Home > Product > Quick Release Coupling (QRC) > Types of Quick Release Couplings > Single Shut-Off Quick Release Coupling
Perfect Engineers presents a cost-effective and reliable range of Single Shut-Off Quick Release Couplings (QRCs) tailored for low-to-medium pressure fluid systems. These couplings are ideal where disconnection without full fluid containment is acceptable—making them widely used across pneumatic tools, water lines, and light-duty hydraulic systems.
A Single Shut-Off QRC features a valve only on the socket (female) side. When disconnected, the valve closes on the socket while the plug side remains open. This simplifies the design, reduces cost, and is ideal for non-hazardous media like air or water.
| Parameter | Specification |
|---|---|
| Size Range | 1/4” to 1” |
| Shut-Off Type | Valve on Female (Socket) End Only |
| Pressure Rating | Up to 3000 PSI |
| Media | Air, Water, Coolants, Inert Gases |
| Material Options | Brass, SS 304, SS 316, Aluminium |
| Temperature Range | -20°C to +120°C |
| Threads | BSP, NPT, UNF, Metric |
| Compliance | ISO 6150, DIN compatible |
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| Feature | Single Shut-Off | Double Shut-Off |
|---|---|---|
| Valve on Both Ends | ❌ | ✅ |
| Cost | Lower | Higher |
| Fluid Containment | Partial | Full |
| Ideal Media | Air, Water | Hydraulic Oil, Fuel |
UAE, Sri Lanka, Kenya, Malaysia, Vietnam, Nigeria, Saudi Arabia, Egypt, Oman
Mumbai, Pune, Delhi, Ahmedabad, Baroda, Coimbatore, Chennai, Hyderabad, Ludhiana
Yes, for light-duty or low-pressure hydraulic systems only.
Yes, ISO 6150 and DIN equivalents are supported.
Recommended only for non-hazardous or inert gases.
Single shut-off is more economical due to simpler valve design.
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