Air brake valve is an important component in locomotive’s braking system. Air brake valve JZ-7 or JZ-7G is composed of automatic braking valve, independent braking valve, relay valve, distribution valve, acting valve, equalizing air cylinder, working air cylinder, pressure reducing air cylinder, acting air cylinder, and brake cylinder, etc. RISL can supply all relevant valve components for air brake valves JZ-7 and JZ-7G.
Air brake valves JZ-7 and JZ-7G are widely used in Chinese locomotives. The performance of JZ-7 air brake valve is similar to that of 26-L air brake valve, but JZ-7 air brake valve adds low-pressure overcharge performance and a relay valve with good flushing and exhausting functions. Therefore, the valve fundamentally overcomes the poor charging and discharging performance of 26-L aire brake valve.
The automatic braking valve is equipped with an overcharge position. This position can shorten the initial charging and recharging time of the brake pipe and the auxiliary air cylinder. Due to the role of the relay valve, the charging and exhausting of the brake pipe are much faster than other types of locomotive air brake valves.
In addition to relay valve for air brake valves JZ-7 ang JZ-7G, RISL can also supply other compnents including automatic braking valve, indenpendent braking valve, distribution valve, acting valve, equalizing air cylinder, working air cylinder, pressure reducing air cylinder, acting air cylinder, and brake cylinder, etc.
Besides the above-mentioned valves, RISL can provide all repair kits for the valves, including rubber diaphragms, plunger valves, O-rings, stop valves, gaskets, seals, etc.
If you are interested in relay valves or other air brake valves, or repair kits thereof, or any of RISL products, please do not hesitate to contact RISL or send us an email at risl@zyllgroup.com.