Pressure gauge pressure gauge structural principle by the measurement system, indicating system, magnetic electrical contact device, housing, adjustment device and junction boxes (plug seat) and other components. General pressure gauge is used for measurement of copper and copper alloys corrode gas, negative pressure of the liquid medium, stainless steel pressure gauge for measuring corrode stainless steel gas liquid medium plus or minus pressure and issued when the pressure reaches a predetermined value signal, turn the control circuit medical gas suction, automatic control of alarm was reached purpose. Electrical contacts operating principle is based on the Bourdon tube measuring system under pressure measured media, forcing the end of the spring tube to produce the corresponding elastic deformation of a displacement of the rod by means of the transmission gear mechanism and to amplify, by instructions on fixed gear (with contacts) will be measured by the value indicated on the dial. At the same time, when it and the contacts (upper or lower) to set the pointer on the contact (moving off or moving together) instantaneous, resulting control system circuitry to disconnect or connect, to achieve automatic control and hair The purpose of the alarm signal. Ball is a gas pipe network dedicated valve ball · In addition to its ordinary functions also flame retardant, good conductive properties of medical gas manifolds, heat and fast, compact, anti-oil, safe and reliable · backstop Valve (One-way valve): check again return valve (13), said non-return valve, check valve, check valve or check valve, whose role is to ensure that the line of medium directional flow without backflow function. Bottom valve pump suction pipe also belongs to check class. Check valves are automatic valves pressure 1.6 ~ 25MPa / Class150-2500 / 2.0-42.0MPa Operating temperature -29 ~ + 550 ℃, the material is usually: WCB ,. cast iron HT200, HT250, QT350, QT450 medical gases Air machine, steel WC6, WC9 medical gases, CN7M stainless steel have CF8 (M), CF3 (M). Forged have A105, F304 (L), F316L and other medical gases medical gas compressor _ _ by Hebei Hebei Ericsson Ericsson Medical Engineering Limited. Ericsson Hebei Medical Engineering Co., Ltd. (www.hslixin.com) strong, credible, Hebei Hengshui medical device manufacturing equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hebei Ericsson and you hand into the brilliant, for a better future!