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High Flow Air Release Valve - China Factory Suppliers for Efficient Irrigation Systems and Durable Construction
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 main function is to manage air within irrigation pipelines automatically. It releases trapped air during system startup and provides vacuum protection during shutdown, maintaining stable flow and preventing pipeline damage.
Where is the best place to install these valves?
We recommend installing the valves vertically at system high points, filter outlets, or near valve assemblies where air is most likely to collect and cause blockages.
What materials are the RL-VP Series valves made of?
They are constructed from high-quality reinforced PP plastic, which provides excellent mechanical strength, durability, and superior resistance to UV radiation.
What sizes and connection options are available?
The series is available in four sizes: 3/4”, 1”, 1.5”, and 2”. They feature standard BSP or NPT male thread connections for easy integration.
What is the working pressure range of these air valves?
The RL-VP Series operates reliably within a working pressure range of 0.3 to 15 bar, supporting stable performance under both low and high-pressure conditions.