Valves
Isolation Cocks
Our isolation cocks shut off air and brake circuits on railway and metro rolling stock, in suspension, emergency braking and passenger comfort systems, so a circuit can be isolated quickly and safely in service or during maintenance. FSPL introduced them to India’s railway market in 2011.
Pressure rating
Up to 20 bar
Operation
Quarter-turn lever
Sizes
22 mm OD tube; 1/4" to 1-1/4" BSP
Body
Carbon steel, nickel-plated brass
Key features
Quarter-turn lever for fast, positive isolation, in square-body and compact BSP versions
Vented versions exhaust the isolated side of the circuit to atmosphere
PTFE seats and FKM (Viton®) seals around a stainless steel ball and stem
Technical specifications
| Versions | Square-body cock with 22 mm OD single ferrule (DIN 2353) tube ends and cutting rings Compact ball-type cock with BSP female threaded ends |
|---|---|
| Design | Quarter-turn; with or without vent |
| Pressure rating | Up to 20 bar |
| Tested temperature | −15 °C to +60 °C |
| Body | Carbon steel or nickel-plated brass |
| Ball and stem | Stainless steel 304 |
| Seats and gland packing | PTFE |
| Seals | FKM (Viton®) O-rings |
| Sizes | 22 mm OD tube (square body) 1/4" to 1-1/4" BSP female (compact) |
| Operation | Lever, quarter turn |
| Application | Rolling stock: air and brake circuits on railway and metro vehicles |
| Testing | Independently endurance tested; see the test certificate below |
Configurations
Square body, 22 mm tube ends
Compact, BSP female 1/4" to 1-1/4"
With vent
Without vent
Related products
Split ring fittings that join pipes without threading or welding.
Bite-type fittings for metro rail and hydraulic systems.
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.
