L-Series Quick Disconnect Hose Fitting Valved Coupler 5/16 3/8
L-Series Quick Disconnect Hose Fitting Valved Coupler 5/16 3/8
L-Series Valved Quick Disconnect Hose Coupler
Keep your fluid systems under control with this precision-engineered L-Series Quick Disconnect Fitting. Designed for fast, tool-free connections and disconnections, this hose barb coupler features a built-in shut-off valve that automatically stops flow when disconnected — making it ideal for fuel lines, cooling systems, irrigation, and fluid transfer applications.
Key Features
- Quick Shut-Off Valve: Built-in valved design automatically seals flow upon disconnection — no spills, no mess.
- L-Series Standard: Compatible with standard L-series quick coupler systems for broad interchangeability.
- Durable Alloy Construction: Sturdy alloy body with a plastic shell ensures long-lasting performance under pressure.
- EPDM Seal: High-quality EPDM rubber seal provides a reliable, leak-free connection across a wide temperature range.
- SUS316 Stainless Steel Spring: Corrosion-resistant valve core spring for consistent, reliable operation.
- Flange Connection Type: Secure flange-style connection for a stable, vibration-resistant fit.
- Fits 5/16" & 3/8" Hose Barb: Versatile sizing to suit a range of hose inner diameters (approx. 3mm nipple).
- Brand New: Supplied individually (1 pc per package) in brand-new condition, ready to install.
Specifications
| Type | L-Series Quick Coupler / Nipple |
| Material | Alloy body, Plastic shell |
| Seal Material | EPDM |
| Spring Material | SUS316 Stainless Steel |
| Connection Type | Flange |
| Hose Inner Diameter | 3mm (approx. 5/16" – 3/8") |
| Quantity | 1 Piece |
| Country of Origin | Made in China |
Package Contents
- 1 × L-Series Quick Disconnect Hose Joint Coupler
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Note: Monitor color calibration and lighting conditions may cause slight colour variations from product images. Please allow ±1–2mm measurement tolerance. 1cm = 0.39".
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Frequently Asked Questions
Q: What hose sizes is this quick disconnect fitting compatible with?
A: This L-Series quick disconnect coupler is designed to fit hose barb sizes of 5/16" and 3/8", with a nipple hose inner diameter of approximately 3mm. Always verify your hose inner diameter before purchasing to ensure a secure, leak-free fit.
Q: Does the valve automatically stop flow when disconnected?
A: Yes. The built-in shut-off valve is a key feature of this L-Series coupling. When the connector is disconnected, the valve automatically closes to stop fluid flow, preventing spills and minimising fluid loss during line changes or maintenance.
Q: What materials are used in the seal and spring?
A: The coupler uses a high-quality EPDM (Ethylene Propylene Diene Monomer) rubber seal for excellent temperature and chemical resistance, and a SUS316 stainless steel valve core spring for superior corrosion resistance and long-lasting durability.
Q: Is this fitting suitable for fuel, water, or coolant lines?
A: This fitting is designed for general fluid transfer applications. The EPDM seal offers compatibility with water, coolant, and many common fluids. For fuel or chemical applications, always verify fluid compatibility with EPDM and alloy materials before installation.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.