The actuator and adjustment mechanism of the stainless steel pneumatic actuator are a unified whole. Actuators include membrane, piston, fork and rack and pinion. The piston has a long stroke and is suitable for occasions with high thrust; however, the diaphragm type has a very small stroke and can only directly drive the valve stem. The fork type pneumatic actuator has the characteristics of large torque and small space. The torque curve is more in line with that of the valve, but not as pretty; usually for high torque valves. The rack and pinion pneumatic actuator has simple structure, stable and reliable action, and is safe and explosion-proof. Widely used in power plants, chemical industry, oil refining and other production processes with high safety requirements.
Stainless steel pneumatic actuator (double acting)/PSR (single acting) series pneumatic actuator, all parts of the product are made of CF8 or CF8M stainless steel, which can be used for a long time in a highly corrosive environment. F4 seals not only have good corrosion resistance, but also have good wear resistance, which can greatly increase the service life of this series of actuators, which is 3-5 times that of ordinary actuators. The product adopts rack and pinion transmission structure, widened guide rail PTFE slider design, which greatly improves the output torque output efficiency. The two-way angle adjustable range is ±10°, which can meet the needs of various rotary valves. The bottom connection complies with ISO5211 standard and can be installed directly on top of ball valves, butterfly valves, plug valves, etc. The top and side solenoid valve interfaces of the actuator conform to the mamur norm standard, which facilitates the installation of solenoid valves, tees, limit switches and other control accessories. The size of the top installation conforms to the NAMUR standard, the size of the air source interface conforms to the NAMOR standard, no need to install an adapter plate, and the size of the bottom mounting hole conforms to the ISO5211 and din3337 standards, which is convenient for installing accessories such as solenoid valves and feedback devices. It is suitable for working conditions with high anti-corrosion requirements, and can completely replace similar imported products, especially for offshore drilling platforms, shipbuilding, medicine, food hygiene and other fields.
