Feb 11, 2022 Leave a message

Four types of hydraulic quick coupling

Hydraulic quick joint is a joint that can realize the quick connection or disconnection of pipeline without tools. It has four main structural forms: straight-through type, single-closed type, double-closed type, and safe and leak-free type. The materials are mainly carbon steel, stainless steel and brass.

Straight-through type: Since there is no one-way valve in this connection system, very large flow rates can be achieved while avoiding flow changes due to valves. When the medium is fluid, such as water, in-line quick-disconnect fittings are ideal. When disconnecting, intermediate fluid transfer must be stopped beforehand

Single-closed type: A single-closed type quick-change joint, the plug body is a straight-through type; when the connection is disconnected, the one-way valve in the joint body is immediately closed, which effectively prevents fluid leakage. Single Closed Quick Couplings Ideal for Compressed Air Equipment

Double-closed type: When the double-closed quick-change joint is disconnected, the one-way valves at both ends of the joint are closed at the same time, while the medium remains in the pipeline and the original pressure can be maintained

Safe and non-leakage type: The valve in both the joint body and the plug body is flush with the end face, with minimal residual dead angle. This ensures that when disconnecting, there is no leakage of the medium. This design is especially suitable for corrosive media or sensitive environments, such as clean rooms, chemical plants, etc.


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