Worm Gear Wafer Butterfly Valve

Product Description Valve body parameters: series of parameters such as nominal diameter, working pressure, process medium, use occasion, and valve body material. 2. Actuator parameters: power supply voltage, control mode, control signal (4-20mA, 1-5V), action mode (electric-open, electric-close) Try to provide the above technical parameters in detail, so that our company’s sales and technical personnel can accurately select the model for you. If you have any questions, you can leave a message to us, and we will do our best to provide you with quality service! The main connection methods of butterfly valve are: flange type and wafer type. It is an important execution unit in the field of industrial automation control. Main advantages: simple structure, small size, light weight, low cost, installed in high-altitude dark tunnels, and can also adjust the flow medium. The fluid resistance is small, the effective flow area of the medium and large diameter butterfly valve is large when fully opened, and the opening and closing is quick and labor-saving. The opening and closing of the disc can be completed by rotating 90 degrees. Because the force of the butterfly wrench on both sides of the shaft is nearly equal, The direction of the generated torque is opposite, so the opening and closing torque is small, and good sealing can be achieved under low pressure. The sealing materials of the butterfly valve include nitrile rubber, fluorine rubber, edible rubber, and PTFE lined so that the sealing performance is good. In all cases, it has excellent sealing performance (up to zero leakage). Butterfly valves can be widely used in industrial process automatic control systems in food, environmental protection, light industry, petroleum, chemical, teaching equipment, papermaking, electric power, etc. Other compatible materials No. Item Material 1 Gasket O-Ring,PTFE,Asbestios Sheet 2 Bushing Self-lubricating Bronze,PTFE,Stainless Steel 3 Body Gray Cast iron,Ductile iron,Cast steel,stainless steel,Nickel-chromium alloy iron,Carbon steel 4 Seating Ring NBR,EPDM,PTFE,VITON,SBR 5 Disc Gray Cast iron,Ductile iron,Cast steel,stainless steel,Nickel-chromium alloy iron,Carbon steel 6 Shaft 2Cr13,1Cr18Ni9Ti,304,316,316L 7 Shaft Pin 2Cr13,1Cr18Ni9Ti,304,316,316L 8 Packing NBR,EPDM,PTFE,VITON,Flexible graphite 9 Packing Gland Ductile iron,Carbon steel,stainless steel,Bronze 10 Worm Gear Cast iron,Ductile iron,Carbon steel 11 Hand Wheel Ductile iron,Malleable cast iron,Carbon steel