Definition

The hydraulic end of the pump is composed of a diaphragm to form the working chamber, and the periodic deformation of the diaphragm is used to replace the reciprocating motion of the piston (plunger) in the pump, becoming a diaphragm pump. For example, the periodic deformation of the diaphragm is driven by the reciprocating motion of the piston in the hydraulic working chamber, which is called a hydraulic diaphragm pump.

Characteristics

1. No dynamic seal, no leakage, easy maintenance

2. The working pressure can reach 70MPa, the measurement accuracy can reach ± 1%, and the flow range of a single cylinder pump is 0.2L/h-25000L/h

3. The measurement accuracy is better than that of mechanical diaphragm pumps, and the sealing performance is better than that of plunger pumps

4. Flow rate control is achieved by adjusting stroke length and variable frequency speed regulation, and remote automatic control can be achieved with stroke regulator or variable frequency

5. The operating temperature of the medium should not exceed 100 ℃ and should not be lower than -30 ℃, otherwise it will affect the service life of the diaphragm

6. The application of the new three valve structure and limit oil replenishment mechanism ensures the filling of hydraulic oil in the hydraulic chamber, avoids excessive oil replenishment, and prevents hydraulic shock, thereby balancing the forces on both sides of the diaphragm and improving its service life. The diaphragm life can be increased to over 8000 hours

7. When conveying special media, a diaphragm with a diaphragm rupture alarm device can be used to prevent accidents caused by the mixing of media and hydraulic oil when the diaphragm ruptures

Application

Suitable for general room temperature water up to strong corrosion, volatility, crystallization, flammability, explosiveness, toxicity, toxicity, odor, strong corrosiveness, high specific gravity, moderate viscosity, radioactivity, and other valuable liquids. At the same time, it can also transport suspended liquids. In order to prevent accidents caused by the mixing of media and hydraulic oil after diaphragm rupture, and for flammable, explosive, highly toxic, and valuable liquids, a double diaphragm metering pump with diaphragm splitting alarm device can be selected.

Selection

Installation