AirTAC NRV Series Non-Return Valve
Pneumatic Check Valve for One-Way Airflow Control
The AirTAC NRV Series Non-Return Valve is a pneumatic check valve designed to allow compressed air to flow in one direction while preventing reverse airflow.
The NRV Series provides reliable backflow prevention when pressure suddenly drops or air consumption changes within a pneumatic system. Its compact construction and large effective flow area make it suitable for industrial compressed air and pneumatic control applications.
Available in port sizes from 1/8″ to 1″, the AirTAC NRV Series provides multiple flow capacities for pneumatic machinery, automation equipment and general industrial compressed air systems.
NRV Series
Available Models
| Model | Port Size | Orifice Size | Cv |
|---|---|---|---|
| NRV06 | 1/8″ | 18 mm² | 1.0 |
| NRV08 | 1/4″ | 27 mm² | 1.5 |
| NRV10 | 3/8″ | 60 mm² | 3.33 |
| NRV15 | 1/2″ | 73 mm² | 4.06 |
| NRV20 | 3/4″ | 230 mm² | 12.78 |
| NRV25 | 1″ | 260 mm² | 14.44 |
Specifications
Product Feature
Applications
Specifications
| Specification | NRV Series |
|---|---|
| Fluid | Air (filtered by 40 μm filter element) |
| Valve Function | One-Way Flow / Backflow Prevention |
| Port Size | 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″ |
| Pressure Range | 0.02–1.0 MPa (2.9–145 psi) |
| Proof Pressure | 1.5 MPa (215 psi) |
| Temperature Range | -20°C to 70°C |
| Body Material | Aluminium alloy |
| Thread Type | PT, G, NPT |
Product Feature
- Allows compressed air to flow in one direction only
- Prevents reverse airflow and pneumatic backflow
- Helps protect pneumatic circuits during sudden pressure drops
- Large effective flow area for efficient airflow
- Available in port sizes from 1/8″ to 1″
- Compact internal structure
- POM spool with rubber-sealed valve core
- Aluminium alloy body construction
- PT, G and NPT thread options available
- Suitable for industrial pneumatic systems
Applications
The AirTAC NRV Series Non-Return Valve is suitable for:
- Pneumatic backflow prevention
- One-way compressed air circuits
- Pneumatic cylinder circuits
- Compressed air piping systems
- Pneumatic actuator systems
- Industrial automation equipment
- Assembly machinery
- Packaging machinery
- Production equipment
- General industrial pneumatic systems
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