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Check Valves（Material：Brass）
Check valves for fluids are a type of valves which allow fluids to flow in one direction, but automatically close when the flow reverses. They are also called non-return valves or one-way valves. They can prevent the backflow securely and open with small differential pressure. They are applied to piping systems where the backflow prevention is required, frequent open/close are expected, some restrictions exist around the pipings, etc. To install, there are screw-in connection type to screw in the check valve, and flangeless type that clamps the entire check valve with pipes. Furthermore, they are divided into small diameter valves or large diameter valves. Materials of the main body are copper alloy, stainless steel, fluoropolymer, plastic, etc. Sealing materials vary depending on the application; metal is used for places where the temperature becomes high due to steam, etc., and rubber is for places under low temperatures such as hot or cold water.
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Specification/Dimensions
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Applicable Fluid
- Water
- Air
- Oil
- Gas
- Chemical
- Others
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Type
- Swing Type
- Lift Type
- Spring Type (In-line)
- Wafer Type
- Others
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Material
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Max. Operating Pressure(MPa)
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Nominal Pressure
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Supply Side, Connection Type
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Supply Side, Plumbing Thread Nominal
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Control Side, Connection Type
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Control Side, Plumbing Thread Nominal
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Supply Side, Tube Flange Nominal
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Control Side, Tube Flange Nominal
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Cracking Pressure(MPa)
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ASOH
The check valve body is a dual external-thread type.
[Features]
· For helping save space when piping.
· The simple poppet structure ensures no leaks from back pressure.From: ฿ 578.40 Days to Ship: 
Same day
Same day
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You can add up to 6 items per a category to the compare list.
Until 31/03/2026
Until 31/03/2026KOYO
Made using cadmium-free brass material.
[Features]
· A fitting in which a fitting and check valve are integrated.
· A useful fitting for saving space and cost.
· The spring poppet check valve provides flow direction to the piping systemFrom: ฿ 494.68 Special Price Days to Ship:
Same day
Same day
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You can add up to 6 items per a category to the compare list.
ASOH
The check valve main body is a dual-thread type.
[Features]
· For helping space-saving when piping.
· The simple poppet structure ensures no leaks from back pressure.From: ฿ 801.35 Days to Ship:
3 Day(s)
3 Day(s)
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You can add up to 6 items per a category to the compare list.
KOYO
Cadmium-free brass material is used. [Features]
· Complete fitting with a joint and a check valve.
· Advantageous fitting for the space and cost perspectives.
· The spring poppet check valve gives the flow direction to the piping systemFrom: ฿ 631.18 Days to Ship:
21 Day(s)
21 Day(s)
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You can add up to 6 items per a category to the compare list.
Double-Ended Male Check Valve - Brass Type
SNL FITTING
[Specifications]
- Type: Swing type
- Material: Brass
- Supply Side, Plumbing Thread Nominal: 1/4B
- Supply Side, Connection Type: R
- Control Side, Connection Type: R
- Control Side, Plumbing Thread Nominal: 1/4B
- Max. Operating Pressure (MPa): 70
- Wrench Flats: 14From: ฿ 100.00 Days to Ship:
Quote
Quote
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You can add up to 6 items per a category to the compare list.
Double-Ended Female Check Valve - Brass Type
SNL FITTING
[Specifications]
- Type: Swing type
- Material: Brass
- Supply Side, Plumbing Thread Nominal: 1/4B
- Supply Side, Connection Type: Rc
- Control Side, Connection Type: Rc
- Control Side, Plumbing Thread Nominal: 1/4B
- Max. Operating Pressure (MPa): 70
- Wrench Flats: 17From: ฿ 100.00 Days to Ship:
Quote
Quote
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ESCO
Machine tools, cleaning machines, various hydraulic equipment, analyzers, boilers, burners, construction machinery, drip prevention, gas mixers, fluid control systems.From: ฿ 1,072.00 Days to Ship:
3 Day(s)
3 Day(s)
| Brand |
|---|
| Product Series |
| CAD |
| From |
| Days to Ship |
| Applicable Fluid |
| Type |
| Material |
| Max. Operating Pressure(MPa) |
| Nominal Pressure |
| Supply Side, Connection Type |
| Supply Side, Plumbing Thread Nominal |
| Control Side, Connection Type |
| Control Side, Plumbing Thread Nominal |
| Supply Side, Tube Flange Nominal |
| Control Side, Tube Flange Nominal |
| Cracking Pressure(MPa) |
You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2026 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | |
| Brand | ASOH | KOYO | ASOH | KOYO | SNL FITTING | SNL FITTING | ESCO |
| Product Series | |||||||
| CAD |
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| From | ฿ 578.40 | ฿ 494.68 Special Price On Sale Until 31/03/2026 | ฿ 801.35 | ฿ 631.18 | ฿ 100.00 | ฿ 100.00 | ฿ 1,072.00 |
| Days to Ship | Same day | Same day | 3 Day(s) | 21 Day(s) | Quote | Quote | 3 Day(s) |
| Applicable Fluid | Water / Air | Air | Water / Air | Air | - | - | Oil / Gas |
| Type | Spring Type (In-line) | Spring Type (In-line) | Spring Type (In-line) | Spring Type (In-line) | Swing Type | Swing Type | - |
| Material | Brass | Brass | Brass | Brass | Brass | Brass | Brass |
| Max. Operating Pressure(MPa) | 2 | 21 | 2 | 21 | 70 | 70 | 4.9 |
| Nominal Pressure | No Standard, Others | No Standard, Others | No Standard, Others | No Standard, Others | - | - | - |
| Supply Side, Connection Type | Rc (R) | Rc (R) | Rc (R) | Rc (R) | Rc (R) | Rc (R) | Rc (R) |
| Supply Side, Plumbing Thread Nominal | 1/2B ～ 3/8B | 1/4B ～ 1/8B | 1/2B ～ 3/8B | 1/4B | 1/4B | 1/4B | 1/2B ～ 3/8B |
| Control Side, Connection Type | Rc (R) | Rc (R) | Rc (R) | Rc (R) | Rc (R) | Rc (R) | Rc (R) |
| Control Side, Plumbing Thread Nominal | 1/2B ～ 3/8B | 1/4B ～ 1/8B | 1/2B ～ 3/8B | 1/4B | 1/4B | 1/4B | 1/2B ～ 3/8B |
| Supply Side, Tube Flange Nominal | - | - | - | - | - | - | - |
| Control Side, Tube Flange Nominal | - | - | - | - | - | - | - |
| Cracking Pressure(MPa) | 0.007 | 0.05 ～ 0.3 | 0.007 | 0.05 ～ 0.3 | - | - | 0.007 |
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