Main features: In order to improve single eccentricity, the double eccentric butterfly valve offsets the center of the valve stem by a distance, so that the line connecting the axis and the sealing point forms an obtuse angle with the sealing surface. During sealing, the sealing surface does not interfere, and the tighter it is closed, the greater the pressure on the sealing surface. Suitable for drainage systems in water plants, power plants, steel plant smelting, chemical industry, water source and spring engineering, environmental facility construction, etc., especially suitable for use in waterway pipelines as regulating and intercepting equipment.
Design standards: API 609 AWWA C504
Product range:
1. Pressure range: CLASS 150Lb ~300Lb
2. nominal diameter: NPS 2~120″
3. Main materials: Carbon steel, stainless steel, duplex stainless steel, alloy steel, nickel alloy steel
4. Connection types: flange type clamp type protruding ear clamp type butt welding type
5. Operation modes: handle, worm gear, electric device, pneumatic device, hydraulic device, gas-liquid linkage device;
Product features:
1. Small size and light weight, convenient for maintenance and installation;
2. Low operating torque;
3. The flow characteristics tend towards a straight line and have good adjustability;
4. independent sealing ring structure, easy to replace;
5. options for customers to choose low-pressure bidirectional sealing;