About Pneumatic Centre Line Butterfly Valve
"Pneumatic Centre Line Butterfly Valve" means a regular Centre line butterfly valve with a pneumatic actuator. Pneumatic valves are designed for quick opening and closing. A well-engineered combination of a powerful pneumatic actuator, fitted to our heavy duty high performance, ball valve. The Pneumatic actuator offers single acting (fail closed or open) or Double acting options. Double acting actuators use an air pressure signal (80-120 PSI) to open and close the valve. Single acting (Spring return) actuators use an air pressure signal (80-120 PSI) to open and springs to close the valve. The valve will fail closed upon loss of air signal. They rotate 90 degrees (quarter-turn) from fully open to fully closed. Sized on 5.5 bar pilot air supply with 30% added safety factor. This unit gives you an exceptional combination, that offers trouble free operation coupled with high performance. We offer this valve in Stainless Steel with various seat permutations and many accessories which can be fitted onto the actuator such as switch boxes, solenoids, positioners and filter pressure reducing valves.
Centre Line butterfly valve divided wafer type butterfly valve, Lug type butterfly valve, Flanged butterfly valve, the valve body material can be made of cart iron, cast steel WCB, stainless steel SUS304, SUS316, SUS316L; the disc can be made of Galvanized, Nylon, Stainless steel SUS304, SUS316, SUS316L, 2507, 1.4529, Aluminum Bronze; the valve seat with EPDM or NBR, PTFE according to difference application status. DN SIZE from DN40-DN1000.
Product Strength: @precise and wearable, @long service, @anti-corrosive and anti-rusting, @widely used on petroluem, metallurgy, etc field.
Baked Varnish: the varnishes are all baked on both ends of the cylinder and the valve body, which is not easy to peel off and with fine appearance.
SS304 Screw: Cylinder body screws are made of stainless steel. Fine workmanship, guaranteed quality.
Stainless Steel Material: The valve body material is stainless steel, not easy to leak, good sealing performance and lighter switching torque.
Sealing Ring: Japanese Dajin seal, strong sealing, light torque