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Check Valves（Control Side, Tube Flange Nominal：12B）

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 (0) ISHIZAKI CO (0) KITZ (1) KOYO (0) MIYAWAKI (0) ONDASEISAKUSYO (0) RS Pro (0) SEKISUI CHEMICAL (0) SNL FITTING (0) TOMOEVALVE (1) TOYO VALVE (0) VENN (0) 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

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20SOB, 20K Ductile Iron Swing Check Valve

Until 31/03/2026

20SOB, 20K Ductile Iron Swing Check Valve

KITZ

[Features]
· The ductile cast iron product (FCD-S) is a cast iron product that passes JIS B8270 Appendix 5-A and the standard specified by METI Public Notice No. 16 1975.8.1 (Revision, March 24, 1997 Notice No. 137) Article 4-7, Note 1, and its material is regulated specially for high pressure gas facilities, pressure containers, etc. which are different from cast iron products regulated by JISG5502 Standard for Ductile Iron (FCD400-15, etc.).
· Cast with the following chemical composition, mechanical properties and micro structure as defined in the official notice of JIS and METI for ductile iron castings (FCD-S), making it suitable for use in high pressure gas equipment or pressure vessels.

From: ฿ 273,888.00
Special Price
Days to Ship: 25 Day(s)

25 Day(s)

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Bata-Check 903C/906C

TOMOEVALVE

Bata-Check 903C Valve
[Specifications]
- Main Body Shape: Wafer Type
- Applicable Fluid: Water/Air
- Applicable Flange Standard: JIS 10K
- Standard Material Main Body: FC250
- Supply Side, Connection Type: Flange
- Control Side, Connection Type: Flange
- Max. Operating Pressure (MPa): 1
- Valve Body Material: CAC702
- Sheet Ring Material: NBR

From: ฿ 100.00
Days to Ship: Quote

Quote


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
Brand	KITZ	TOMOEVALVE
Product Series	20SOB, 20K Ductile Iron Swing Check Valve	Bata-Check 903C/906C
CAD		2D
From	฿ 273,888.00 Special Price On Sale Until 31/03/2026	฿ 100.00
Days to Ship	25 Day(s)	Quote
Applicable Fluid	Water / Air / Oil / Gas	Water / Air
Type	Swing Type	Wafer Type
Material	Ductile Cast Iron	Cast Iron
Max. Operating Pressure(MPa)	2.75	1
Nominal Pressure	20K	10K
Supply Side, Connection Type	Flange	Flange
Supply Side, Plumbing Thread Nominal	-	-
Control Side, Connection Type	Flange	Flange
Control Side, Plumbing Thread Nominal	-	-
Supply Side, Tube Flange Nominal	12B	12B
Control Side, Tube Flange Nominal	12B	12B
Cracking Pressure(MPa)	-	-