North Jiangsu Lan Ou butterfly valve butterfly diagram prices

江苏兰 valve General Equipment Co., Ltd. is a professional research and development, production and sales of valve actuators tech enterprises, the company passed the IS09001-2000 quality system certification, product certification through the national explosion-proof electrical products for Quality Supervision and Inspection Center, made explosion-proof card. And obtain coal safety certificate. Network card also has power accessories, is China Association of water supply and drainage equipment. Q jaw electric device is connected to the electrical equipment and valves, power plants and Normal divided into two kinds, generally for the ordinary type, if the valve has a special connection to be made special. Jiangsu Lan valve General Equipment Co., Ltd. specializing in the production of the part-turn valve actuators, referred to as Q-type electrical equipment. The valve and turn it on, turn off or adjust the drive control device for butterfly valves, ball valves, plug valves and dampers, and so do 90 ° rotation of the valve. This series of electric remote control device can also be on-site operation. Widely used in electric power, metallurgy, petroleum, chemical, food, textile, paper, pharmaceuticals, water and sewage treatment and other industries. Seal is in the closed valve actuators Oil seals prevent the ingress of sand, dust, water vapor and other contaminants and lubricating oil leakage, and play a good seal. In the selection of seal material, you should take into account the material temperature range of adaptability to seal, compatibility, seal lip of the working medium to the rotating shaft rotates at high speed following property. The main requirement of the oil seal: sealing effect, high reliability, low coefficient of friction, easy to install, compatible with the medium to be sealed.江苏兰 valve General Equipment Co., Ltd. is a company specializing in research and development, production and marketing of high-tech enterprises valve actuators, explosion-proof electrical products through national certification of product quality supervision and inspection center, made explosion-proof certification. And obtain coal safety certificate. Q-type valve electric actuator torque control mechanism: When the output shaft torque is subject to certain post, in addition to the rotation of the worm axial displacement outside but also from the rack on the worm gear drive shaft, when the output torque is increased to torque setting , then fastened to the shaft of the cam gear so that micro switch operation, thereby cutting off the motor power, the motor is stopped, in order to achieve the electric actuator output torque control, to achieve the purpose of protecting the valve.