 40 | 17.4 | - | 0.4 | Straight | 62 | PN 40 | Untreated | - | Stainless steel 316 (1.4408) | - | - | - |
G1'' Brass Foot Valve NBR 0.04-25bar (0.58-363psi)931206-FCM-100
In stock
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Tameson | 1 inch | Brass | NBR (nitrile rubber) | Inline spring closed | Air, Alcohols, Lubricant,... | - | Inner thread cylindrical... | -20 | 60 | - | 25 | - | 0.04 | - | 83 | - | - | - | - | Yes | - | - |
$6.92
In stock
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Mondeo | 3/4 inch | Polyamide (PA) | NBR (nitrile rubber) | Inline spring closed | Air, Alcohols, Combustible... | 72 | Inner thread cylindrical... | -25 | 90 | 6 | 20 | 10.5 | 0.03 | Straight | 45 | PN 6 | - | 0 | - | - | - | - |
$27.91
In stock
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Mondeo | 3/4 inch | Stainless steel | NBR (nitrile rubber) | Inline spring closed | Air, Alcohols, Combustible... | 67 | Inner thread cylindrical... | -25 | 90 | 16 | 20 | 10.8 | 0.03 | Straight | 44 | PN 16 | - | 0 | Stainless steel 304 (1.4301) | - | - | - |
G1/2'' Brass Foot Valve NBR 0.04-25bar (0.58-363psi)931204-FCM-012
In stock
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Tameson | 1/2 inch | Brass | NBR (nitrile rubber) | Inline spring closed | Air, Alcohols, Lubricant,... | - | Inner thread cylindrical... | -20 | 60 | - | 15 | - | 0.04 | - | 58 | - | - | - | - | Yes | - | - |
G3/8'' Stainless Steel 304 Foot Valve FKM 0.03-16bar...900109-900920
In stock
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Tameson | 3/8 inch | Stainless steel | FKM (FPM) | Inline spring closed | Air, Carbon dioxide,... | - | Inner thread cylindrical... | -20 | 150 | - | 10 | - | 0.03 | - | 32 | - | - | - | - | Yes | - | - |
$22.43
In stock
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Mondeo | 3/8 inch | Stainless steel | FKM (FPM) | Inline spring closed | Air, Carbon dioxide,... | 56 | Inner thread cylindrical... | -20 | 150 | 16 | 10 | 3.2 | 0.03 | Straight | 32 | PN 16 | - | 0 | Stainless steel 304 (1.4301) | - | - | - |
$26.41
In stock
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Mondeo | 1/4 inch | Stainless steel | FKM (FPM) | Inline spring closed | Air, Carbon dioxide,... | 56 | Inner thread cylindrical... | -20 | 150 | 16 | 8 | 2.5 | 0.03 | Straight | 32 | PN 16 | - | 0 | Stainless steel 304 (1.4301) | - | Reinforced pin | - |
$38.80
In stock
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Mondeo | 1 inch | Stainless steel | EPDM | Inline spring closed | Alcohols, Carbon dioxide,... | 83 | Inner thread cylindrical... | -20 | 110 | 16 | 25 | 18.7 | 0.03 | Straight | 53 | PN 16 | - | 0 | Stainless steel 316 (1.4401) | - | - | Drinking water, WRAS |
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).
