Quick Disconnect Coupling | QDC
Hyloc Quick Disconnect Couplings (QDC) are high-performance hydraulic components designed for systems that require frequent and rapid connection and disconnection of fluid lines.
- Operating Pressure : High Performance Range
- Application : Industrial & Mobile Systems
About this item
The Hyloc Quick Disconnect Couplings (QDC) are poppet-type valves designed for high-pressure hydraulic systems that require rapid connection and disconnection without fluid loss. These couplings are typically manufactured in carbon steel with a zinc-plated surface for durability and are engineered to prevent flow until the connection is fully secured.
| Category | Details & Specifications |
|---|---|
| Valve Design | Self-sealing poppet type; ensures zero leakage during disconnection and unrestricted flow when connected. |
| Standard Compliance | Designed to meet ISO 7241-1 Series A for worldwide interchangeability. |
| Operating Pressure | Varies by size, typically ranging from 200 bar to 800 bar (up to 800 bar for G1/4 threads). |
| Body Material | High-grade Carbon Steel with Trivalent Zinc plating; SS 316 available upon request. |
| Seal Material | Standard Nitrile (NBR); FKM (Viton) available for higher chemical or temperature resistance. |
| Fluid Temperature | Range of -20°C to +80°C for standard mineral oil applications. |
| Thread Options | BSPP (G) and Metric (M) female threads (e.g., G 1/4 to G 1; M14×1.5 to M33×2.0). |
| Hydraulic Medium | Compatible with mineral oils with a viscosity range of 10 cSt to 380 cSt. |
| Key Features | Compact slim design, simple hand-operated locking sleeve, and prevention of premature flow before full closure. |








