One-way valve is the fluid can flow along the inlet and outlet medium can not reflux mechanical diaphragm metering pumps, commonly known as the one-way valve. Also known as a check valve or check valve check valve. For the hydraulic system to prevent reverse flow of oil flow, or compressed air for pneumatic system to prevent reverse flow. Way valve straight and right-angle type two. Straight-way valve with threaded connections installed in the pipeline. Right Angle check valves with threaded connection, flange type connectivity and connecting three forms. Nominal Diameter: 21/16 "~ 41/16" Working pressure: 2,000 to 15 metering pumps, 000PSI temperature: -60 ° C ~ + 121 ° C (K, U) Product specification level: PSL3 ~ 4 Product Performance Level: PR1 ~ 2 Material Grade: AA ~ integrated automatic dosing device FF Changzhou City, Xiao source Machinery Co., Ltd. is an administration tool, stirring, transmission fluid, automatic control in one complete set of equipment, for the need to vote plus corrosion inhibitors, scale inhibitors, bactericides circulating water system for water treatment precise dosing and metering agent. In the water supply, wastewater treatment process, often adding a variety of chemical agents as scale, biocide, coagulation, flocculation with diaphragm metering pumps, in order to achieve the purpose of purifying water. These agents have solid particles, liquid, adding the process must be dissolved, and diluted by adding quantitative ratio in order to obtain the best results, so the dissolved drug dosing device is commonly used in water treatment engineering equipment. Automatic dosing device by the metering pump, the pot, blender, stand, cabinet and other components, is the foundation of our company is equipped with metering pump, combined with the actual situation of the development of the domestic water system, advanced water treatment system to automatically increase equipment and medicine. Users on demand Optional: blender, PLC, temperature, PH value and conductivity online monitoring and other functions. Mechanical diaphragm metering pumps, Xiao source Machinery (certification), Wuxi, Changzhou metering pump is provided by Xiao source Machinery Co., Ltd .. Changzhou City, Xiao source Machinery Co., Ltd. (www.czxiaoyuan.com) (www.czxiaoyuan.com) Changzhou, Jiangsu, reciprocating pumps, metering pumps leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Xiao source Machinery leadership with the staff warmly welcome all inquiries negotiations to create Xiao source Machinery better future.