Self-locking One-Way Shutoff Quick Couplings Male Socket
SM-SO
One-Hand Operation Quick Coupling, One-Hand Operation Quick Coupler
Our Self-Locking one-way shutoffQuick Coupling is specifically engineered to support frequent, secure connections and disconnections, making it ideal for demanding environments such as air compressor systems.
In industries where uninterrupted fluid or air flow is essential during operation, our safety male socket is a reliable solution for equipment with female connectors. Its robust design ensures performance without compromising safety.
This quick coupling features a user-friendly, easy-to-install design with a one-hand operation mechanism, enhancing convenience and efficiency during use. The self-locking function provides added protection by preventing accidental disconnection, making it a smart choice for safety-critical applications.
Crafted from stainless steel, this component boasts a range of material attributes, including rust resistance, corrosion resistance, durability, and impressive toughness, among other qualities.
Features
- Safe and automatic locking mechanism.
- Labor-saving.
- Easy Installation and disassembly.
- Patent protection.
Technical Data
Working Pressure: 30kgf/cm²
Material: SUS304
Dimension

Specification
SM-SO Safety One Touch Quick Couplings Male SocketPart No | Thread Size | Dimensions | ![]() |
||
---|---|---|---|---|---|
P-PT | Ø E | Ø D | L | ||
SM2-SO | 1/4" | 7 | 28 | 63 | 22 |
SM3-SO | 3/8" | 9.6 | 28 | 64 | 22 |
SM4-SO | 1/2" | 10 | 28 | 67 | 22 |
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Self-locking One-Way Shutoff Quick Couplings Male Socket (SM-SO ) – CHIBIN Machine
Since 1980 in Taiwan, CHIBIN Machine makes Self-locking One-Way Shutoff Quick Couplings Male Socket —compression, push-in pneumatic, hydraulic, quick couplings, and precision nozzle and needle valves for medical and semiconductor use.
Our fittings are ISO-certified and TTQS-awarded, with MIL-STD-105E quality checks. We stock 10,000+ standard parts and offer OEM/ODM custom runs up to 3,000 pcs.
With advanced CNC manufacturing and 40+ years of experience, CHIBIN Machine meets tight specs for surface finish, thread standards, and leak-tight testing. Get a fast quote today.