China Metal Diaphragm Pump Manufacturers, Suppliers, Factory

Find a huge selection of Plastic Air-Operated Double Diaphragm Pumps from China at Dongkai. The Plastic Air-Operated Double Diaphragm Pumps is a new type of pumps. In recent years break-through progress has been made in the diaphragm material, so more and more industrialized countries in the world have adopted such a pump type to replace some centrifugal or screw pumps to be applied in such industries as petrochemicals, ceramics and metallurgy. Plastics Electric diaphragm pump are applicable for low pressure applications, namely the outlet pressure ≥3kgf/cm2.

Hot selling quality High Performance Chemical Diaphragm Pumps with High Flow Capacity Manufacturers and Suppliers. High Performance Chemical Diaphragm Pumps with High Flow Capacity that transmits power using operating oil (silicone oil, etc.) filled between a diaphragm and a piston that serves as the drive source. A built-in relief (safety) mechanism eliminates the need for relief valves and other devices for handling abnormal pressure, making High Performance Chemical Diaphragm Pumps with High Flow Capacity effective for use with fluids that should not be exposed to outside air.

Our Metering Pump Check Valve​ products are recognized and praised by customers all over the world with excellent quality and good reputation!

High precision and reliability Accurate Hydraulic Diaphragm Metering Pumps are highly precise and reliable metering pumps for chemical processes which achieve metering accuracy within ±1% (see Note 1), linearity within ±2% (see Note 3) and feature a driving unit specially designed for long-term continuous operation. Improved cost performance The mechanical efficiency of the reduction gear as well as that of the entire pump is improved. In addition, the employment of a large-capacity pump head and the standardization of high-speed types have further improved the cost efficiency of the pump. Compact and lightweight.

PAC Dosing Systems is the process of adding or administering an amount of PAC into a specific volume of water. It is important to be able to accurately control the ‘dose rate’ for two reasons. Firstly, to ensure there is enough PAC to provide effective treatment. Secondly, to avoid unnecessary wastage of PAC through ineffective dosing practice or spillage. Our PAC Dosing Systems solution, Trans PAC has been developed to offer a flexible, practical solution to PAC Dosing.

Dongkai quality Safety Relief Valve for Back Pressure help to relieve excess pressure on the pump system or maintain pressure at a setted point. Safely relief valve is installed on the outlet pipeline of metering pump. When the system pressure becomes abnormal, safety relief valve protects metering pump from any damages. Back pressure valve shall be installed at the outlet of metering pump in order to reduce siphon and excess feeding, and ensure the metering accuracy of metering pump is not affected. When dosing point is lower than the outlet of metering. Each Valve is diaphragm type with 2-port design, which can be used both as safety relief and back pressure valve