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hydraulic double diaphragm metering pump with alarm
Hydraulic double diaphragm metering pump is based on the traditional hydraulic diaphragm metering pump with an additional layer of diaphragm and equipped with a broken membrane monitoring system, it is a high precision and high safety pump.
Description
Hydraulic double diaphragm type metering pumps are suitable for high-risk occasions that require high safety and precision, and are widely used for metering and delivery of special liquids such as strongly corrosive, volatile, flammable and explosive, highly toxic, highly viscous, malodorous, radioactive, and more.
hydraulic double diaphragm metering pump Main features:
- Double diaphragm design: Hydraulic end uses double diaphragm sealing for no leakage, with vacuum fit during operation to improve metering accuracy.
- Diaphragm rupture monitoring: Built-in sensor detects rupture within 0.2 seconds and immediately sends a feedback signal. The control system automatically shuts down and triggers sound and light alarms. Alarm signals can also be sent to the control room for maintenance.
- Corrosion-resistant materials: Uses PTFE diaphragm with excellent corrosion and high temperature resistance for harsh environments.
- Automatic pressure relief protection: Built-in overload valve automatically relieves pressure to prevent pump overload (not suitable for long-term use).
- Wide applicability: Suitable for environments with high temperature, high viscosity, corrosive, solid content, flammable, explosive, toxic, malodorous, and radioactive media. Supports double/multiple parallel configuration to increase flow, reduce pulses, and enable simultaneous transport of various media as a proportional pump.
- Automation control: Optional high-efficiency metering pump stroke controller for wider automation control.
hydraulic double diaphragm metering pump Advantages:
- Efficient response system: Integrated control system, monitoring sensors, and alarms provide rapid response and higher safety, superior to traditional display meters.
- Adjustable eccentric mechanism: Integral adjustable eccentric mechanism enables 0–100% stepless stroke adjustment, high metering precision and stability, with error controlled within ±1%.
- High pressure tolerance: Single or multi-layer metal diaphragm withstands up to 70MPa pressure.
- Diversified valve components: Offers high-precision check valves (ball, stacked, angle types), valve seat usable on both sides to reduce maintenance cost and improve efficiency.
Common application areas:
- Chemical
- Oil and gas
- Environmental protection
- Electric power
- Pharmaceutical
- Mining
- Metallurgy
- Papermaking
- Other industries







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