The NRV check valve has a compact and sturdy design, usually made of aluminum, brass, or stainless steel. It allows fluid or air to flow in one direction only, preventing back-flow and protecting the system.
This NRV check valve is lightweight, easy to install, and maintenance-free. It is widely used in pneumatic systems, water pumps, air compressors, and automation equipment, wherever back-flow prevention is needed.
1.Available in many port sizes: 1/8", 1/4", 3/8", 1/2", 3/4", and 1".
2.Allows fluid to flow in only one direction.
3.Prevents back-flow caused by sudden pressure drop or lower air consumption.
4.Has a large effective flow area.
5.The spool is made of POM, the valve core is sealed with rubber, and the design is compact.
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Ordering Code |
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NRV |
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08 |
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Model |
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Port size: |
thread type |
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NRV:check valve |
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06:G1/8 |
Blank:Standard |
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08:G1/4 |
G:G |
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10:G3/8 |
T:NPT |
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15:G1/2 |
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20:G3/4 |
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25:1. |
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model |
NRV06 |
NRV08 |
NRV10 |
NRV15 |
NRV20 |
NRV25 |
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fluid |
Air (filtered by 40 μm or above filter) |
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port size |
G1/8 |
G1/4 |
G3/8 |
G1/2 |
G3/4 |
G1 |
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orifice size mm ² |
18(1.0) |
27(1.5) |
60(3.33) |
73(4.06) |
230(12.78) |
260(14.44) |
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Pressure range |
0.02-1.0MPA(2.9-145psi) |
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Proof pressure |
1.5MPa (215psi) |
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temperature |
‘-20-70 ℃ |
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Body Material |
Aluminum Alloy |
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Q: Which products can OLK NRV check valve replace?
A: OLK NRV check valve can replace AIRTAC NRV series solenoid valves with the same function and similar specifications.
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