Home > Product > Quick Release Coupling (QRC) > Types of Quick Release Couplings > Straight Through Quick Release Coupling
Perfect Engineers manufactures a high-performance range of Straight Through Quick Release Couplings (QRCs) designed for unimpeded fluid transfer in non-critical systems. With no internal shut-off valve, these couplings offer minimal flow restriction—ideal for applications where speed and unrestricted media flow are top priorities.
A Straight Through QRC has no internal valve mechanism in either the plug or the socket. When connected or disconnected, fluid is free to flow without the resistance or sealing provided by shut-off valves. This makes them suitable for non-hazardous, low-pressure media like water, air, lubricants, and coolants.
| Parameter | Specification |
|---|---|
| Size Range | 1/4″ to 2″ |
| Valve Mechanism | None (open bore) |
| Working Pressure | Up to 1500 PSI |
| Material Options | Brass, SS 304, SS 316, Aluminium |
| Temp Range | -10°C to +100°C |
| Media | Water, Air, Coolant, Non-hazardous Liquids |
| Connection Type | Push-fit, Hose-tail, Threaded BSP/NPT |
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| Feature | Straight Through | Shut-Off Coupling |
|---|---|---|
| Flow Restriction | Minimal | Medium to High |
| Internal Valves | ❌ None | ✅ Present |
| Leak Control | ❌ Limited | ✅ Yes |
| Ideal For | Air, Water, Coolant | Hydraulic, Fuel, Oil |
| Cost | Lower | Moderate to High |
UAE, Sri Lanka, Kenya, Vietnam, South Africa, Malaysia, Bangladesh, Oman, Qatar
Mumbai, Pune, Delhi, Ahmedabad, Coimbatore, Hyderabad, Jaipur, Ludhiana, Baroda, Chennai
It’s not recommended for oil or hazardous fluids due to lack of shut-off.
Brass or stainless steel depending on temperature and corrosion risk.
Yes. We provide DIN/ISO-compatible formats and custom threads.
Yes. It’s the most economical QRC option due to its simple valve-less design.
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