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China Plastic Quick-Coupling Valves - Durable, Anti-Leak, Watering Solution from trusted Suppliers & Factory
Product Description
RAIN LING Plastic Quick-Coupling Valves Series provides a convenient and efficient way to draw water directly from your irrigation line. Designed for professional and residential irrigation systems alike, these valves offer instant access to water for hand watering, testing, or maintenance—without the need to cut or reconfigure the system.
Each valve features a spring-loaded internal seal that opens only when the key or coupler rod is inserted, ensuring safe and leak-free operation. The body is constructed from high-strength PP plastic, resistant to UV radiation, corrosion, and mechanical stress, guaranteeing reliable performance even in harsh outdoor environments.
Four-Piece Sets (RL-VQ75 / RL-VQ100)
Includes valve body, key rod, elbow, and connector, providing a complete quick-access solution.
- Key-rod interlock mechanism prevents accidental water release.
- Ideal for turf and golf course maintenance, landscape irrigation, or cleaning equipment.
- Available in 3/4" (DN20) and 1" (DN25) connection sizes.
Three-Piece Sets (RL-VQ75A / RL-VQ100A)
Includes valve body, water key, and fixing plate, ensuring simple installation and compact structure.
- Designed for smaller irrigation zones or garden applications.
- Valve remains securely closed until the key is inserted.
- Durable plastic ensures stability under pressure and easy replacement.
With working pressure from 2 to 8 kg (≈29–116 psi), this series ensures stable flow control and quick connection in all types of irrigation environments. Whether used in parks, golf courses, or home gardens, Rain Ling’s Quick-Coupling Valves combine efficiency, safety, and reliability—an essential component for any modern irrigation network.
Product Specifications
| Model No. | Type | Connection Size | Material | Components | Working Pressure | Warranty |
|---|---|---|---|---|---|---|
| RL-VQ75 | Four-Piece Set | 3/4" (DN20) | PP Plastic | Valve Body + Key Rod + Elbow + Connector | 2–8 bar | 3 years |
| RL-VQ100 | Four-Piece Set | 1" (DN25) | PP Plastic | Valve Body + Key Rod + Elbow + Connector | 2–8 bar | 3 years |
| RL-VQ75A | Three-Piece Set | 3/4" (DN20) | Plastic | Valve Body + Water Key + Fixing Plate | 2–8 bar | 3 years |
| RL-VQ100A | Three-Piece Set | 1" (DN25) | Plastic | Valve Body + Water Key + Fixing Plate | 2–8 bar | 3 years |
Detail Display
Frequently Asked Questions
What is a plastic quick-coupling valve used for?
It provides a convenient and direct way to draw water from an underground irrigation line. It is commonly used for manual watering, testing zones, or system maintenance without shutting down the entire irrigation network.
What is the difference between the 3-piece and 4-piece sets?
The four-piece sets (RL-VQ75/RL-VQ100) include a valve body, key rod, elbow, and connector for a complete quick-access setup. The three-piece sets (RL-VQ75A/RL-VQ100A) feature a valve body, water key, and fixing plate, designed for a more compact and simple installation.
What connection sizes are available for these valves?
They are available in two standard connection sizes: 3/4" (DN20) and 1" (DN25) to fit standard residential and commercial irrigation systems.
What is the working pressure range of these valves?
The series operates reliably under a working pressure range of 2 to 8 bar (approximately 29 to 116 psi), making them suitable for various high and low-pressure environments.
Are these quick-coupling valves UV and corrosion-resistant?
Yes, the valve bodies are manufactured from high-strength PP (polypropylene) plastic, which is specifically designed to resist UV radiation, chemical corrosion, and mechanical stress in harsh outdoor conditions.