Chemical gear pumps GM-V series

Features of GM-V series

Sealless, Highly Corrosion-Resistant Design

All pump components in contact with the liquid are made of PVC, silicon carbide and fluorine resin, all of which are resistant to most acids and alkalis. The pump uses no seals, which eliminates the risk of leaks.

High-Durability Ceramic Gears

The GM-V’s ceramic gears are highly resistant to abrasion, galling and seizure, ensuring reliable high-speed operation.

Pulsation-Free and Precise Discharge Control

The GM-V causes no pulsation of liquid in high-speed operation. Discharge is proportional to the pump’s rpm speed, which can be precisely controlled by an inverter (frequency converter), thereby allowing liquid metering, transfer and other treatments.

Low Flow Rate, High Discharge Head and Self-Priming

The GM-V’s low flow rate and high head specification make it suitable for many chemical-injection processes. Self-priming up to 1 meter in height is possible.
Note: Self-priming height varies depending on the liquid’s properties and temperature as well as the piping configuration. Please contact your distributor for details on self-priming applications.

Lightweight and Compact

The GM-V’s pump is close coupled to its motor, eliminating the need for intermediate coupling and making the assembly both lightweight and compact. The GM-V’s space-saving design makes it suitable for built-in pump systems.

Examples of applications

• Low flow rate and high pressure applications with chemical solutions
  Automatic injection of coagulant at a constant mixing ratio.
• Pulsation-free metering, injection and transfer of chemical solutions
  Metering of paper-making dye and sodium hypochlorite.
• Easy control of process factors such as flow rate and pressure
  Low-cost, reliable control of rpm levels.
• No need for pulsation dampener or accumulator
  Simple piping without pulsation is possible.
• Bypass piping using a large-flow rate centrifugal pump
  No losses due to bypassing.
• Excellent corrosion resistance against acids and alkalis
  Unlike general-purpose gear pumps, the GM-V’s metallic components never come into contact with liquids and are acid and alkali resistant.
• Designed to make diaphragms unnecessary
  GM-V pumps do not employ any seals or diaphragms.
• Self-priming
  Self-priming up to 1 meter in height (when wet) is possible.

Specifications