The positioner uses a nozzle-flap device and a feedback servo mechanism (a system of springs and levers) to bring the control force and the feedback force into equilibrium when the pneumatic actuator (valve) reaches the position corresponding to the control signal
Les actionneurs pneumatiques 4m310-08 24V sont utilisés pour le contrôle des systèmes pneumatiques dotés d'une surface d'accueil NAMUR pour l'installation d'actionneurs à travers des trous traversants dans le boîtier
5 56 210 8-М16 260 DN150 141 213
des industries alimentaires et minières
Technical parameters of Water Butterfly Valve Elephant WBV1331E-2W-F-H
water butterfly valve elephant wbv3434pf 2w fb h body material carbon steel disk material carbon steel seal ptfe pneumatic actuator pa sa with return springs For welding The positioner uses a nozzle-flapRotary disc gate valve is designed for use as shut off or regulating valves for flow control in heat supply systems, water supply systems, in technological processes of food, chemical, oil and gas, pulp and paper and other industries. Operating principle: The valves are opened and closed by turning the disc by 90. Opening is performed by turning the handle anti clockwise, closing clockwise. The peculiarity of the gate valves of this series is the