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Check Valves（Control Side, Tube Flange Nominal：1/2B）

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 (5) KOYO (0) MIYAWAKI (0) ONDASEISAKUSYO (0) RS Pro (0) SEKISUI CHEMICAL (0) SNL FITTING (0) TOMOEVALVE (0) TOYO VALVE (0) VENN (0) YOSHITAKE (0)
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Until 31/03/2026

OB, 10K Cast Bronze Swing Check Valve

KITZ

KITZ, Check Valve for Fluid, Bronze, for General Purpose,10K Swing Check Valve Flange.
[Features]
・ Secure sealing of pipe connection
・ Hygienic with zero fluid contamination
・ High durability against freezing and impact
・ Excellent workability and efficient piping is possible

From: ฿ 6,088.00
Special Price
Days to Ship: 4 Day(s)

4 Day(s)

Compare

20SNB, 20K Ductile Iron Lift Check Valve

Until 31/03/2026

20SNB, 20K Ductile Iron Lift Check Valve

KITZ

Ductile iron valves can be used as valves for high pressure gas equipment.

From: ฿ 3,229.00
Special Price
Days to Ship: 3 Day(s)

3 Day(s)

Compare

10SFBF, 10K Ductile Iron Lift Check Valve

Until 31/03/2026

10SFBF, 10K Ductile Iron Lift 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: ฿ 2,115.00
Special Price
Days to Ship: 25 Day(s)

25 Day(s)

Compare

UOB, 10K Cast Stainless Steel Swing Check Valve

Until 31/03/2026

UOB, 10K Cast Stainless Steel Swing Check Valve

KITZ

KITZ, check valve for fluid, general-purpose 10 K stainless steel swing check (SCS13A) valve flange

From: ฿ 7,327.50
Special Price
Days to Ship: 3 Day(s)

3 Day(s)

Compare

Stainless Steel General-Purpose 10K Swing Check (SCS14A) Valve Flange

Until 31/03/2026

Stainless Steel General-Purpose 10K Swing Check (SCS14A) Valve Flange

KITZ

From: ฿ 9,764.00
Special Price
Days to Ship: 25 Day(s)

25 Day(s)


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.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
Brand	KITZ	KITZ	KITZ	KITZ	KITZ
Product Series	OB, 10K Cast Bronze Swing Check Valve	20SNB, 20K Ductile Iron Lift Check Valve	10SFBF, 10K Ductile Iron Lift Check Valve	UOB, 10K Cast Stainless Steel Swing Check Valve	Stainless Steel General-Purpose 10K Swing Check (SCS14A) Valve Flange
From	฿ 6,088.00 Special Price On Sale Until 31/03/2026	฿ 3,229.00 Special Price On Sale Until 31/03/2026	฿ 2,115.00 Special Price On Sale Until 31/03/2026	฿ 7,327.50 Special Price On Sale Until 31/03/2026	฿ 9,764.00 Special Price On Sale Until 31/03/2026
Days to Ship	4 Day(s)	3 Day(s)	25 Day(s)	3 Day(s)	25 Day(s)
Applicable Fluid	Water / Air / Oil / Gas	Water / Air / Oil / Gas	Water / Air / Oil / Gas	Water / Air / Oil / Gas	Water / Air / Oil / Gas
Type	Swing Type	Lift Type	Lift Type	Swing Type	Swing Type
Material	Bronze	Ductile Cast Iron	Ductile Cast Iron	Stainless Steel Cast	Stainless Steel Cast
Max. Operating Pressure(MPa)	1.4	2.75	1.4	1.4	1.4
Nominal Pressure	10K	20K	10K	10K	10K
Supply Side, Connection Type	Flange	Flange	Flange	Flange	Flange
Supply Side, Plumbing Thread Nominal	-	-	-	-	-
Control Side, Connection Type	Flange	Flange	Flange	Flange	Flange
Control Side, Plumbing Thread Nominal	-	-	-	-	-
Supply Side, Tube Flange Nominal	1/2B	1/2B	1/2B	1/2B	1/2B
Control Side, Tube Flange Nominal	1/2B	1/2B	1/2B	1/2B	1/2B
Cracking Pressure(MPa)	-	-	-	-	-