Positive Displacement Chemical Metering Pumps

Electronic Metering Pump, LMIROYTRONIC® Series A Chemical Metering Pump

ROYTRONIC® Series A Chemical Metering Pumps are positive displacement, Liquifram™ pumps with an NEMA 4X/IP-65 enclosure. Relevant model codes are NSF, UL/CUL or CE certified and offer control options and improved electro-magnetics to meet all flow / pressure ratings. Designed for Commercial applications, the pumps are available for applications up to 250 psi with capacities between .001 and 2.0 GPH. Dual manual control options with pulse input or 4-20 mA input are available. Standard FastPrime™ Liquid Ends are equipped with a valve that allows for opening the head to atmospheric pressure to assist in pump priming. Standard half-inch NPT connections allow for ease of configuration. Ferrule designed fittings offer secure, leak-proof tubing connections.


  • Durable and lockable clear cover

  • NEMA 4X / IP65 Enclosure

  • Stroke indicator light

  • On/Off push button

  • Industrial grade IP-68 external signal/equipment interface

  • Inputs for low level switch available on certain models

  • FastPrime Liquid End

  • 3 Year Warranty

  • UL, CUL, NSF 61, CE Certifications

  • Speed may be externally controlled

Control Codes:
1 Dual Manual Control (speed and stroke length)
7 Pulse Input / Dual Manual Control
8 Analog Input / Dual Manual Control

Output Codes with FastPrimeā„¢ Liquid End
Max Capacity:   Max Pressure:
1 0.25 GPH (1.0 l/h)   250 psi (17.2 Bar)
4 0.5 GPH (1.9 l/h) 250 psi (17.2 Bar)
5 1.0 GPH (3.8 l/h) 110 psi (7.6 Bar)
6 2.0 GPH (7.6 l/h) 50 psi (3.4 Bar)


  • Four Function Valve

  • AUTOPRIMEā„¢ liquid End

  • Low Level Float Switch

  • Digi-Pulse Flow Monitor

  • Repair & Preventive Maintenance Kits

  • Calibration Columns

Data Sheet

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About Us

Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


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Dataloggers, sensors, pumps, recorders, hand held instruments, flow instrumentation, level controls, valves, instrumentation, containers, tanks, transmitters, data loggers, digital indicators, mixers and agitators, pressure intrumentation, analyzers and controllers for a variety of industrial applications such as water quality, pH/ORP and more.

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Water Analyzers and Controllers, Wireless Products, Corrosion Monitoring Equipment, Cooling Tower and Boiler Controllers, a wide variety of Pumps, Valves, Dataloggers and Recorders, HVAC, Instrumentation, Skids and Systems, Containers and Tanks from world leading manufacturers are products you will find on this site.

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