Airmax pneumatics supplies spherical disc valves. The spherical disc valves are proved as superior as ball valves and gate valves in all aspects, particularly in weight, space, pressure range, multiple opertions, maintenance ease, torque and economy. Some of the outstanding features of these spherical disc valves are: precise, strong and durable for temperature ranging from 24ºc to 600ºc pressure 10 kg/cm². The size of these disc valves ranges from 1½" to 24" body material is of investment casting, ss, cs, ci, seat ptfe [optional viton, epdm, metal, silicon], and actuation which is manual, pneumatic actuator, gear box, electrical actuator. The five special effects are of compact design [full port offers mass flow simple structure]; light and smooth [takes very short time]; easy maintenance [replaceable seals design]; self-sealing and self-cleaning [under cut disc segment and seal tends to wipe away the material from the sealing area]; and gland packing plate [ensures complete utilisation of gland seals].