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 CR:0-60C PTFE:-40C to +200C
Pressure*

CR:V-1MPa PTFE:V-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%

※The sign of V means vacuum.

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Valve Specification

Model Connection Port Pressure CV
Value
Weight
kg
Size Type
NR2-S-8 1/4 Rc  2WAY

CR:V-1.0MPa*

PTFE: V-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

※The sign of V means vacuum.

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 CR or 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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