One Touch Quick Coupling Male Socket (SUS)
SM-O
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The Male Socket, fabricated from SUS304, offers versatile connectivity options. It can be coupled with Male Plug, Female Plug, Hose Plug, or PU Plug, depending on the requirements of machines, systems, and equipment. The One-way Quick Shutoff Quick Coupling finds extensive application in industries such as air compressors, pneumatic tools, automobiles, car washing, and shipbuilding.
One-way shutoff quick coupling type include one touch and tradition. One touch type includes safety, male thread, female thread, and hose series.
There are a few different materials, including SUS316, SUS304, steel, and nylon with glass fiber. Stainless features durability, corrosive resistance, high and low temperature resistance as well as anti-oxidation. Steel features longer life than products on the market. Heat treated plugs enhance the impact resistance; hardness up to HRC 45 ~ 50.
Quick Couplings, also known as quick connect and disconnect couplings, quick release couplings, include one-way shutoff, two-way shutoff and two-way shutoff (grease type), one touch quick coupling, straight through type, and camlock type.
Features
- Durable.
- Corrosive resistance.
- High and low temperature resistance.
- Anti-oxidation.
Technical Data
Working Pressure: 15 kgf/cm²
Thread (PT): 1/8" ~ 1"
Hose ID: 1/4" ~ 1"
Tube OD: 6 ~ 12 mm
Seal Material: NBR, Viton *
Dimension

Specification
SM-O One Touch Quick Couplings Male Socket (SUS)| Material | Part No | Thread Size | Dimensions | ![]() | |
|---|---|---|---|---|---|
| P-PT | Ø D | L | |||
| SUS304 SUS316 Steel | SM2-O | 1/4" | 25 | 55 | 19 |
| SM3-O | 3/8" | 25 | 56 | 19 | |
| SM4-O | 1/2" | 25 | 59 | 22 | |
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One Touch Quick Coupling Male Socket (SUS) (SM-O ) – CHIBIN Machine
Since 1980 in Taiwan, CHIBIN Machine makes One Touch Quick Coupling Male Socket (SUS) —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.


