The GM Series is a high-capacity mechanical diaphragm metering pump designed for demanding industrial chemical dosing applications. With flow rates up to 600 L/h and a robust PTFE diaphragm with dual-diaphragm rupture detection, it delivers safe and reliable performance when handling corrosive, hazardous, and high-viscosity fluids.
Widely used in petroleum, chemical, oil refining, power generation, food processing, environmental protection, mining, water treatment, textile, plastic foaming, papermaking, pharmaceutical, defense, and scientific research institutions.
| Model | Flow Rate (L/h) | Pressure (MPa) | Port Size | Stroke Speed (spm) | Power (KW) | Diaphragm (mm) | Weight (KG) |
|---|---|---|---|---|---|---|---|
| GM-25/1.2 | 25 | 1.2 | DN15 | 72 | 0.37 | 65 | 22 |
| GM-50/1.2 | 50 | 1.2 | 144 | 65 | |||
| GM-85/1.0 | 85 | 1.0 | 72 | 84 | |||
| GM-120/0.7 | 120 | 0.7 | 72 | 114 | |||
| GM-170/0.7 | 170 | 0.7 | 144 | 0.55 | 114 | ||
| GM-240/0.7 | 240 | 0.7 | 144 | 114 | |||
| GM-330/0.5 | 330 | 0.5 | 144 | 114 | |||
| GM-420/0.5 | 420 | 0.5 | 144 | 114 | |||
| GM-500/0.5 | 500 | 0.5 | DN25 | 180 | 114 | ||
| GM-600/0.4 | 600 | 0.4 | 180 | 114 |
| Flow Rate | 25–600 L/h |
| Max Pressure | 1.2 MPa |
| Power | 0.37 / 0.55 KW |
| Stroke Speed | 72–180 spm |
| Diaphragm Size | 65 / 84 / 114 mm |
| Weight | 22 KG |
| Port Connection | DN15 / DN25 |
| Wetted Materials | PVC / PVDF / PTFE / 304 / 316 SS |
| Gearbox Material | High-Strength Aluminum Alloy |
High-strength PTFE diaphragm with excellent corrosion resistance and long service life, suitable for hazardous and corrosive fluids.
Dual-diaphragm design with rupture detection for safe handling of flammable, explosive, toxic, radioactive, and highly corrosive liquids.
Precision check valve structure with accurate metering, compact design, excellent sealing, long life, and high interchangeability.
Supports VFD motor with 4–20mA signal for flow adjustment; compatible with digital controller or stroke controller for external automatic control.
Motor mounted vertically above the gearbox to effectively prevent lubricant leakage and improve transmission reliability.
Widely used in petroleum, chemical, water treatment, food, pharmaceutical, power, environmental protection, mining, textile, papermaking, defense, and research institutions.
The GM Series Mechanical Diaphragm Metering Pump is designed for precise and repeatable fluid dosing applications in a variety of industries, including water treatment, chemical processing, and food & beverage. It is particularly useful for handling corrosive, abrasive, or viscous fluids, and can be customized for specific operational needs with various materials and options.
The GM Series Mechanical Diaphragm Metering Pump controls the flow rate through adjustable stroke length and motor speed. By changing the stroke length or the speed at which the pump operates, the user can precisely set the volume of liquid that is dosed per unit time, ensuring accurate and consistent delivery in chemical metering and other critical processes.
The GM Series Mechanical Diaphragm Metering Pump is built with robust materials and a sealed design that protects against moisture and contaminants, making it suitable for harsh environments. It also features a mechanical diaphragm actuation system that requires no air supply, ensuring reliable operation in remote or challenging locations. Additionally, the pump’s digital metering control can be fine-tuned to prevent over-dosing and under-dosing, which is crucial when handling aggressive chemicals.
Yes, the GM Series Mechanical Diaphragm Metering Pump can handle hazardous chemicals due to its chemical-resistant materials and secure diaphragm design that minimizes the risk of leaks. The pump is available with different wetted parts materials, such as PTFE and stainless steel, which are compatible with a wide range of chemicals, including acids, bases, and solvents. It also complies with safety standards and can be equipped with a burst diaphragm detection system to ensure safe operation.
Regular maintenance of the GM Series Mechanical Diaphragm Metering Pump includes checking and replacing the diaphragm, ensuring the pump is properly primed, and cleaning the suction and discharge lines. It is recommended to follow the manufacturer's maintenance schedule to perform these tasks, which will help in extending the pump’s lifespan and maintaining its performance. The pump is designed for easy access to internal components, making routine maintenance quick and straightforward.
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