Gm Metering Dosing Pump

A mechanically driven diaphragm metering (dosing) pump engineered for precise, reliable chemical injection and liquid transfer in industrial processes. Designed for continuous operation and easy maintenance, this pump is suitable for corrosive, viscous and hazardous liquids where accurate flow control and leak-free performance are required.

Key specifications

• Flow range: 0–500 L/h
• Pressure rating: up to 1.2 MPa
• Power / supply: 110 V / 220 V / 380 V, 50/60 Hz
• Drive options: two-phase or three-phase standard motor; available with explosion-proof motor
• Protection rating: IP54 or IP55
• Ambient operating temperature: -30 °C to 80 °C

Wetted parts and materials

• Pump head options: SUS304, SUS316, PVC, PTFE
• Diaphragm: multi-layer composite construction — outer layers of acid-resistant PTFE (Teflon) and EPDM elastic rubber, reinforced with a SUS304 support core and nylon fiber reinforcement for extended life
• Check valves: SUS304, SUS316, PVC, PTFE
• Valve balls: ZrO2 (zirconia), SUS304, SUS316, or ceramic

Performance and features

• Mechanical diaphragm drive provides safe, stable operation with no shaft seals (minimizing leak risk)
• Robust sealing and simple assembly for fast maintenance and reduced downtime
• Capable of handling high-viscosity fluids, strong corrosives and other aggressive or hazardous chemicals
• Flow adjustment available by changing stroke length or by using motor frequency control (VFD)
• Durable construction and material options let you match wetted components to application chemistry

Typical applications

Widely used across petrochemical, chemical processing, power generation, metallurgy, mining, shipbuilding, light industry, agriculture and defense sectors for dosing, chemical injection, pH control, corrosion inhibition, and other metering tasks.

Why choose this pump

This mechanical diaphragm metering pump combines precise dosing capability with robust materials and flexible drive options, making it suitable for demanding industrial environments where reliability, chemical compatibility and ease of maintenance are priorities.