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Tube Fittings
QuickGrip™ Split Ring Fittings
QuickGrip™ joins pipes and tubes without threading, flaring or welding. As the nut is tightened, a tapered split ring grips the pipe while an O-ring makes the seal, giving a strong, leak-tight joint that stands up to the constant vibration of rolling stock. It is built for air brake and pneumatic circuits on railway and metro vehicles.
Design
Split ring, O-ring seal
Pressure rating
20 bar gas, 200 bar liquid
Materials
Carbon steel, stainless steel
Sizes
6 mm to 42.4 mm OD
Key features
No threading, flaring or welding: cut the pipe, deburr it and tighten the nut with two spanners
A grip and seal that hold through constant vibration and pressure cycling
Fully reusable, so joints can be opened for maintenance and remade without replacing the pipe
Keeps the pipe’s corrosion protection intact, and tolerates minor misalignment during installation
Technical specifications
| Design | Tapered split ring grips the pipe; O-ring seal, protected by a washer |
|---|---|
| Pressure rating | Up to 20 bar with gas (pneumatic and air brake service) Up to 200 bar with liquids |
| Temperature range | Set by the O-ringNBR: −30 °C to +120 °C EPDM: −50 °C to +150 °C FKM: −20 °C to +200 °C |
| Materials | Carbon steel and stainless steel |
| Pipe sizes | 6 mm to 42.4 mm OD, including gas pipe sizes from 1/8" to 1-1/4" |
| End connections | BSPP, BSPT, NPT and metric threads |
| Testing | To confirm |
Configurations
Straight union
Reducing union
Male connector
Elbow
Tee
Banjo
Related products
Isolate air and brake circuits on railway rolling stock.
Precision seamless tubing, matched to our fittings.
Clamps that hold tube and pipe runs firm against vibration.
Need a custom solution?
Send us your drawing or specification. Our engineers will work out the right part with you.
