Changzhou City, Xiao source Machinery Co., Ltd. metering pump is a rigorous process to meet the various needs of flow can be infinitely adjusted in the range of 0-100%, used to transport liquids (especially corrosive liquid) A special displacement pumps. Metering pumps, also known as quantitative pump or proportional pump. Metering pumps belong to the reciprocating displacement pump metering pump seal, for accurate measurement, the stability of precision metering pumps usually requires no more than ± 1%. With modern industry towards automation, remote automatic control of the evolving situation, the metering pump supporting strong, adapt to the medium (liquid) wide advantage seems particularly outstanding. Meaning representatives say back pressure valve valve function due a certain pressure, the pressure can generally be adjusted. It can be used to control the flow of air, water, steam, corrosive media, mud, oil, liquid metals and radioactive fluids and other types of media. Opening and closing member is a disc-shaped valve plate, the valve body rotating around its own axis, so as to achieve the purpose of opening and closing or adjusting. Cut off from the main pipe and the throttle effect. The most commonly used system, fluid metering dosing system, hydraulic control systems, chemical reaction conditions, the critical state of state control. Basically divided into two parts, adjust and overcurrent. Back pressure valve by spring force built to achieve action: when the system pressure than the set pressure hourly metering pumps, diaphragm under the action of the spring force of clogging the pipeline; when the system pressure is large than the set pressure, the diaphragm compression spring Metering pump performance, piping connected, through the liquid back-pressure valve. Back pressure valve with a check valve structure similar to, but larger than the one-way valve opening pressure in between 0.2 to 1.6 MPa. Under pressure piping or equipment container limbo, back-pressure valve to maintain the required pipeline pressure, the pump output flow normally. Also at the end of the pump due to gravity or other effects often occur siphon phenomenon, this back-pressure valve can be cut due to fluctuations in flow rate and pressure of the siphon generated. For metering pump or the like at a low volume pump system pressure, appears excessive delivery. To prevent similar problems, we have the outlet metering pump at least 0.7Bar backpressure, usually by installing a back pressure valve in the metering pump outlet to achieve their goals. Metering pumps | Changzhou Xiao source Machinery | hydraulic diaphragm metering pumps supplied by Changzhou City, Xiao source Machinery Co., Ltd .. Metering pumps | Changzhou Xiao source Machinery | hydraulic diaphragm metering pumps Changzhou City, Xiao source Machinery Co., Ltd. (www.czxiaoyuan.com) (www.czxiaoyuan.com) this year introduced a new upgrade, the above picture is for reference only, please dial this page or on the telephone picture to obtain the latest information, contact: Xueju Ping.