China Vane Pump Manufacturers, Suppliers, Factory

Find a huge selection of Precision Metering Pumps from China at Dongkai. Precision Metering Pumps's operating principle: Reciprocation of plunger drives hydraulic oil, and hydraulic oil drives the diaphragm to reciprocate, so as to suck in and discharge the medium.

The small solenoid diaphragm Acid Liquid Chemical Metering Dosing Pump offer precise chemical injection at a low cost. The compact size and simple control make them ideal for water treatment and OEM applications.

Dongkai Automatic Phosphate dosing device is customized system that is ready mounted and ready for use. The standard system is with dosing pumps, piping, storage tank, and other instrument required. The System is usually supplied with a platform skid, something with a ladder. All these dosing skids are designed responding to individual needs and configured in house. We have gained a lot of experience on packaged dosing system design and manufacturering.

The bladder-type damper could be considered as the most traditional and widespread dampener, since it offers a great performance and is manufactured in a very wide range of sizes and building materials. Competitive in price, it is also easy to install. It is specially indicated for clean liquids without suspended solids and of low viscosity. It is manually adjustable and usually installed together with back pressure valves to guarantee the correct pressurisation of the air chamber in relation to the working pressure of the pump, being this assembly very common in diaphragm or piston metering pumps.

Dongkai is a leading China Ammonia dosing equipment manufacturers. Ammonia dosing equipment, which are reciprocating positive displacement pumps, provide the greatest possible metering accuracy. They set the standard for safety, reliability and efficiency, especially when it comes to pumping supercritical fluids.

The Corrosion Inhibitor (scale inhibitor) Dosing Device mainly consists of four parts: solution mixing system, metering and dosing system, safety system and control system. The solid or liquid agent is added into the dissolving box, and then the industrial water is added in proportion to dissolve, and then added to the dosing point by the metering dosing system. The feeding control can be carried out manually or automatically according to the control signal output from the upper system.