hydraulic double diaphragm metering pump with monitor sensor

Hydraulic double diaphragm metering pumps are based on the technology of hydraulic diaphragm metering pumps, by adding an additional layer of diaphragm and equipped with sensors or instrumentation monitoring system, so as to avoid the risk of accidents caused by the rupture of a single layer of diaphragm. This design integrates a diaphragm rupture monitoring and alarm system, effectively improving the safety of the pump in use.

The double diaphragm design and rupture monitoring alarm system of hydraulic double diaphragm metering pumps provide higher safety in hazardous chemical transfer. In addition, automated control options and flexible configuration of multiple materials ensure stability and long-term reliability under complex working conditions. Widely used in chemical, oil and gas, electric power, and environmental protection industries.

hydraulic double diaphragm metering pump Technical parameters:

Single head flow rate: Qmax = 210 L/H
Pressure range: Pmax = 60 MPa
Standard configuration: material 304, 316, 380V/50Hz
Optional configuration: material 316L, PVDF, 904, 2205, TA, Hastelloy C, etc.; motor frequency conversion, explosion-proof, special voltage and frequency
Diaphragm rupture monitoring and alarm system integrated for improved pump safety

hydraulic double diaphragm metering pump Main features:

Double-layer diaphragm design: Hydraulic end uses double-layer diaphragm sealing for higher security compared to single-layer. The vacuum fitting ensures no leakage and maintains metering accuracy.
Diaphragm rupture monitoring system: Built-in sensors detect rupture instantly (within 0.2 seconds), trigger automatic shutdown and sound/light alarms, and transmit signals to the control room for timely maintenance.
Corrosion-resistant diaphragm: PTFE diaphragm offers excellent corrosion and temperature resistance for harsh environments.
Overload protection: Built-in overload valve with automatic pressure relief; use within normal range for best results.
Wide flow and pressure range: Suitable for high/low temperature, high viscosity, corrosive, solid content, flammable, explosive, toxic, malodorous, radioactive, and other special media.
Parallel use: Double or multiple heads in parallel to increase flow and reduce pulse; supports proportional pumping and synchronized media delivery.
Automation control: Optional stroke controller for precise flow and pressure regulation, supporting wider automation.

hydraulic double diaphragm metering pump Advantages:

High safety and response speed: Real-time monitoring sensors, alarms, and automatic shutdown greatly improve safety and fault response.
High-precision adjustment: Integral adjustable eccentric mechanism, stepless stroke adjustment (0–100%), stability and accuracy within ±1%.
High-pressure carrying capacity: Single or multi-layer metal diaphragm, max working pressure up to 70MPa, suitable for high-pressure, complex fluids.
Durable high-precision check valve: Multiple check valve components; double-sided wear parts reduce maintenance and improve efficiency.
Flexible material selection: Pump head options include 304, 316 stainless steel, duplex steel, Hastelloy C alloy, etc., for corrosive media.

Application fields:

Hydraulic double diaphragm metering pumps are ideal for high-risk operations, especially for transferring corrosive, volatile, flammable, toxic, malodorous, high viscosity, radioactive, or precious liquids.

Chemical industry: Accurate dosing of chemicals and additives.
Oil and gas: Transport of chemical injection fluids, lubricants, etc.
Environmental protection: Treatment of pollutants, wastewater, and harmful media.
Pharmaceutical: Precise delivery of drugs and biological agents.
Mining and metallurgy: Conveying high-viscosity or highly corrosive liquids.
Paper, food and beverage: Accurate control of ingredients, additives, and other substances.