Structural features 1 Indicator The indicator complies with the VIDNIE3845 NAMUR standard and is easy to install limit switches, positioners and other accessories. 2 Output shaft The design of the one-piece forged output shaft of nickel-plated alloy steel complies with NAMUR, IS05211, and DIN3337 standards. Special standards can be customized according to customer requirements. 3. The cylinder body is extruded from high-quality aluminum alloy, and the surface is hard anodized and Teflon coated. 4. End cover: Aluminum alloy die-casting, surface anodized hardening, metal polyester coating. 5 Pistons are made of cast aluminum with hard oxidation treatment. 6. Adjustment bolts. Two independent stroke adjustment bolts can easily and accurately adjust the opening and closing angle of the valve within +5°. 7. The piston ring is made of low-friction, long-life composite material and is easy to repair and replace. 8. Sealing: Use nitrile rubber at normal temperature. Under high and low temperature conditions, use special seals according to customer requirements. 9. The air source interface complies with Namur standards and can directly install Namur standard solenoid valves. 10. All fasteners are made of stainless steel and comply with Namur standards, and can be directly installed with Namur standard electromagnetic traps.