One-way valve is the fluid can flow along the inlet and outlet medium can not reflux, 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 Changzhou metering pump overview, 000PSI temperature: -60 ° C ~ + 121 ° C (K, U) Product specification level: PSL3 ~ 4 Performance level: PR1 ~ 2 Material Grade: AA ~ FF Changzhou City, Xiao source Machinery Co., metering pumps type: plunger type 1, the price is low 2, flow rates up to 76 m 3 / h flow in percent in the range of ten to one hundred percent, one percent measurement accuracy of ± pressure up to 350 MPa. When the outlet pressure changes, the flow rate is almost constant. 3, capable of delivering high-viscosity media, suitable for conveying corrosive slurry and hazardous chemicals. 4, seal packing seal, there is a leak, need periodic adjustment filler. Packing and plunger wear, the need for packing rings for pressure washing and emissions. 5, no safety relief devices. Mechanical diaphragm 1, lower prices. 2, no dynamic seals Changzhou overview metering pumps, no leaks. 3, capable of delivering high-viscosity media Changzhou metering pump overview, abrasive slurries and hazardous chemicals. 4, the diaphragm subjected to high stress, lower diaphragm life. 5, the outlet pressure of 2 MPa or less, suitable for a small range of flow; measurement accuracy of ± five percent, when the pressure from the smallest to the largest, the flow changes up to ten percent. 6, no safety relief devices. Hydraulic diaphragm 1, no dynamic seals Changzhou overview metering pumps, no leaks, safety relief devices and simple maintenance. 2, the pressure up to 35 MPa; 10︰1 flow in the range, measurement accuracy of ± one percent; pressure increased by 6.9 MPa and flow decreased five percent to ten percent. 3, higher prices. 4, suitable for medium viscosity media. Dosing pump, high-quality metering pump manufacturers (online consultation), Changzhou metering pump is provided by Xiao source Machinery Co., Ltd. Changzhou City. 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.