• A leap forward in chemical metering technology

Measurement and Testing

A leap forward in chemical metering technology

Jun 24 2024

Milton Roy has launched the new, ATEX II 2 G Ex h IIC T4/T3 Gb X certified, Primeroyal™ Q series (PQ) chemical metering pump. This state-of-the-art addition to the already exhaustive Primeroyal™ range promises to set a new level of performance in a plethora of applications. The PQ series offers a braod and modular API 675 range with eight distinct drive sizes and nine advanced liquid end technologies, thereby providing users with unsurpassed versatility. It can meet the highly demanding hydraulic performance needs for high flows and high discharge pressures.

The new devices take metering pump technology to a new level, providing a maximum flow rate of 8,657 l/h (2,199 gph) per dosing head and maximum discharge pressure of 1,035 bar (15,011 psi). This highly significant expansion of the Primeroyal™ range fulfils a wide spectrum of customer needs, delivering a robust and flexible solution that performs superbly in the harshest of industrial environments. Developed to withstand the task of continuous, 24/7 operation, the Q series is the embodiment of dependability and endurance, meeting the demands of continuous operation without compromising on performance or accuracy.

These metering pumps have been painstakingly engineered with three types of proven liquid end: packed plunger, PTFE, or metallic diaphragm, that have been the bedrock of reliability for over twenty years within the Primeroyal™ and Milroyal® series. The double diaphragm liquid end technology, combined with a highly advanced leak detection system, provides enhanced safety for handling all fluids including critical, toxic, harmful, and explosive process liquids. Despite its high-spec capabilities, the Q Series is easy to maintain and economical to operate.

The Primeroyal™ Q series, with its compact and lightweight design with a minimal footprint, provides compliance with API 675 standards for steady state accuracy (±1%), linearity and repeatability (±3%). The high-performance devices have a maximum flow rate of 8,657 l/h (2,199 gph) per dosing head, a maximum discharge pressure of 1,035 bar (15,011 psi) and a maximum suction pressure of 371 bar (5,380 psi) dedicated for liquified gases application. The Q Series is built around over two decades of field proven technology and features a leak-free design and large liquid end technology offering packed plunger, PTFE or metallic stainless-steel single/double diaphragm.

The pumps operate in ambient temperatures of -10° to + 50 °C (+14° to +122 °F) in standard, with an optional low temperature model for temperatures of  -40°C/-40°F. They offer manual and local stroke length adjustment for precise control of the flow rate and remote control of the capacity, through the 4-20mA analogue and feedback signals for modulation. In addition, the Q Series also features multiplexing capabilities, with a maximum of 6 heads and customised PQ solutions are available with many of options for high specifications.

As an essential, value-added element of your contract, the documentation, established by Milton Roy’s contractual documentation competence, guarantees users compliance with applicable standards. This crucial aspect of the service offers a continuous overview on conformity and collates all the documentation concerning purchasing including compliance certificates, minutes, drawings issued by the design office, and flexible data sheets facilitating the integration of possible amendments to the project drawings and documentation.

The Primeroyal™ Q pumps are specifically designed to cater to the oil and gas sector for high-pressure methanol injection at the wellhead and the injection of corrosion inhibitors and chemicals for refined product treatment. The chemical and petrochemical processing sector will also benefit thanks to its precise dosing of catalysts in polymerisation processes and the power generation industry for high-pressure boiler feed water treatment and more.

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