Two-way Shutoff Quick Couplings Plug (Grease)
PTT-G
Two-Way Shutoff Quick Release Couplings, Two-Way Shutoff Quick Coupler, Double Ways Shutoff Quick Release Couplings
The Two-way Shutoff Quick Couplings (Grease type) is suitable for use in grease fluid.
The couplings are employed in heavy machinery, such as metal recycling equipment, equipment operation, or the maintenance of hydraulic systems. Their purpose is to prevent fluid loss and leakage during the repetitive process of connecting and disconnecting pipes. These couplings find application in various industries including agriculture, hydraulic tools, construction, fluid conveyance, transportation, chemical engineering, oil sectors.
Dimension

Specification
- Connection Type: Female Thread
- Thread Size (PT): 1/4" ~ 2"
- Material: SUS304, Brass
- Seal Material: NBR, VITON
Working Pressure | SUS304 | Brass |
---|---|---|
1/8" ~ 3/8" | 70 kgf/cm² | 50 kgf/cm² |
1/2" ~ 1" | 45 kgf/cm² | 30 kgf/cm² |
1-1/4" ~ 1-1/2" | 30 kgf/cm² | 20 kgf/cm² |
2" | 20 kgf/cm² | 15 kgf/cm² |
Part No | Thread Size | Dimensions | h HEX | |
---|---|---|---|---|
P-PT | I | L | ||
PTT2-G | 1/4" | 21.3 | 37 | 17 |
PTT3-G | 3/8" | 23 | 41 | 22 |
PTT4-G | 1/2" | 28.5 | 47 | 27 |
PTT6-G | 3/4" | 34 | 53 | 35 |
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Two-way Shutoff Quick Couplings Plug (Grease) (PTT-G ) – CHIBIN Machine
Since 1980 in Taiwan, CHIBIN Machine makes Two-way Shutoff Quick Couplings Plug (Grease) —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.