Model: JY series hydraulic double diaphragm metering pump

Flow range: 5-10000L/H

Maximum pressure: 40Mpa

Membrane material: PTFE

Pump head material: 304, 316 (options: duplex steel, Alloy C-276, 904, titanium, PVDF, zirconium, etc.)

Motor: 380V, 3PH, 50HZ (options: 110-480V, single-phase, 60HZ, variable frequency/explosion-proof/explosion-proof variable frequency, etc.)

Hydraulic double diaphragm metering pumps are widely used. Suitable for general room temperature clean water until it has strong corrosion, volatility, flammability and explosiveness, high toxicity and odor, high specific gravity, moderate viscosity, radioactive media or other valuable liquids; It can also transport suspended liquids. To prevent accidents caused by the mixing of the medium and hydraulic oil after the diaphragm ruptures, a double diaphragm metering pump with a diaphragm rupture alarm device should be selected for flammable, explosive, highly toxic media, and valuable liquids.

Technical characteristics of hydraulic double diaphragm metering pump

• No dynamic seal, no leakage, easy maintenance.

• The working pressure can reach 40MPa, and the measurement accuracy can reach ± 1%.

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

• The flow rate control is achieved through adjusting the stroke length and variable frequency drive speed, with remote automatic control.

• The operating temperature of the medium should not exceed 100 ℃ and should not be lower than -20 ℃, otherwise it will affect the service life of the diaphragm.

• The application of advanced overload, limit, and oil replenishment three valve mechanisms can not only meet the hydraulic needs of the hydraulic chamber, but also avoid excessive oil replenishment and prevent hydraulic shock, thereby balancing the forces on both sides of the diaphragm and improving its service life, which can be extended to over 8000 hours.

• When conveying special media, a double diaphragm metering pump 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.

• Can be equipped with a digital controller for metering pumps to achieve digitization and enable both local and remote control

• The hydraulic double diaphragm metering pump diaphragm rupture alarm device is mainly used in environments with toxic liquids, explosive hazardous liquids, food safety, hygiene, etc; Its characteristic is to constantly detect the diaphragm working condition of the metering pump during use. Once the diaphragm ruptures, it can issue an audible and visual alarm within 0.2-6S and stop the metering pump from working; (According to the user's usage characteristics, it can be connected to the control room), effectively protecting the safety of use.

Advantages of High Strength Hydraulic Diaphragm Measurement

Unique metering pump crankshaft adjustment mechanism [Invention patent number: ZL.9】

This patent is a metering pump stroke arbitrary adjustment mechanism with a high load-bearing integral structure. Compared with the traditional N-crankshaft, inclined groove flat shaft, camshaft, and parabolic turntable structure, the main transmission shaft and adjustment mechanism adopt a complete machine design, with more parallel transmission and higher concentricity of the adjustment mechanism. They have the characteristics of high load capacity, high repeatability accuracy, etc. The main transmission shaft structure is precise and compact, with higher transmission efficiency and certain cost, energy saving, and economic benefits.