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Check Valves（Control Side, Plumbing Thread Nominal：3/8B）

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

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

13 items

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Bronze JIS Standard 10K Swing Check Valve Screw-in

Until 31/03/2025

Bronze JIS Standard 10K Swing Check Valve Screw-in

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: ฿ 843.77
Special Price
Days to Ship: Same day

Same day

Compare

Bronze General-Purpose Model 150 Lift Check Valve Screw-in

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: ฿ 269.17
Days to Ship: 2 Day(s)

2 Day(s)

Compare

150 E Type - Bronze Screw-in Type Lift Check Valve

TOYO VALVE

A valve that is very safe for use in corrosive environments.

From: ฿ 751.48
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Until 31/03/2025

A-Check Nipple Type

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: ฿ 940.30
Special Price
Days to Ship: 3 Day(s)

3 Day(s)

Compare

Bronze General-Purpose Type 125 Swing Check Valve Screw-in

Until 31/03/2025

Bronze General-Purpose Type 125 Swing Check Valve Screw-in

KITZ

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

From: ฿ 336.46
Special Price
Days to Ship: Same day

Same day

Compare

Bronze General-Purpose 125 Type Y Shaped Swing Check Valve Screw-in

KITZ

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

From: ฿ 455.21
Days to Ship: 2 Day(s)

2 Day(s)

Compare

Until 31/03/2025

Check Valve/Oil Hydraulic

MISUMI

[Features]·Incorporating this product into the hydraulic circuit prevents backflow.

From: ฿ 2,620.80
Special Price
Days to Ship: Same day

Same day

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: ฿ 919.70
Days to Ship: 5 Day(s)

5 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: ฿ 838.89
Days to Ship: 5 Day(s)

5 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: ฿ 724.87
Days to Ship: 5 Day(s)

5 Day(s)

Compare

A-Check Socket Type

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: ฿ 1,095.13
Days to Ship: 3 Day(s)

3 Day(s)

Compare

Check Valve EA425EC-3

ESCO

【Product Specifications】
・Operating pressure-4.9MPa (50kgf/cm2)
・Material-Brass
・Cracking pressure-6.8kPa (0.07kg/cm2)
・Thread (PT)…3/8

From: ฿ 1,345.68
Days to Ship: 3 Day(s)

3 Day(s)

Compare

Swing check valve, bronze

ESCO

ESCO Check valves and swing check valves for fluids.

From: ฿ 1,546.13
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.Compare Until 31/03/2025	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 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	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 31/03/2025	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	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	TOYO VALVE	ASOH	KITZ	KITZ	MISUMI	TOYO VALVE	TOYO VALVE	TOYO VALVE	ASOH	ESCO	ESCO
Product Series	Bronze JIS Standard 10K Swing Check Valve Screw-in	Bronze General-Purpose Model 150 Lift Check Valve Screw-in	150 E Type - Bronze Screw-in Type Lift Check Valve	A-Check Nipple Type	Bronze General-Purpose Type 125 Swing Check Valve Screw-in	Bronze General-Purpose 125 Type Y Shaped Swing Check Valve Screw-in	Check Valve/Oil Hydraulic	10K Bronze Threaded Swing Check Valve (Metal Sheet) (JIS B 2011)<<New JIS Products>>	125H Model Bronze Screw-in Type Swing Check Valve	125 Type - Bronze Screw-in Type Swing Check Valve	A-Check Socket Type	Check Valve EA425EC-3	Swing check valve, bronze
CAD			2D				2D / 3D	2D	2D	2D
From	฿ 843.77 Special Price On Sale Until 31/03/2025	฿ 269.17	฿ 751.48	฿ 940.30 Special Price On Sale Until 31/03/2025	฿ 336.46 Special Price On Sale Until 31/03/2025	฿ 455.21	฿ 2,620.80 Special Price On Sale Until 31/03/2025	฿ 919.70	฿ 838.89	฿ 724.87	฿ 1,095.13	฿ 1,345.68	฿ 1,546.13
Days to Ship	Same day	2 Day(s)	5 Day(s)	3 Day(s)	Same day	2 Day(s)	Same day	5 Day(s)	5 Day(s)	5 Day(s)	3 Day(s)	3 Day(s)	3 Day(s)
Applicable Fluid	Water / Air / Oil / Gas	Water	Water / Others	Water / Air	Water	Water	Oil	Water	Water / Others	Water / Others	Water / Air	Oil / Gas	Water / Air / Oil / Gas
Type	Swing Type	Lift Type	Lift Type	Spring Type (In-line)	Swing Type	Swing Type	Spring Type (In-line)	Swing Type	Swing Type	Swing Type	Spring Type (In-line)	-	Swing Type
Material	Bronze	Bronze	Bronze	Brass ～ Stainless Steel	Bronze	Bronze	Steel	Bronze	Bronze	Bronze	Brass ～ Stainless Steel	Brass	Bronze
Max. Operating Pressure(MPa)	1.4	1.6	1.6	2	1.18	1.18	34.5	1.4	1.2	1.2	2	4.9	1.37
Nominal Pressure	10K	150	150	No Standard, Others	125	125	-	10K	125	125	No Standard, Others	-	-
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)
Supply Side, Plumbing Thread Nominal	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B
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)
Control Side, Plumbing Thread Nominal	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B	3/8B
Supply Side, Tube Flange Nominal	-	-	-	-	-	-	-	-	-	-	-	-	-
Control Side, Tube Flange Nominal	-	-	-	-	-	-	-	-	-	-	-	-	-
Cracking Pressure(MPa)	-	-	-	0.007	-	-	0.04	-	-	-	0.007	0.007	-