Because of its advanced technology, reliable performance, valves, operating switching and easy maintenance, has been petroleum, chemical, metallurgy, electric power, shipping and other departments as pipeline gas, liquid medium switching device and widely used. The main performance parameters Nominal pressure: 1.6,2.5.4.0.6.4MPa temperature: -29 ~ 425 ℃ (steel) -40 ~ + 550 ℃ (stainless steel) Nominal diameter: DN50 ~ 800mm Body material: 304.306.316L.WCB .HT200 connecting flanges: JB / T79. GB913. HG20592 Medium: air, water, steam, oil and nitric acid, acetic acid and other corrosive fluid mode of action: cut-off, adjustment, manual control supply voltage: 220VAC, 24VAC input signal: 4 ~ 20mA / 1 ~ 5VDC0 ~ 20mA / 0 ~ 10VDC pneumatic valve structural features 1, the valve is mainly covered by the valve body, valve, gate, stem, seals, double cylinder and piston rod, partitions along with buffering mechanism, manual, pneumatic - manual conversion installation and valve cover some of the filler and other components. 2, the upper end of the piston stroke of the line to be on top of the back to the hearing, Weifang stainless steel valves, so that the sender; the lower end of the piston stroke can be the top row to the hearing at the next time, so that the sender, as the valve opening and closing information on the central operating room simulation dashboard display. Valve shaft packing ① As the pipe network in the pneumatic valve, normally not open and close frequently, requiring the filling in a few years of inactivity, not aging filler, stainless steel valves wholesale, long-term effects remain sealed; ② fill valve shaft should also bear the frequent opening and closing, good sex Shandong stainless steel valves, sealing effect; ③ In view of the above requirements, fill valve shaft does not seek to change or 10 years for life without replacement; ④ Packing For replacement, pneumatic valves should be designed to have water pressure Availability under the measure replaced. Stainless steel valves, valve, the valve is provided by Shandong Everbright Everbright Valve Co., Ltd., Shandong. Shandong Everbright Valve Co., Ltd. (www.sdgdfm.com) located in Weifang City, Shandong Province, Cravens District Bao Tong Street North Makers Industrial Park. Scraps and development in the wave of market economy, the current Everbright valve has a high profile in the ball, and enjoys a good reputation. Everbright valve made whole network business alliance certification, marking our service and management level has reached a new height. Everbright valve staff willing to work with all people of insight and common development, for a better future.