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High Flow Capacity Air Release Valve - Durable & Reliable for Irrigation | China Suppliers & Factory
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 (FAQ)
What is the main 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 hydraulic damage.
What sizes are available for the RL-VP Series?
The RL-VP Series is available in four standard sizes: 3/4”, 1”, 1.5”, and 2” with BSP or NPT male thread connections to fit various piping systems.
Where is the best place to install these air release valves?
For optimal performance, it is recommended to install the valves vertically at high points of the system, filter outlets, or near main valve assemblies where air is most likely to accumulate.
What material is used to construct the RL-VP Series valves?
They are constructed from high-quality reinforced PP (Polypropylene) plastic. This material provides superior UV resistance, excellent mechanical strength, and a long service life under harsh outdoor conditions.
What is the working pressure range of these valves?
The RL-VP Series air release valves operate efficiently under a working pressure range of 0.3 to 15 bar, ensuring smooth operation in both low and high-pressure irrigation setups.