Product features of explosion-proof pneumatic butterfly valve
Explosion-proofpneumatic butterfly valveIt is a valve equipment composed of pneumatic actuators and butterfly valves. Pneumatic butterfly valve is made of a circular butterfly plate rolling with the valve orange for opening and closing. Pneumatic valves that complete the activation action are mainly used as block valves. They can also be planned to have the function of conditioning or section valves and conditioning. Butterfly valves are increasingly used in low-pressure large and medium-sized pipelines.
1. The primary structure of explosion-proof pneumatic butterfly valve is connected with pneumatic actuator and valve. The equipment is explosion-proof electromagnetic directional valve with voltage AC220V or AC380V and connected with 5kgf/cm²; The valve can be controlled by the air source of left and right pressure, which is suitable for flammable and explosive occasions.
2. The valve adopts the mid-line structure without partial pain planning, which has the characteristics of significant low operating torque and is economical when equipped with electric equipment. The rubber lining structure is selected, the circumferential sealing surface of the butterfly plate is precision machined to a high finish, the friction coefficient to the rubber valve seat is extremely low, and the service life of the valve is long. The flow characteristics of the sealing surface of the valve plate are linear, with small flow resistance coefficient and small valve flow resistance; the unique planning of molded rubber seat has excellent balance and support, useful to prevent the damage to the rubber caused by uneven force, the valve at the fully closed position, the rubber is in a better compression condition to adhere to zero leakage.
3, the valve ductile iron shell surface can choose high temperature electrostatic spraying epoxy resin powder coating, coating has high corrosion resistance, and ductile iron substrate with high bonding strength, coating degree of 0.2-0.5mm.
Explosion-proof pneumatic butterfly valve is suitable for flammable and explosive gas, liquid, dust and other media, and the explosion-proof grade is EXDII BT4 explosion-proof type. Can be widely used in water supply and drainage, sewage, water treatment and environmental protection, food, heating, gas, ships, water and electricity, metallurgy, energy systems and textile and other occupations.