- Color:Black
- Material:Plastic
- Brand:DFShou
- Valve type:release air
- Measurement (Cm):54*35*28
- G.W(Kg):25
- Type:Pressure Vacuum Breaker
- Type:Atmospheric Vacuum Breaker
- Type:Thermostatic Air-Vent & Vacuum Breaker
- Type:Safety Relief Valves
- Type:Adjustable Relief Valves
- Type:Pressure Reducing Control Valves
- Application:General
- Temperature of Media:Normal Temperature
- Power:Manual
- Media:Gas
- Structure:Pressure Reducing
- Place of Origin:CN;FUJ
- Brand Name:OEM
- Model Number:EVA01
- Port Size:2inch
- Keywords:air release plastic valve,air release valve plastic,agriculture release

Air release valve
Features
lInlet and exhaust air valves are suitable for various irrigation system applications. When the system is filled with water, the air valve discharges a large amount of air in the pipeline; when the system is emptied, the air valve draws in a large amount of air to prevent vacuum negative pressure.
lThe valve adopts advanced composite gas dynamics design, with rapid intake and exhaust; it can avoid air accumulation, prevent the formation of negative pressure, and has good sealing performance at low pressure.
Product Usage
lIrrigation system pipe network: Exhaust the air in the irrigation system to avoid negative pressure on the downstream of the pumpandthe wateralong the pipeline andup-down slope of the pipeline.
lIrrigation First part: Discharge air to prevent negative pressure at the filter and fertiliser tank.
lIrrigation pipeline High place: Exhaust air to avoid air accumulation at high points in the system to damage the pipe.
| Pic | Item No. | Description | Packing (Pcs) | Measurement (Cm) | G.W(Kg) |
![]() | EV1/2 | Air release valve, 1/2" | 100/2000 | 54*35*28 | 12 |
![]() | EV3/4 | Air release valve, 3/4" | 10/200 | 54*35*28 | 16 |
| EV01 | Air release valve, 1" | 10/200 | 54*35*28 | 18 | |
![]() | EVA01 | Air release valve, 1" | 2/120 | 54*35*28 | 25 |
![]() | EVA02 | Air release valve, 2" | 1/15 | 54*35*28 | 12 |
![]() | EVB02 | Air release valve, 2" | 1/10 | 54*35*28 | 21 |














