Consistent speed gearbox 3.1 external enclosure materials and corrosion requirements and body principles. 3.2 Measures should be sealed box after box assembly can withstand immersion three meters of water conditions. Opening and closing stopper 3.3 box on the adjustment nut should be in cabinets or located outside the box, but need special tools available jobs. 3.4 Drive structural design is reasonable Z641F pneumatic valve supplier, open and close valves can only drive shaft rotates, it ran up and down without pneumatic valve manufacturer, bite moderate transmission parts, does not produce open and close with a load when the separation skid. 3.5 Transmission box with the valve shaft seal leak can not be connected to the whole, otherwise the string should be a reliable anti-leakage measures. 3.6 pneumatic valve cabinets no debris, grease should bite protection gear. External corrosion valve pneumatic valve (including variable speed transmission box) inside and outside, at first, blasting sand blasting, non-toxic epoxy powder electrostatic spraying sought, thickness of 0.3mm or more. Large electrostatic spraying toxic epoxy resin valve difficulty should brush, spray similar to non-toxic epoxy paint. And various parts of the body inside the valve plate calls for a comprehensive anti-corrosion Weifang valve, on the one hand immersed in water will not rust, does not produce between two metal electrochemical corrosion; two aspects of smooth surface to reduce drag through the water. 6.3 valve body paint anti-corrosion epoxy resin or health requirements, should detect the appropriate authority of the agency report. Chemical and physical properties should meet the relevant requirements. Weifang valves, valve manufacturers Everbright (certified), pneumatic valve provided by Valve Co., Ltd. Shandong China Everbright. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) Shandong Weifang, ball leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Everbright valve leadership with the staff warmly welcome all inquiries negotiations to create a better future for China Everbright valve.