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High Flow Air Release Valve - Reliable Suppliers & Factory in China for Irrigation Systems, Durable & Easy to Install
PRODUCT DESCRIPTION
RAIN LING Air Release Valves Series ensures efficient and stable water flow by automatically managing air within irrigation pipelines.
Trapped air or vacuum pockets can cause uneven pressure, reduce water delivery, and damage system components. These valves provide reliable air release and vacuum protection, maintaining consistent hydraulic performance in all operating conditions.
Constructed from reinforced PP plastic, the RL-VP Series offers superior UV resistance, excellent mechanical strength, and a long service life.
Its precision-engineered structure supports smooth operation under both high and low pressures, making it ideal for residential, commercial, and agricultural irrigation systems.
Available Sizes: 3/4”, 1”, 1.5”, and 2”
Connection Type: BSP/NPT male thread
Recommended Installation: Vertical position at system high points, filter outlets, or near valve assemblies.
PRODUCT SPECIFICATIONS
| Model | Size | Height | Thread Type | Air Release (m³/h) | Vacuum Intake (m³/h) | Working Pressure | Material |
|---|---|---|---|---|---|---|---|
| RL-VP75 | 3/4" | 170 mm | BSP/NPT Male 25 mm | 0–280 | -280–0 | 0.3–15 bar | PP Plastic |
| RL-VP100 | 1" | 172 mm | BSP/NPT Male 32 mm | ||||
| RL-VP150 | 1.5" | 172 mm | BSP/NPT Male 50 mm | ||||
| RL-VP200 | 2" | 270 mm | BSP/NPT Male 63 mm | 0–360 | -360–0 |
DETAIL DISPLAY
Frequently Asked Questions
What is the primary function of the RAIN LING Air Release Valve?
The primary function is to automatically manage and release trapped air or vacuum pockets within irrigation pipelines. This ensures stable water flow, prevents uneven pressure, and protects system components from damage.
What sizes and thread types are available for the RL-VP Series?
The RL-VP Series is available in 3/4”, 1”, 1.5”, and 2” sizes. They feature BSP/NPT male thread connections ranging from 25 mm to 63 mm for easy integration.
Where should I install the air release valves in my irrigation system?
For optimal performance, it is recommended to install the valves vertically at system high points, filter outlets, or near valve assemblies where air is most likely to accumulate.
What is the working pressure range of these valves?
The RL-VP Series operates efficiently within a working pressure range of 0.3 to 15 bar, making it suitable for both low-pressure and high-pressure irrigation systems.
How does the reinforced PP plastic material benefit the system?
The reinforced PP plastic construction provides superior UV resistance, excellent mechanical strength, and high durability against harsh environmental conditions, ensuring a long service life.
Do these valves support both air release and vacuum intake?
Yes. They provide reliable air release during system startup and operation, as well as vacuum intake protection when the system is shutting down or draining, preventing pipeline collapse.








