Airtac NRV Non-Return Valve NRV20
A cropped merino wool cardigan taken up a notch, thanks to the flecks of metallic thread throughout. We love it even more paired with the matching sweater-pants.
2、Prevents backflow phenomena caused by pressure decay in air supply systems or excessive consumption-induced pressure drops;
3、Features a large effective flow area for optimized pneumatic performance;
4、Incorporates injection-molded POM valve core and elastomer-sealed orifice, engineered with compact construction for reliability.
Category: Check Valves
Brand: AIRTAC
Series: NRV
AirTAC NRV Series One-Way Valve NRV20 Technical Specifications
- Model: NRV20 (Metal Body Series)
- Type: Spring-loaded poppet check valve
- Port size: PT3/8 (G3/8 optional)
- Max working pressure: 1.5 MPa
- Cracking pressure: 0.015 MPa
- Flow capacity: 250 L/min (ΔP=0.1 MPa)
- Operating temperature: -5℃ to 80℃
- Seal material: HNBR (Hydrogenated Nitrile)
- Body material: Aluminum alloy (anodized)
- Weight: 280g ±5%
- Dimensions: 56mm(L) × 42mm(W) × 42mm(H)
- Thread torque: 15-20 N·m
- Viscosity range: 1-400 cSt
High-flow check valve with precision-machined metal seat for zero-leakage performance. Features low cracking pressure and bi-directional installation capability. The HNBR seals provide chemical resistance against hydraulic oils and mild lubricants. Anodized surface treatment ensures corrosion protection in humid environments.
- Pneumatic circuit backflow prevention
- Hydraulic system pressure holding
- Air compressor outlet protection
- Vacuum pump inlet isolation
- Industrial robot actuator circuits
- CNC machine tool lubrication systems
Installation guidance:
Arrow direction indicates flow path. For vertical mounting,
position valve with arrow pointing upward. Apply thread sealant
(PTFE tape recommended) on male threads only. Avoid overtightening -
use torque wrench for precise installation.
| Property | Property Value |
|---|---|
| sku | NRV20 |
| Port | BSPT 3/4 |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.