CENTRAC™ Series Metering Pumps
Better accuracy and greater responsiveness
CENTRAC metering pumps are engineered to operate with the highest level of performance and accuracy.
CENTRAC pumps combine a unique constant stroke length drive mechanism and electronic variable speed drive technology. The unique drive system provides a steady state accuracy of +/- 0.5% over the entire turndown range. This is twice the accuracy of the standard +/- 1% of most metering pumps. Greater accuracy means better control of the treatment process and more efficient chemical usage.

In addition, these pumps offer a 100:1 turndown ratio. The advanced design enables the pumps to respond instantly to changes in dosage rate, making it the ideal metering pump for a wide range of flow rates in water and wastewater treatment applications.
Benefit:
- Simple but robust design for reliability
- All moving parts are submerged in oil
- Instant response to dosage changes
- Precise feedback signal
- Efficient drive sizing
- Mates with advanced HPD liquid end for maximum performance
- Economical duplex configuration availability
- Compact design with a higher capacity in a small footprint
- Low maintenance
MAXROY® Series Metering Pumps

Rugged and reliable For the toughest chemical processing applications
MAXROY series is a rugged, industrial grade of metering pumps designed for applications up to 290 gph (1,100 l/h) at pressures up to 406 psi (28 bar). Its cast iron housing with chemical resistant coating enables the pump to be used in the harshest environments.
Milton Roy G Series/Macroy

Product Description:
The G series metering pump, also known as the MACROY® pump, is an ideal pump for water treatment applications. It is capable of handling pressures up to 175 psi (12 bar) and flow rates up to 310 gph (1181 l/h). Combining heavy-duty industrial drive technology with state-of-the art design and manufacturing processes, this mechanically-actuated diaphragm pump eliminates flow restrictions, reduces the possibility of hydraulic oil contamination of process liquid, and ensures smooth output.
Applications:
The G-Series or MACROY metering pumps are perfect for chemical dosing in water and waste treatment facilities, industrial process, agriculture, and many more applications. These pumps reliably inject chemicals such as ferric chloride, aluminum sulfate, polymers, alkalis, sodium hydroxide, acids, anti-scaling and anti-foaming agents and many more for coagulation/flocculation, slurry treatment, pH control and adjustment, and desalination.

API674-compliant pump
The Poweroyal positive-displacement reciprocating pump provides outstanding performance in demanding conditions. Ideal for high-pressure/high-volume applications, the pump has been designed for maximum performance in minimal space.
This pump features specially-designed liquid ends that assure head integrity, seals that minimize unwanted leaking, and a lubrication system that reduces wear and extends equipment life.
Available in several models to handle a wide range of pressure and flow rate combinations, the Poweroyal pump is ready to take on the toughest conditions.
The Poweroyal positive-displacement reciprocating pump provides outstanding performance in demanding conditions. Ideal for high-pressure/high-volume applications, the pump has been designed for maximum performance in minimal space.
This pump features specially-designed liquid ends that assure head integrity, seals that minimize unwanted leaking, and a lubrication system that reduces wear and extends equipment life.
Available in several models to handle a wide range of pressure and flow rate combinations, the Poweroyal pump is ready to take on the toughest conditions
Powered to constantly move liquid within a fixed volume, this API674-compliant pump can handle acids, bases, corrosives, viscous liquids and abrasive fluids.
- Designed for maximum performance in minimal space
- Specially designed liquid ends reduces friction and stress
- Self-tightening seal minimizes unwanted leaking
- Constructed of the highest quality of materials to minimize wear and tear
- The pump’s optimal efficiency means it consumes less electrical power
- Increased life through advanced technology and design