There are 191 products
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check valves
There are 191 products
Show 191 products
| Product | Brand | Connection size | Material | Seal material | Valve shape | Max pressure at 20 °C (bar) | Min pressure difference (bar) | Connection type | Article compression class | Valve bore (mm) | Kv value (m3/h) | Min temperature (°C) | Max temperature (°C) | Surface protection | Model | Height (mm) | Width (mm) | Angle of non-return valve (°) | Outer pipe diameter, all connections (mm) | Vacuum (bar) | Wrench width (mm) | Material quality | Check valve feature | Approval | Outer pipe diameter (mm) | Diameter size (mm) | With strainer basket |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 10 | 0.1 | Inner thread cylindrical... | PN 10 | 7 | 0.82 | 0 | 110 | Untreated | Straight | 34 | 13 | 0 | 0 | - | - | - | - | - | - | - | - |
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 | 10 | 0.1 | Inner thread cylindrical... | PN 10 | 5.2 | 0.45 | 0 | 110 | Untreated | Straight | 39 | 16 | 0 | 0 | - | - | - | - | - | - | - | - |
$8.87
In stock
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Tameson | 3/8 inch | Brass | NBR (nitrile rubber) | Inline spring closed | 12 | 0.02 | Inner thread cylindrical... | PN 12 | 0 | 2.11 | -20 | 100 | Untreated | Straight | 46.5 | 34.5 | 0 | 0 | - | - | - | - | - | - | - | - |
In stock
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Tameson | 1/2 inch | Brass | NBR (nitrile rubber) | Inline spring closed | 25 | 0.04 | Inner thread cylindrical... | PN 25 | 15 | 4.74 | -20 | 100 | - | Straight | 30 | 50 | 0 | 0 | 0 | 0 | - | - | - | - | - | - |
$78.23
In stock
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Tameson | 3/4 inch | Stainless steel | Teflon (PTFE) | Angle seat spring closed | 40 | 0.4 | Inner thread cylindrical... | PN 40 | 17.4 | - | -20 | 200 | Untreated | Straight | 62 | 75 | 0 | 0 | - | - | Stainless steel 316 (1.4408) | - | - | - | - | - |
$12.43
In stock
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Tameson | 1 inch | Brass | NBR (nitrile rubber) | Inline spring closed | 25 | 0.04 | Inner thread cylindrical... | PN 25 | 25 | 13.61 | -20 | 100 | - | Straight | 43 | 65 | 0 | 0 | 0 | 0 | - | - | - | - | - | - |
In stock
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Tameson | 3/4 inch | Brass | NBR (nitrile rubber) | Inline spring closed | 25 | 0.04 | Inner thread cylindrical... | PN 25 | 20 | 8.7 | -20 | 100 | - | Straight | 36.5 | 57 | 0 | 0 | 0 | 0 | - | - | - | - | - | - |
$27.18
In stock
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Mondeo | 1 inch | Stainless steel | FKM (FPM) | Inline spring closed | 16 | 0.03 | Inner thread cylindrical... | PN 16 | 25 | 18.7 | -20 | 150 | - | Straight | 53 | 83 | 0 | 0 | 0 | 0 | Stainless steel 304 (1.4301) | - | - | - | - | - |
$5.68
In stock
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Mondeo | 1/2 inch | Polyamide (PA) | NBR (nitrile rubber) | Inline spring closed | 6 | 0.03 | Inner thread cylindrical... | PN 6 | 15 | 5.8 | -25 | 90 | - | Straight | 40 | 63 | 0 | 0 | 0 | 0 | - | - | - | - | - | - |
$17.80
In stock
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Tameson | 1 1/4 inch | Brass | NBR (nitrile rubber) | Inline spring closed | 18 | 0.04 | Inner thread cylindrical... | - | 32 | 21.38 | -20 | 100 | - | Straight | 53 | 70 | 0 | 0 | 0 | 0 | - | - | - | - | - | - |
$20.36
In stock
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Mondeo | 1/4 inch | Stainless steel | FKM (FPM) | Inline spring closed | 16 | 0.03 | Inner thread cylindrical... | PN 16 | 8 | 2.5 | -20 | 150 | - | Straight | 32 | 56 | 0 | 0 | 0 | 0 | Stainless steel 304 (1.4301) | - | - | - | - | - |
$18.78
In stock
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Mondeo | 1/2 inch | Stainless steel | FKM (FPM) | Inline spring closed | 16 | 0.03 | Inner thread cylindrical... | PN 16 | 15 | 6 | -20 | 150 | - | Straight | 32 | 56 | 0 | 0 | 0 | 0 | Stainless steel 304 (1.4301) | - | - | - | - | - |
$23.96
In stock
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Mondeo | 1/2 inch | Stainless steel | FKM (FPM) | Inline spring closed | 16 | 0.03 | Inner thread cylindrical... | PN 16 | 15 | 6 | -20 | 150 | - | Straight | 32 | 56 | 0 | 0 | 0 | 0 | Stainless steel 316 (1.4401) | Reinforced pin | Drinking water, NSF ANSI 61 | - | - | - |
$23.35
In stock
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Mondeo | 3/4 inch | Stainless steel | FKM (FPM) | Inline spring closed | 16 | 0.03 | Inner thread cylindrical... | PN 16 | 20 | 10.8 | -20 | 150 | - | Straight | 44 | 67 | 0 | 0 | 0 | 0 | Stainless steel 304 (1.4301) | - | - | - | - | - |
G1/2'' Stainless Steel 304 Foot Valve FKM 0.03-16bar...900116-900921
In stock
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Tameson | 1/2 inch | Stainless steel | FKM (FPM) | Inline spring closed | - | 0.03 | Inner thread cylindrical... | - | 15 | - | -20 | 150 | - | - | 32 | - | - | - | - | - | - | - | - | 0 | 0 | Yes |
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).
