Inline check valves (SUS)NR2-S series

  • Supports high pressure ranges up to 10 MPa.
  • Alternative materials such as SUS316L and Hastelloy are also available.

Fluid Water, Oil, Air, Gas, Steam
Temperature PTFE：-40C to +200C
Pressure* PTFE：0-2MPa　Metal：0-3MPa
Stellite : 0-10MPa
Size 8-25A
Cracking Pressure 1.0-7.4kPa(It depends on the Flow direction)
Flow rate Accuracy plus minus 30-50%

 

NR2-S series
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NR2-S series
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Valve Specification

Model Connection Port Pressure CV
Value		 Weight
kg
Size Type
NR2-S-8 1/4 Rc  2WAY PTFE： 0-2.0MPa 0.7 0.18
NR2-S-10 3/8 2.0 0.30
NR2-S-15 1/2 3.5 0.45
NR2-S-20 3/4 6.5 0.55
NR2-S-25 1 11.0 0.90
NR2-S-8Q 1/4 0-3.0MPa 0.7 0.18
NR2-S-10Q 3/8 2.0 0.30
NR2-S-15Q 1/2 3.5 0.45
NR2-S-20Q 3/4 6.5 0.55
NR2-S-25Q 1 11.0 0.90
NR-S-8U 1/4 0-10.0MPa 0.7 0.75
NR-S-10U 3/8 2.0
NR-S-15U 1/2 3.5
NR-S-20U 3/4 6.5 1.97
NR-S-25U 1 11.0 3.25

 

Cracking Pressure [kPa]
Model Cracking Pressure [kPa]
FLOW
↓ → ↑
NR2-S-(8 to 25) 1.0±30％ 3.2±30％ 5.3±30％
NR2-S-(8 to 25) Q 1.0±30％ 3.2±30％ 5.3±30％
NR2-S-(8 to 25) U 6.6±50％ 7.0±50％ 7.4±50％

 

Main Parts List

NR2-S-**
No Name of Parts Materials
1 Body A SUS304
2 Spring SUS304W
3 Valve SUS3O4
4 Valve Disk PTFE
5 Body B SUS304
6 Body Packing PTFE
NR2-S-**Q
No Name of Parts Materials
1 Body A SUS304
2 Spring SUS304W
3 Valve SUS3O4
4 Valve Disk SUS304
5 Body B SUS304
6 Body Packing PTFE
NR2-S-**U
No 名称 材質
1 Body A SUS304
2 Spring SUS304W
3 Valve SUS3O4
4 Valve Disk SUS304＋Stellite
5 Body B SUS304
6 Body Packing FKM

** comes in size.

Dimensions

Model Size Dimension
mm
φd L A
NR2-S-8 1/4 8.5 60 25
NR2-S-10 3/8 12.5 70 30
NR2-S-15 1/2 14 80 35
NR2-S-20 3/4 20 90 40
NR2-S-25 1 25 100 50
Model Size Dimension
mm
φd L A
NR2-S-8Q 1/4 8.5 60 25
NR2-S-10Q 3/8 12.5 70 30
NR2-S-15Q 1/2 14 80 35
NR2-S-20Q 3/4 20 90 40
NR2-S-25Q 1 25 100 50
Model Size Dimension
mm
φd L A
NR2-S-8U 1/4 8.5 90 42
NR2-S-10U 3/8 12.5
NR2-S-15U 1/2 14
NR2-S-20U 3/4 20 120 60
NR2-S-25U 1 25 150 70

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  • Keihin Co., Ltd.’s valve products (all products listed on the website or catalogue) can be purchased anywhere around the world from one pcs! (→Learn More)
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    International Sales Division +81-45-453-1616  Hours: 8:50 A.M. to 5:40 P.M.

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