The valve structure due to the use of double cylinder valve Shandong, which compared with the single cylinder pneumatic valve, the lifting force increases doubled. This solves some of the valve body the death of a single wedge gate valve pneumatic cylinder gas untapped fundamental ills. And Z641F pneumatic valve offer, since the valve includes a buffer mechanism Z641F pneumatic valve price, can effectively slow down when the light valve is closed, due to the impact caused by the piston down the valve sealing surface and the valve body dray wear the sealing surface, but also Gate cards to avoid the phenomenon of death. The main performance parameters Temperature: -29 ~ 425 ℃ (steel) -40 ~ + 550 ℃ (stainless steel) Body material:. 304.306.316L Flange: JB / T79. GB913. HG20592 Applicable medium: air, water, steam, oil and nitric acid, acetic acid and other corrosive fluids supply voltage: 220VAC, 24VAC input signal: 4 ~ 20mA / 1 ~ 5VDC0 ~ 20mA / 0 ~ 10VDC Z641F pneumatic valve manufacturers, Everbright valve type, Z641F pneumatic valve provided by Shandong China Everbright Limited valve. 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.