Exhaust Valve Automatic Black Irrigation Air Vent Valve form NB-QXHY 1. Product Information With advanced aerodynamic design, our air valves provide a complete solution for intake and exhaust. In the process of filtration and water supply, the air valve can balance the intake and exhaust to ensure that the pipeline is closed at low pressure. Our air valves are widely used in agricultural and landscape irrigation and industrial water circulation systems. | Item Name | Air relief valve |
| Material | Plastic |
| Standard | NPT,BSP |
| Pressure | Normal Pressure |
| Temperature | Normal Temperature |
| Packing | Color Box |
| SIZE | 3/4",1",2" |
| Delivery port | Ningbo by sea |
2. Product Specification | AIR VALVES |
| Type | Picture | Model | Connections
BSP/NPT | Inlet Surface
(mm²) | Working Pressure(Bar) | Weight
(g) | quantity per carton | Gross weight per carton(kgs) | carton measurement (cm) |
V Type
(Vacuum Valve) |  | QXV50 | DN50 2'' | 858 | 0.2-16 | 185 | 60 | 11.00 | 58x38x24 |
K Type
(Kinetic Valve) |  | QXK20 | DN20 3/4'' | 288 | 0.2-16 | 95 | 160 | 18.50 | 58x38x20 |
| QXK25 | DN25 1'' | 288 | 0.2-16 | 95 | 160 | 18.50 | 58x38x20 |
 | QXK20 | DN20 3/4'' | 288 | 0.2-16 | 185 | 100 | 18.90 | 58x38x20 |
| QXK25 | DN25 1'' | 288 | 0.2-16 | 185 | 100 | 19.40 | 58x38x20 |
| QXK20 | DN20 3/4'' | 288 | 0.2-16 | 205 | 100 | 21.00 | 58x38x20 |
| QXK25 | DN25 1'' | 288 | 0.2-16 | 205 | 100 | 21.00 | 58x38x20 |
 | QXK25 | DN25 1'' | 314 | 0.2-16 | 470 | 24 | 11.20 | 58x38x24 |
| QXK50 | DN50 2'' | 908 | 0.2-16 | 1052 | 12 | 11.80 | 58x38x24 |
C Type
(Combined Valve) |  | QXC25 | DN25 1'' | 454 | 0.2-16 | 488 | | | |
 | QXC50 | DN50 2'' | 908 | 0.2-16 | 1020 | 12 | 11.80 | 58x38x24 |
3. Application 1. Main Irrigation Networks - Air relief and vacuum prevention downstream of pumps, along supply lines, and at elevations in main irrigation networks.
2. Irrigation Control Heads - Air relief and vacuum prevention at filtration and fertilization stations.
3. High part of Irrigation Pipeline System - Air relief, Prevention of pipe broken as for high-pressure air. 
4. Packaging 
5. Our Certificate
6. Our Company
7. Service Our Advantages: (1) High pressure can stand: PN10, PN16, PN35, PN40; 150psi, 235psi etc, as customers' request;
(2) Well and high quality control, within 1% leakage;
(3) Environment friendly, non-toxic, good looking and long service life;
(4) Light weight, easy to handle and transport;
(5) Soft colors and excellent design, suitable for installation either exposed or hidden;
(6) Wonderful ability in chemical corrosion resistance;
(7) Easy and fast installation, making cost minimized;
(8) Widely used in building, irrigation, industry and swimming pool;
(9) Small order acceptable;
(10) Customer's design and logo are welcome.
Why Us? (1) We provide OEM service and submit Various styles, latest designs to our clients;
(2) We work with big customers in Southeast Asia, Africa, Middle East, North America, South America;
(3) According to the needs of customers in different regions, we match different quality and thickness valves with various styles, so that our customers are very competitive in the market!
(4) Our high quality PVC valve can be consistent with European and American national brand valves!
(5) We have great experience on providing high quality products and most professional service to clients about 10 years more!
(6) Customers choose our products, can mix and match our PVC pipe fittings, PVC butterfly valves, PP Fittings, irrigation products to buy together, so that the customer product line is more abundant, both quality and delivery time are guaranteed.
(7) We can flexible from China any port export! Welcome you inquiry us!
