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- แจ้งวันหยุดทำการเทศกาลปีใหม่ 2569 | Notice New Year Holiday 2026 > คลิก
Check Valves（Nominal Pressure：No Standard, Others）
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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![Check Valve (Inline Chuck) [for Steam, Hot Water and Cold Water] CVC3 Type](//th.misumi-ec.com/en/linked/material/mech/MWK1/PHOTO/221005237024.jpg?$product_view_b$)
Check Valve (Inline Chuck) [for Steam, Hot Water and Cold Water] CVC3 Type
MIYAWAKI
[Features]
· Prevents water hammer regardless of whether the heating coil is shaped like a hat or hair pin.
· The counterweight provides excellent sealing performance at very low pressure.
· The squeezing mechanism inside the main body prevents water leakage to the outside.
· All stainless steel construction provides excellent durability.
· Prevents contaminant by using the strainer as a standard equipment.From: ฿ 2,729.96 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.
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.
YOSHITAKE
SCV-2 is inline type check valve which prevents backflow of the fluids. Widely used in steam or water (heated water) pipes. Also effective for preventing water hammer.
[Features]
· This is inline type to enable the piping compactly.
· Direction (horizontal or vertical) of attaching pipes has no restrictions.From: ฿ 100.00 Days to Ship:
20 Day(s)
20 Day(s)
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You can add up to 6 items per a category to the compare list.
CS-7N Type Check Valve (for Cold/Hot Water)
VENN
Ensures a safe and reliable supply of water for various types of water supply systems by preventing backflow (due to backpressure resulting from pressure drops when the supply is cut off). Compliant with the Japan Water Works Association 'JWWA-B-129 Backflow Preventer Valve' standard. A check valve is installed on the inlet end of the mixing valve to ensure the safety of water supply and hot water systems.
[Features]
·Allows for easy maintenance, without having to remove the check valve from the pipe.
• The provision of an inspection hole allows for easy function checks.
·Reduces pressure drops.
• Usable with warm water up to 90°C.
• Pipe end cores are used for connectors, as they are made of material that won't rust, thus preventing rust-colored water.From: ฿ 100.00 Days to Ship:
7 Day(s)
7 Day(s)
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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.
CS-3SSN, Check Valve (for Cold Water / Hot Water)
VENN
Spring-type for apartment buildings, houses, building facilities, etc. (low pressure loss, prevents water hammer)
[Features]
· For various water supply systems; prevents backflow using back pressure when the pressure of the supply water source decreases due to water supply cutoff, and for maintenance of a reliable and safe water supply.
· Spring style with a closing valve for back-flow prevention during a water outage; prevents water hammering, delivering excellent safety.
· Valve body includes a synthetic rubber disk.
· Usable with warm water up to 90°C.
· Water can be supplied with low pressure loss.
· Pipe end cores are used for connectors, as they are made of material that will not rust, thus preventing rust-colored water.
· The valve body employs a cartridge structure for easy maintenance.
· Noise is kept to 40 dB or below (at rated flow rate) while water is flowing, roughly the same level of noise produced by standard pipes.From: ฿ 1,273.79 Days to Ship:
7 Day(s)
7 Day(s)
![Check Valve (Inline Chuck) [for Steam, Hot Water and Cold Water] CVC3 Type](http://th.misumi-ec.com/en/linked/material/mech/MWK1/PHOTO/221005237024.jpg?$product_view_b$)
| Brand |
|---|
| Product Series |
| 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. ![Check Valve (Inline Chuck) [for Steam, Hot Water and Cold Water] CVC3 Type](http://th.misumi-ec.com/en/linked/material/mech/MWK1/PHOTO/221005237024.jpg?$product_view_c$) | 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 | MIYAWAKI | ASOH | KOYO | YOSHITAKE | VENN | ASOH | KOYO | VENN |
| Product Series | Check Valve (Inline Chuck) [for Steam, Hot Water and Cold Water] CVC3 Type | |||||||
| From | ฿ 2,729.96 | ฿ 578.40 | ฿ 494.68 Special Price On Sale Until 31/03/2026 | ฿ 100.00 | ฿ 100.00 | ฿ 801.35 | ฿ 631.18 | ฿ 1,273.79 |
| Days to Ship | 3 Day(s) | Same day | Same day | 20 Day(s) | 7 Day(s) | 3 Day(s) | 21 Day(s) | 7 Day(s) |
| Applicable Fluid | Water | Water / Air | Air | Water / Air | Water / Others | Water / Air | Air | Water |
| Type | Spring Type (In-line) | Spring Type (In-line) | Spring Type (In-line) | Spring Type (In-line) | Others | Spring Type (In-line) | Spring Type (In-line) | Others |
| Material | Stainless Steel Cast | Brass ～ Stainless Steel | Brass | Stainless Steel | Bronze | Brass ～ Stainless Steel | Brass | Bronze |
| Max. Operating Pressure(MPa) | 2.1 | 2 | 21 | 1.6 | 1 | 2 | 21 | 1 |
| Nominal Pressure | No Standard, Others | No Standard, Others | No Standard, Others | No Standard, Others | 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) | Rc (R) |
| Supply Side, Plumbing Thread Nominal | 1B ～ 3/4B | 1/2B ～ 3/8B | 1/4B ～ 1/8B | 1B ～ 3/4B | 1B ～ 3/4B | 1/2B ～ 3/8B | 1/4B | 3/4B |
| Control Side, Connection Type | Rc (R) | Rc (R) | Rc (R) | Rc (R) | Rc (R) | Rc (R) | Rc (R) | Rc (R) |
| Control Side, Plumbing Thread Nominal | 1B ～ 3/4B | 1/2B ～ 3/8B | 1/4B ～ 1/8B | 1B ～ 3/4B | 1B ～ 3/4B | 1/2B ～ 3/8B | 1/4B | 3/4B |
| 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 | - |
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