High performance diaphragm metering pump

α- Flow series high-performance combined metering pump

It is a high-performance and high-precision hydraulic diaphragm metering pump designed and manufactured in accordance with the 

requirements of API675 standard. Suitable for various complex and demanding working conditions, its performance surpasses 

traditional metering pumps, making it an ideal choice for various high-risk chemical dosing systems with toxic and harmful substances.

 Mainly used in chemical, petrochemical, oil and gas fields, power, papermaking, textiles, energy, municipal water treatment, and 

environmental protection industries, it can also be applied in industries such as biomedicine and food.

Typical dosing medium

Liquefied carbon dioxide, suspension mixture, liquefied petroleum gas, hydrocarbons, triethylaluminum, liquid ammonia, methanol, 

catalyst, strong acid, strong base

Product performance parameters

▶  Hydraulic PTFE diaphragm pump single head maximum flow rate: 10000L/h

▶  Hydraulic PTFE diaphragm pump maximum discharge pressure: 300bar

▶  Hydraulic metal diaphragm pump single head maximum flow rate: 380L/h

▶  Maximum discharge pressure of hydraulic metal diaphragm pump: 700bar

▶  Adjust the ratio to 10:1, with an accuracy of up to 0.5%

▶  Maximum temperature allowed for materials: 200 ℃

▶  Maximum allowable material viscosity: up to 10000cP

Product technical characteristics

Hydraulic end:

▶  Multiple pump head material options: 316SS, PVC, PVDF, special alloy, stainless steel fluorine lining

▶  Multiple pump head options: PTFE diaphragm pump head, metal diaphragm pump head, plunger pump head

▶  Multiple structural options: single diaphragm pump head, double diaphragm pump head, sandwich diaphragm pump head

▶  Multiple detection methods: diaphragm rupture on-site alarm, diaphragm rupture remote transmission alarm, diaphragm rupture on-site remote transmission and alarm

▶  Equipped with an automatic oil replenishment valve, ensuring stable output flow and meeting accuracy requirements

▶  Built in exhaust and pressure relief valve to prevent hydraulic end overpressure, automatic exhaust

▶  Multiple one-way valve configurations: single ball valve, double ball valve, spring loaded ball valve, spring loaded plate valve, etc

▶  Multiple connection methods: threaded connection, flange connection, quick connector connection

▶  Multiple pumps can be connected in parallel to meet the simultaneous transportation of different media

Drive end:

▶  Variable eccentric mechanism adjusts stroke length to ensure smooth pulsation variation

▶  Adopting tapered roller bearings, suitable for high loads and harsh operating environments

▶  Modular design facilitates maintenance and repair of the driving mechanism

▶  High strength worm gear reducer reduces operating noise and ensures stable operation

▶  Oil bath lubrication ensures low wear and high plasticity of drive components

Flow regulation method

Manual stroke adjustment: adjust the stroke length across the full range

Standard configuration: adjustable regardless of running or shutdown status

Electric stroke controller: receives external control signals and adjusts stroke length

▶  Power supply: 220V single-phase power supply

▶  Input signal: 4-20mA

▶  Output signal: 4-20mA/1-5V

Variable frequency speed regulation: Receive external control signals and adjust stroke length

▶  Power supply: 220V single-phase power supply/380 three-phase power supply

▶  Input signal: 4-20mA

Pneumatic stroke adjustment: Receive external air pressure signal and adjust stroke length