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Check Valves（Control Side, Plumbing Thread Nominal：1 1/4B）

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.

Configure

Specification/Dimensions

Applicable Fluid
- Water
- Air
- Oil
- Gas
- Chemical
- Others
Clear

Type
- Swing Type
- Lift Type
- Spring Type (In-line)
- Wafer Type
- Others
Clear

Material
Brass

Bronze

Cast Iron

Cast Steel

Ductile Cast Iron

Lead-free Copper Alloy

Resin

Stainless Steel

Stainless Steel Cast

Steel
Clear

Max. Operating Pressure(MPa)
0.5

0.6

0.98

1

1.18

1.2

1.37

1.4

1.6

1.73

2

2.1

2.2

2.75

2.8

3.4

4.9

5.1

21.0

34.5

70
Clear

Nominal Pressure
10K

16K

20K

125

150

200

300

No Standard, Others
Clear

Supply Side, Connection Type
Flange

Rc (R)
Clear

Supply Side, Plumbing Thread Nominal
1B

1 1/2B

1 1/4B

1/2B

1/4B

1/8B

2B

2 1/2B

3B

3/4B

3/8B

4B
Clear

Control Side, Connection Type
Flange

Rc (R)
Clear

Control Side, Plumbing Thread Nominal
1B

1 1/2B

1 1/4B

1/2B

1/4B

1/8B

2B

2 1/2B

3B

3/4B

3/8B

4B
Clear

Supply Side, Tube Flange Nominal
1B

1 1/2B

1 1/4B

1/2B

2B

2 1/2B

3B

3/4B

4B

5B

6B

8B

10B

12B
Clear

Control Side, Tube Flange Nominal
1B

1 1/2B

1 1/4B

1/2B

2B

2 1/2B

3B

3/4B

4B

5B

6B

8B

10B

12B
Clear

Cracking Pressure(MPa)
0.007

0.04

0.05

0.3
Clear

Brand	(0) (0) ASOH (0) DANFOSS (0) ESCO (0) HITACHIVALVE (2) ISHIZAKI CO (0) KITZ (9) KOYO (0) MIYAWAKI (0) ONDASEISAKUSYO (1) RS Pro (0) SEKISUI CHEMICAL (0) SNL FITTING (0) TOMOEVALVE (0) TOYO VALVE (6) VENN (1) YOSHITAKE (0)
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CAD	2D 3D
Days to Ship	All Same day 3 Day(s) or Less 4 Day(s) or Less 5 Day(s) or Less 6 Day(s) or Less Others

19 items

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R, Class 125 Cast Bronze Swing Check Valve

Until 31/03/2026

R, Class 125 Cast Bronze Swing Check Valve

KITZ

KITZ, check valve for fluid, general-purpose bronze 125 type screw-in swing check valve

From: ฿ 1,005.00
Special Price
Days to Ship: 3 Day(s)

3 Day(s)

Compare

Until 31/03/2026

O, 10K Cast Bronze Swing Check Valve

KITZ

[Features]
· Secure pipe connection seal.
· A sanitary fitting with zero fluid contamination.
· Highly durable against impact/shock and freezing.
· Excellent workability for more efficient piping.

From: ฿ 3,987.00
Special Price
Days to Ship: 3 Day(s)

3 Day(s)

Compare

RF/RFD, 10K Cast Bronze Lift Check Valve

Until 31/03/2026

RF/RFD, 10K Cast Bronze Lift Check Valve

KITZ

KITZ, check valve for fluid, general-purpose 10 K bronze screw-in lift check valve

From: ฿ 1,133.00
Special Price
Days to Ship: Same day

Same day

Compare

F, Class 150 Cast Bronze Lift Check Valve

Until 31/03/2026

F, Class 150 Cast Bronze Lift Check Valve

KITZ

A bronze, threaded, general-purpose 150 type lift check valve, manufactured by KITZ, with a track record in Japan for top-class quality screw-in fittings / pipe components.

From: ฿ 836.25
Special Price
Days to Ship: 3 Day(s)

3 Day(s)

Compare

UO, 10K Cast Stainless Steel Swing Check Valve

Until 31/03/2026

UO, 10K Cast Stainless Steel Swing Check Valve

KITZ

[Features]
· Problems often encountered in bronze and ductile iron, including insufficient strength and corrosion-resistance, are solved by development of a JIS B 2011 bronze valve.
· This stainless steel valve of flange and screw-in type is easy to use, has high-quality and a long lifespan. As a countermeasure for rusty tap-water, it is compliant with the Public Building Construction Standard Specification (Machinery and Equipment Construction Edition) and Standard SAS358 of the Japan Stainless Steel Association.

From: ฿ 4,218.75
Special Price
Days to Ship: 25 Day(s)

25 Day(s)

Compare

Until 31/03/2026

10SF, 10K Ductile Iron Lift Check Valve

KITZ

A general purpose ductile iron 10K lift check valve screw-in from Kitz with Japan's top-class quality and experience in the field of screw fittings and parts for tubing.
· Materials: ductile cast iron
· Type: Swing
· Working fluid: water, air, oil, gas

From: ฿ 2,238.75
Special Price
Days to Ship: 25 Day(s)

25 Day(s)

Compare

125 Type - Bronze Screw-in Type Swing Check Valve

TOYO VALVE

·This valve is highly safe against corrosive environments. ·Please use it in horizontal piping and upright position.

From: ฿ 3,452.92
Days to Ship: 5 Day(s)

5 Day(s)

Compare

YR, Class 125 Cast Bronze Y-Shaped Swing Check Valve

Until 31/03/2026

YR, Class 125 Cast Bronze Y-Shaped Swing Check Valve

KITZ

[Specifications]
・Applicable Fluid: Water
・Nominal Pressure: 125 Type
・Main Body: Bronze
・Max. Operating Pressure(MPa): 1.18

From: ฿ 1,500.21
Special Price
Days to Ship: 3 Day(s)

3 Day(s)

Compare

125H Model Bronze Screw-in Type Swing Check Valve

TOYO VALVE

A valve that is safe for use in corrosive environments.

From: ฿ 3,852.08
Days to Ship: 5 Day(s)

5 Day(s)

Compare

UN, 10K Cast Stainless Steel Lift Check Valve

Until 31/03/2026

UN, 10K Cast Stainless Steel Lift Check Valve

KITZ

From: ฿ 4,496.00
Special Price
Days to Ship: 25 Day(s)

25 Day(s)

Compare

10K Bronze Threaded Swing Check Valve (Metal Sheet) (JIS B 2011)<<New JIS Products>>

TOYO VALVE

A valve that is safe for use in corrosive environments.

From: ฿ 2,892.19
Days to Ship: 4 Day(s)

4 Day(s)

Compare

J10K Lead Free Bronze Screw Down Swing Check Valve (Metal Sheet) (JIS B 2011) <>

TOYO VALVE

Lead-free copper alloy to provide safe water. Used for water and hot-water supply.

From: ฿ 3,519.80
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Until 31/03/2026

20SN, 20K Ductile Iron Lift Check Valve

KITZ

A 20K ductile iron, threaded, general-purpose lift check valve—manufactured by Kitz Corporation, with a track record in Japan for top-class quality screw fittings/pipe components.
· Material: ductile iron
· Type: swing
· Working fluid: water, air, oil, gas

From: ฿ 5,959.00
Special Price
Days to Ship: 25 Day(s)

25 Day(s)

Compare

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: ฿ 11,009.53
Days to Ship: 7 Day(s)

7 Day(s)

Compare

Malleable Valve, General-Purpose 10K Type, Check Valve (Lift Type) Screw-In

HITACHIVALVE

An economical and strong malleable valve. The main parts are made from stainless steel for better abrasion resistance compared to bronze valves. Optimal for steel pipes. Resists corrosion caused by differences in contact potentials.

From: ฿ 2,507.05
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Malleable Valve, General-Purpose 10K Type, Check Valve (Swing Type), Screwed

Until 31/03/2026

Malleable Valve, General-Purpose 10K Type, Check Valve (Swing Type), Screwed

HITACHIVALVE

An economical and strong malleable valve. Main parts are mostly stainless steel for better abrasion resistance than bronze valves. Ideal for iron pipes. Helps eliminate corrosion caused by contact potential difference.

From: ฿ 2,825.01
Special Price
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Stainless Steel Swing Check Valve, SVC Type, SVC2 Type

ONDASEISAKUSYO

Made from Austenitic stainless steel for optimal corrosion resistance. Make sure assembly is performed after confirming water flow direction and mounting position.

From: ฿ 2,265.12
Days to Ship: 3 Day(s)

3 Day(s)

Compare

16K Type Ductile Cast-Iron Screw Down Lift Check Valve

TOYO VALVE

A tough valve resistant to heat, corrosion abrasion resistance. Use in areas with vapor, hot water, and embedded lines where safety is a priority.

From: ฿ 4,002.36
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Class 10 K - Screw-in Type Swing Check Valve

TOYO VALVE

·Stainless steel valve U series. ·It can be used for general purpose and construction equipment.

From: ฿ 4,423.23
Days to Ship: 5 Day(s)

5 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.Compare Until 31/03/2026	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2026	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2026	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2026	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2026	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2026	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2026	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2026	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2026	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2026	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare
Brand	KITZ	KITZ	KITZ	KITZ	KITZ	KITZ	TOYO VALVE	KITZ	TOYO VALVE	KITZ	TOYO VALVE	TOYO VALVE	KITZ	VENN	HITACHIVALVE	HITACHIVALVE	ONDASEISAKUSYO	TOYO VALVE	TOYO VALVE
Product Series	R, Class 125 Cast Bronze Swing Check Valve	O, 10K Cast Bronze Swing Check Valve	RF/RFD, 10K Cast Bronze Lift Check Valve	F, Class 150 Cast Bronze Lift Check Valve	UO, 10K Cast Stainless Steel Swing Check Valve	10SF, 10K Ductile Iron Lift Check Valve	125 Type - Bronze Screw-in Type Swing Check Valve	YR, Class 125 Cast Bronze Y-Shaped Swing Check Valve	125H Model Bronze Screw-in Type Swing Check Valve	UN, 10K Cast Stainless Steel Lift Check Valve	10K Bronze Threaded Swing Check Valve (Metal Sheet) (JIS B 2011)<<New JIS Products>>	J10K Lead Free Bronze Screw Down Swing Check Valve (Metal Sheet) (JIS B 2011) <>	20SN, 20K Ductile Iron Lift Check Valve	CS-7N Type Check Valve (for Cold/Hot Water)	Malleable Valve, General-Purpose 10K Type, Check Valve (Lift Type) Screw-In	Malleable Valve, General-Purpose 10K Type, Check Valve (Swing Type), Screwed	Stainless Steel Swing Check Valve, SVC Type, SVC2 Type	16K Type Ductile Cast-Iron Screw Down Lift Check Valve	Class 10 K - Screw-in Type Swing Check Valve
CAD							2D		2D		2D	2D			2D	2D		2D	2D
From	฿ 1,005.00 Special Price On Sale Until 31/03/2026	฿ 3,987.00 Special Price On Sale Until 31/03/2026	฿ 1,133.00 Special Price On Sale Until 31/03/2026	฿ 836.25 Special Price On Sale Until 31/03/2026	฿ 4,218.75 Special Price On Sale Until 31/03/2026	฿ 2,238.75 Special Price On Sale Until 31/03/2026	฿ 3,452.92	฿ 1,500.21 Special Price On Sale Until 31/03/2026	฿ 3,852.08	฿ 4,496.00 Special Price On Sale Until 31/03/2026	฿ 2,892.19	฿ 3,519.80	฿ 5,959.00 Special Price On Sale Until 31/03/2026	฿ 11,009.53	฿ 2,507.05	฿ 2,825.01 Special Price On Sale Until 31/03/2026	฿ 2,265.12	฿ 4,002.36	฿ 4,423.23
Days to Ship	3 Day(s)	3 Day(s)	Same day	3 Day(s)	25 Day(s)	25 Day(s)	5 Day(s)	3 Day(s)	5 Day(s)	25 Day(s)	4 Day(s)	5 Day(s)	25 Day(s)	7 Day(s)	5 Day(s)	5 Day(s)	3 Day(s)	5 Day(s)	5 Day(s)
Applicable Fluid	Water	Water / Air / Oil / Gas	Water	Water	Water / Air / Oil / Gas	Water / Air / Oil / Gas	Water / Others	Water	Water / Others	Water / Air / Oil / Gas	Water	Water	Water / Air / Oil / Gas	Water / Others	Water / Air / Oil	Water / Air / Oil	Water / Oil	Water / Air / Oil / Gas	Water / Air / Oil / Gas / Others
Type	Swing Type	Swing Type	Lift Type	Lift Type	Swing Type	Lift Type	Swing Type	Swing Type	Swing Type	Lift Type	Swing Type	Swing Type	Lift Type	Others	Lift Type	Swing Type	Swing Type	Lift Type	Swing Type
Material	Bronze	Bronze	Bronze	Bronze	Stainless Steel Cast	Ductile Cast Iron	Bronze	Bronze	Bronze	Stainless Steel Cast	Bronze	Lead-free Copper Alloy	Ductile Cast Iron	Bronze	Cast Iron	Cast Iron	Stainless Steel Cast	Ductile Cast Iron	Stainless Steel
Max. Operating Pressure(MPa)	1.18	1.4	1.4	1.6	1.4	1.37	1.2	1.18	1.2	1.4	1.4	1.4	2.75	1	1.37	1.37	-	2.2	1
Nominal Pressure	125	10K	10K	150	10K	10K	125	125	125	10K	10K	10K	20K	No Standard, Others	10K	10K	200	16K	10K
Supply Side, Connection Type	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)
Supply Side, Plumbing Thread Nominal	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B
Control Side, Connection Type	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	-	Rc (R)	-	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)	Rc (R)
Control Side, Plumbing Thread Nominal	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B	1 1/4B
Supply Side, Tube Flange Nominal	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Control Side, Tube Flange Nominal	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Cracking Pressure(MPa)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-