Metering Pumps - Milton Roy
Metering pumps are positive displacement pumps designed to move a precise volume of liquid per revolution. They are often used in industrial and commercial applications to pump chemicals, lubricants, and other flui...
Categories from Milton Roy (1)
Motor Driven Metering Pumps
Motor-driven metering pumps deliver precise, reliable chemical dosing for demanding industrial applications, combining high flow capacity with consistent accuracy. Ideal for water treatment, chemical processing, and manufacturing, these pumps offer adjustable stroke length and motor speed to handle a wide range of fluid viscosities and pressures. Their robust construction ensures long-term durability, while optional features like integrated controllers and safety valves enhance process control and system protection.
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Manufactured in France, the 51-55 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 55 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$129,615.00
Available for Purchase
Subject to factory lead times
Manufactured in France, the 51-60 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 60 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$134,238.82
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (51-63) covers 63 mm plunger diameter in the high-pressure packed-plunger configuration. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$132,855.12
Available for Purchase
Subject to factory lead times
Manufactured in France, the 51-65 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 65 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$137,479.95
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (51-70) covers 70 mm plunger diameter in the high-pressure packed-plunger configuration. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$136,095.24
Available for Purchase
Subject to factory lead times
Manufactured in France, the 51-75 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 75 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$139,336.38
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (51-80) covers 80 mm plunger diameter in the high-pressure packed-plunger configuration. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$145,816.62
Available for Purchase
Subject to factory lead times
Manufactured in France, the 51-85 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 85 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$150,873.60
Available for Purchase
Subject to factory lead times
Manufactured in France, the 51-90 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 90 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$149,489.91
Available for Purchase
Subject to factory lead times
The 51-95 is a PrimeRoyal® R packed-plunger liquid end for 95 mm plunger service, manufactured in France. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$154,544.86
Available for Purchase
Subject to factory lead times
The 701-00 is a safety valve accessory for Milton Roy metering pump installations. Provides overpressure protection on metering pump discharge piping. These valves protect against blocked injection lines, sudden downstream pressure spikes, and other conditions that could damage the pump head or diaphragm. Select the correct pressure rating and body material to match the process service and discharge pressure range.
$884.59
Available for Purchase
Subject to factory lead times
The 701-00-300 is a safety valve accessory for Milton Roy metering pump installations. Provides overpressure protection on metering pump discharge piping. These valves protect against blocked injection lines, sudden downstream pressure spikes, and other conditions that could damage the pump head or diaphragm. Select the correct pressure rating and body material to match the process service and discharge pressure range.
$955.60
Available for Purchase
Subject to factory lead times
The 701-00-3000 is a safety valve accessory for Milton Roy metering pump installations. Provides overpressure protection on metering pump discharge piping. These valves protect against blocked injection lines, sudden downstream pressure spikes, and other conditions that could damage the pump head or diaphragm. Select the correct pressure rating and body material to match the process service and discharge pressure range.
$895.75
Available for Purchase
Subject to factory lead times
The 701-00-G36 is a safety valve accessory for Milton Roy metering pump installations. Provides overpressure protection on metering pump discharge piping. These valves protect against blocked injection lines, sudden downstream pressure spikes, and other conditions that could damage the pump head or diaphragm. Select the correct pressure rating and body material to match the process service and discharge pressure range.
$905.89
Available for Purchase
Subject to factory lead times
The 800-701 is a safety valve accessory for Milton Roy metering pump installations. Provides overpressure protection on metering pump discharge piping. These valves protect against blocked injection lines, sudden downstream pressure spikes, and other conditions that could damage the pump head or diaphragm. Select the correct pressure rating and body material to match the process service and discharge pressure range.
$1,407.03
Available for Purchase
Subject to factory lead times
The A1411 is a field-replaceable PROTEUS™ liquid end engineered for general chemical metering service. Wetted components are Polypropylene (PP) head body, 316L ball. Turndown ratio is 1000:1. The mechanically actuated PTFE diaphragm provides reliable containment across a wide range of process chemicals.
$1,249.20
Available for Purchase
Subject to factory lead times
This PROTEUS™ Frame B drive (ERB12) features manually adjustable capacity control — no external signal required, straightforward to operate in standalone installations. It delivers up to 5.6 GPH against pressures up to 175 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$3,668.65
Available for Purchase
Subject to factory lead times
The ERB13 is a PROTEUS™ Frame B metering pump drive with manually adjustable capacity control — no external signal required, straightforward to operate in standalone installations. It delivers up to 14.0 GPH against pressures up to 75 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$3,893.48
Available for Purchase
Subject to factory lead times
This PROTEUS™ Frame B drive (ERB14) features manually adjustable capacity control — no external signal required, straightforward to operate in standalone installations. It delivers up to 18.0 GPH against pressures up to 50 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$3,960.38
Available for Purchase
Subject to factory lead times
The ERB22 is a PROTEUS™ Frame B metering pump drive with enhanced electronic control with a full-color graphical display, multiple operation modes (manual, analog 4–20 mA, pulse, batch, and timer), and programmable I/O contacts. It delivers up to 5.6 GPH against pressures up to 175 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$4,254.31
Available for Purchase
Subject to factory lead times
The ERB23 is a PROTEUS™ Frame B metering pump drive with enhanced electronic control with a full-color graphical display, multiple operation modes (manual, analog 4–20 mA, pulse, batch, and timer), and programmable I/O contacts. It delivers up to 14.0 GPH against pressures up to 75 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$4,479.15
Available for Purchase
Subject to factory lead times
The ERB24 is a PROTEUS™ Frame B metering pump drive with enhanced electronic control with a full-color graphical display, multiple operation modes (manual, analog 4–20 mA, pulse, batch, and timer), and programmable I/O contacts. It delivers up to 18.0 GPH against pressures up to 50 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$4,546.05
Available for Purchase
Subject to factory lead times
This PROTEUS™ Frame B drive (ERB32) features enhanced electronic control with ProfiBus DP communications for direct integration into plant-wide process control networks. Supports analog input pacing, batch, and timer modes. It delivers up to 5.6 GPH against pressures up to 175 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$5,117.46
Available for Purchase
Subject to factory lead times
Built around Milton Roy's stepper-motor platform, the ERB33 (Frame B) offers enhanced electronic control with ProfiBus DP communications for direct integration into plant-wide process control networks. Supports analog input pacing, batch, and timer modes. It delivers up to 14.0 GPH against pressures up to 75 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$5,342.29
Available for Purchase
Subject to factory lead times
Manufactured in France, the 51-55 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 55 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$129,615.00
Available for Purchase
Subject to factory lead times
Manufactured in France, the 51-60 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 60 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$134,238.82
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (51-63) covers 63 mm plunger diameter in the high-pressure packed-plunger configuration. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$132,855.12
Available for Purchase
Subject to factory lead times
Manufactured in France, the 51-65 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 65 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$137,479.95
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (51-70) covers 70 mm plunger diameter in the high-pressure packed-plunger configuration. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$136,095.24
Available for Purchase
Subject to factory lead times
Manufactured in France, the 51-75 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 75 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$139,336.38
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (51-80) covers 80 mm plunger diameter in the high-pressure packed-plunger configuration. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$145,816.62
Available for Purchase
Subject to factory lead times
Manufactured in France, the 51-85 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 85 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$150,873.60
Available for Purchase
Subject to factory lead times
Manufactured in France, the 51-90 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 90 mm plunger diameter. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$149,489.91
Available for Purchase
Subject to factory lead times
The 51-95 is a PrimeRoyal® R packed-plunger liquid end for 95 mm plunger service, manufactured in France. The PrimeRoyal R excels in oil & gas injection, pipeline dosing, and petrochemical service where very high pressures and large flow volumes are required. Metallic construction throughout ensures long service life in aggressive process environments. Check valve, connection type, capacity control, and motor options are selected separately to complete the configuration for the specific application. RPM maintenance kits are available to cover all scheduled-interval service requirements.
$154,544.86
Available for Purchase
Subject to factory lead times
The 701-00 is a safety valve accessory for Milton Roy metering pump installations. Provides overpressure protection on metering pump discharge piping. These valves protect against blocked injection lines, sudden downstream pressure spikes, and other conditions that could damage the pump head or diaphragm. Select the correct pressure rating and body material to match the process service and discharge pressure range.
$884.59
Available for Purchase
Subject to factory lead times
The 701-00-300 is a safety valve accessory for Milton Roy metering pump installations. Provides overpressure protection on metering pump discharge piping. These valves protect against blocked injection lines, sudden downstream pressure spikes, and other conditions that could damage the pump head or diaphragm. Select the correct pressure rating and body material to match the process service and discharge pressure range.
$955.60
Available for Purchase
Subject to factory lead times
The 701-00-3000 is a safety valve accessory for Milton Roy metering pump installations. Provides overpressure protection on metering pump discharge piping. These valves protect against blocked injection lines, sudden downstream pressure spikes, and other conditions that could damage the pump head or diaphragm. Select the correct pressure rating and body material to match the process service and discharge pressure range.
$895.75
Available for Purchase
Subject to factory lead times
The 701-00-G36 is a safety valve accessory for Milton Roy metering pump installations. Provides overpressure protection on metering pump discharge piping. These valves protect against blocked injection lines, sudden downstream pressure spikes, and other conditions that could damage the pump head or diaphragm. Select the correct pressure rating and body material to match the process service and discharge pressure range.
$905.89
Available for Purchase
Subject to factory lead times
The 800-701 is a safety valve accessory for Milton Roy metering pump installations. Provides overpressure protection on metering pump discharge piping. These valves protect against blocked injection lines, sudden downstream pressure spikes, and other conditions that could damage the pump head or diaphragm. Select the correct pressure rating and body material to match the process service and discharge pressure range.
$1,407.03
Available for Purchase
Subject to factory lead times
The A1411 is a field-replaceable PROTEUS™ liquid end engineered for general chemical metering service. Wetted components are Polypropylene (PP) head body, 316L ball. Turndown ratio is 1000:1. The mechanically actuated PTFE diaphragm provides reliable containment across a wide range of process chemicals.
$1,249.20
Available for Purchase
Subject to factory lead times
This PROTEUS™ Frame B drive (ERB12) features manually adjustable capacity control — no external signal required, straightforward to operate in standalone installations. It delivers up to 5.6 GPH against pressures up to 175 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$3,668.65
Available for Purchase
Subject to factory lead times
The ERB13 is a PROTEUS™ Frame B metering pump drive with manually adjustable capacity control — no external signal required, straightforward to operate in standalone installations. It delivers up to 14.0 GPH against pressures up to 75 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$3,893.48
Available for Purchase
Subject to factory lead times
This PROTEUS™ Frame B drive (ERB14) features manually adjustable capacity control — no external signal required, straightforward to operate in standalone installations. It delivers up to 18.0 GPH against pressures up to 50 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$3,960.38
Available for Purchase
Subject to factory lead times
The ERB22 is a PROTEUS™ Frame B metering pump drive with enhanced electronic control with a full-color graphical display, multiple operation modes (manual, analog 4–20 mA, pulse, batch, and timer), and programmable I/O contacts. It delivers up to 5.6 GPH against pressures up to 175 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$4,254.31
Available for Purchase
Subject to factory lead times
The ERB23 is a PROTEUS™ Frame B metering pump drive with enhanced electronic control with a full-color graphical display, multiple operation modes (manual, analog 4–20 mA, pulse, batch, and timer), and programmable I/O contacts. It delivers up to 14.0 GPH against pressures up to 75 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$4,479.15
Available for Purchase
Subject to factory lead times
The ERB24 is a PROTEUS™ Frame B metering pump drive with enhanced electronic control with a full-color graphical display, multiple operation modes (manual, analog 4–20 mA, pulse, batch, and timer), and programmable I/O contacts. It delivers up to 18.0 GPH against pressures up to 50 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$4,546.05
Available for Purchase
Subject to factory lead times
This PROTEUS™ Frame B drive (ERB32) features enhanced electronic control with ProfiBus DP communications for direct integration into plant-wide process control networks. Supports analog input pacing, batch, and timer modes. It delivers up to 5.6 GPH against pressures up to 175 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$5,117.46
Available for Purchase
Subject to factory lead times
Built around Milton Roy's stepper-motor platform, the ERB33 (Frame B) offers enhanced electronic control with ProfiBus DP communications for direct integration into plant-wide process control networks. Supports analog input pacing, batch, and timer modes. It delivers up to 14.0 GPH against pressures up to 75 psi, with a 1000:1 turndown ratio and ±1% steady-state accuracy. Compatible with Size 4 and Size 6 field-replaceable liquid ends.
$5,342.29
Available for Purchase
Subject to factory lead times
FAQS
- A metering pump is a dosing pump designed to deliver precise, repeatable amounts of fluid. It works by controlling stroke length, stroke speed, or motor speed to achieve accurate flow rates, even under changing pressure conditions.
- Common types include diaphragm metering pumps, piston metering pumps, peristaltic dosing pumps, solenoid driven pumps, and motor driven pumps. Each offers different benefits for pressure, chemical compatibility, and turndown ratio.
- Metering pumps are used in water treatment, chemical injection, cooling towers, boilers, food and beverage processing, pharmaceuticals, agriculture, and any application requiring precise dosing of chemicals or additives.
- To size a metering pump, determine required flow rate, discharge pressure, chemical type, temperature, viscosity, and desired turndown. It’s also essential to verify compatibility with seals, diaphragms, and wetted materials.
- Metering pumps can handle a wide range of chemicals including acids, caustics, polymers, disinfectants, coagulants, corrosion inhibitors, and food grade ingredients. Proper material selection ensures safe and reliable operation.