Metering Pumps
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 in Metering Pumps - Accurate Dispensing Solutions for Precision (2)
Solenoid Driven Metering Pumps
Solenoid driven metering pumps are precision devices used for accurate and controlled dispensing of fluids. These pumps utilize a solenoid-driven piston or diaphragm to deliver precise volumes of liquid, making them ideal for applications that require precise dosing, such as water treatment, chemical processing, and laboratory environments.
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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This PrimeRoyal® R liquid end (21-51) covers 50.8 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.
$41,953.18
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (21-57) covers 57.2 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.
$41,953.18
Available for Purchase
Subject to factory lead times
The 21-63 is a PrimeRoyal® R packed-plunger liquid end for 63.5 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.
$41,953.18
Available for Purchase
Subject to factory lead times
The 23-19 is a PrimeRoyal® L PTFE GSD-type diaphragm liquid end with a 19 mm plunger in PVC. The PTFE diaphragm offers broader chemical compatibility than NBR-based options, making the PrimeRoyal L the preferred choice when process fluids are incompatible with elastomers. Full process containment is maintained through the diaphragm, keeping the drive oil clean and eliminating packing leakage. Connection options include standard threaded (VM/VF) as well as ANSI flanged from Class 150 through Class 1500 in stainless or Alloy 20. Gear set, motor, capacity control, and oil selections are priced separately on the PrimeRoyal L pricing page.
$16,578.99
Available for Purchase
Subject to factory lead times
The 23-20 is a PrimeRoyal® Q packed-plunger liquid end for 20 mm plunger diameter service. The packed-plunger design excels at high-pressure chemical injection in oil & gas, refinery, and specialty chemical applications where diaphragm designs may be limited by pressure or temperature. P4 head design accommodates plunger diameters from 20 to 32 mm. Check valve options include single-ball, double-ball, flat valve, hard ball-and-seat (LD), slurry, H₂SO₄, viscous, and anti-siphon configurations. Wetted O-ring material is selected between PTFE, Viton, or Nitrile. Connection options and capacity control add-ons are priced separately.
$78,307.67
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (23-22) covers 22 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.
$120,557.06
Available for Purchase
Subject to factory lead times
The 23-23 is a PrimeRoyal® Q packed-plunger liquid end for 23 mm plunger diameter service. The packed-plunger design excels at high-pressure chemical injection in oil & gas, refinery, and specialty chemical applications where diaphragm designs may be limited by pressure or temperature. P4 head design accommodates plunger diameters from 20 to 32 mm. Check valve options include single-ball, double-ball, flat valve, hard ball-and-seat (LD), slurry, H₂SO₄, viscous, and anti-siphon configurations. Wetted O-ring material is selected between PTFE, Viton, or Nitrile. Connection options and capacity control add-ons are priced separately.
$78,966.04
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (23-25) covers 25 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.
$79,622.38
Available for Purchase
Subject to factory lead times
The 23-28 is a PrimeRoyal® Q packed-plunger liquid end for 28 mm plunger diameter service. The packed-plunger design excels at high-pressure chemical injection in oil & gas, refinery, and specialty chemical applications where diaphragm designs may be limited by pressure or temperature. P4 head design accommodates plunger diameters from 20 to 32 mm. Check valve options include single-ball, double-ball, flat valve, hard ball-and-seat (LD), slurry, H₂SO₄, viscous, and anti-siphon configurations. Wetted O-ring material is selected between PTFE, Viton, or Nitrile. Connection options and capacity control add-ons are priced separately.
$77,069.51$79,138.00
Available for Purchase
Subject to factory lead times
Manufactured in France, the 23-29 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 29 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.
$94,104.53
Available for Purchase
Subject to factory lead times
Manufactured in France, the 23-30 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 30 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.
$201,627.05
Available for Purchase
Subject to factory lead times
The 23-31 is a PrimeRoyal® R packed-plunger liquid end for 31 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.
$201,627.05
Available for Purchase
Subject to factory lead times
The 23-32 is a PrimeRoyal® R packed-plunger liquid end for 32 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.
$80,939.12
Available for Purchase
Subject to factory lead times
The 23-33 is a PrimeRoyal® R packed-plunger liquid end for 33 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.
$201,627.05
Available for Purchase
Subject to factory lead times
Manufactured in France, the 23-35 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 35 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.
$94,104.53
Available for Purchase
Subject to factory lead times
The 23-37 is a PrimeRoyal® R packed-plunger liquid end for 37 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.
$94,104.53
Available for Purchase
Subject to factory lead times
The 23-38 is a PrimeRoyal® R packed-plunger liquid end for 38 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.
$201,627.05
Available for Purchase
Subject to factory lead times
Manufactured in France, the 23-42 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 42 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.
$201,627.05
Available for Purchase
Subject to factory lead times
Manufactured in France, the 23-47 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 47 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.
$201,627.05
Available for Purchase
Subject to factory lead times
The 31-102 is a PrimeRoyal® R packed-plunger liquid end for 101.6 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.
$22,851.28
Available for Purchase
Subject to factory lead times
Manufactured in France, the 31-127 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 127 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.
$32,911.48
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (31-152) covers 152.4 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.
$35,827.99
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (31-178) covers 177.8 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.
$63,940.15
Available for Purchase
Subject to factory lead times
This PrimeRoyal® K liquid end (31-32) is configured with a 32 mm plunger in 316L stainless steel. The PTFE/NBR GSD diaphragm provides full process isolation while handling the pressure cycles of high-duty metering service. Check valve styles — single ball, double ball, hard 440C, slurry, and viscous-liquid spring-loaded — are selected at order time to match fluid characteristics. Suction and discharge connections are available in threaded standard, ANSI Class 150, 300, 600, or 1500 flanges in 316L SS or Alloy 20. Base price covers the liquid end body; gear set, motor mount, capacity control, and oil options are priced separately.
$12,852.95
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (21-51) covers 50.8 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.
$41,953.18
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (21-57) covers 57.2 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.
$41,953.18
Available for Purchase
Subject to factory lead times
The 21-63 is a PrimeRoyal® R packed-plunger liquid end for 63.5 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.
$41,953.18
Available for Purchase
Subject to factory lead times
The 23-19 is a PrimeRoyal® L PTFE GSD-type diaphragm liquid end with a 19 mm plunger in PVC. The PTFE diaphragm offers broader chemical compatibility than NBR-based options, making the PrimeRoyal L the preferred choice when process fluids are incompatible with elastomers. Full process containment is maintained through the diaphragm, keeping the drive oil clean and eliminating packing leakage. Connection options include standard threaded (VM/VF) as well as ANSI flanged from Class 150 through Class 1500 in stainless or Alloy 20. Gear set, motor, capacity control, and oil selections are priced separately on the PrimeRoyal L pricing page.
$16,578.99
Available for Purchase
Subject to factory lead times
The 23-20 is a PrimeRoyal® Q packed-plunger liquid end for 20 mm plunger diameter service. The packed-plunger design excels at high-pressure chemical injection in oil & gas, refinery, and specialty chemical applications where diaphragm designs may be limited by pressure or temperature. P4 head design accommodates plunger diameters from 20 to 32 mm. Check valve options include single-ball, double-ball, flat valve, hard ball-and-seat (LD), slurry, H₂SO₄, viscous, and anti-siphon configurations. Wetted O-ring material is selected between PTFE, Viton, or Nitrile. Connection options and capacity control add-ons are priced separately.
$78,307.67
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (23-22) covers 22 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.
$120,557.06
Available for Purchase
Subject to factory lead times
The 23-23 is a PrimeRoyal® Q packed-plunger liquid end for 23 mm plunger diameter service. The packed-plunger design excels at high-pressure chemical injection in oil & gas, refinery, and specialty chemical applications where diaphragm designs may be limited by pressure or temperature. P4 head design accommodates plunger diameters from 20 to 32 mm. Check valve options include single-ball, double-ball, flat valve, hard ball-and-seat (LD), slurry, H₂SO₄, viscous, and anti-siphon configurations. Wetted O-ring material is selected between PTFE, Viton, or Nitrile. Connection options and capacity control add-ons are priced separately.
$78,966.04
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (23-25) covers 25 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.
$79,622.38
Available for Purchase
Subject to factory lead times
The 23-28 is a PrimeRoyal® Q packed-plunger liquid end for 28 mm plunger diameter service. The packed-plunger design excels at high-pressure chemical injection in oil & gas, refinery, and specialty chemical applications where diaphragm designs may be limited by pressure or temperature. P4 head design accommodates plunger diameters from 20 to 32 mm. Check valve options include single-ball, double-ball, flat valve, hard ball-and-seat (LD), slurry, H₂SO₄, viscous, and anti-siphon configurations. Wetted O-ring material is selected between PTFE, Viton, or Nitrile. Connection options and capacity control add-ons are priced separately.
$77,069.51$79,138.00
Available for Purchase
Subject to factory lead times
Manufactured in France, the 23-29 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 29 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.
$94,104.53
Available for Purchase
Subject to factory lead times
Manufactured in France, the 23-30 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 30 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.
$201,627.05
Available for Purchase
Subject to factory lead times
The 23-31 is a PrimeRoyal® R packed-plunger liquid end for 31 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.
$201,627.05
Available for Purchase
Subject to factory lead times
The 23-32 is a PrimeRoyal® R packed-plunger liquid end for 32 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.
$80,939.12
Available for Purchase
Subject to factory lead times
The 23-33 is a PrimeRoyal® R packed-plunger liquid end for 33 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.
$201,627.05
Available for Purchase
Subject to factory lead times
Manufactured in France, the 23-35 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 35 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.
$94,104.53
Available for Purchase
Subject to factory lead times
The 23-37 is a PrimeRoyal® R packed-plunger liquid end for 37 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.
$94,104.53
Available for Purchase
Subject to factory lead times
The 23-38 is a PrimeRoyal® R packed-plunger liquid end for 38 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.
$201,627.05
Available for Purchase
Subject to factory lead times
Manufactured in France, the 23-42 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 42 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.
$201,627.05
Available for Purchase
Subject to factory lead times
Manufactured in France, the 23-47 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 47 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.
$201,627.05
Available for Purchase
Subject to factory lead times
The 31-102 is a PrimeRoyal® R packed-plunger liquid end for 101.6 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.
$22,851.28
Available for Purchase
Subject to factory lead times
Manufactured in France, the 31-127 (PrimeRoyal® R) is a large-bore packed-plunger liquid end designed for 127 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.
$32,911.48
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (31-152) covers 152.4 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.
$35,827.99
Available for Purchase
Subject to factory lead times
This PrimeRoyal® R liquid end (31-178) covers 177.8 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.
$63,940.15
Available for Purchase
Subject to factory lead times
This PrimeRoyal® K liquid end (31-32) is configured with a 32 mm plunger in 316L stainless steel. The PTFE/NBR GSD diaphragm provides full process isolation while handling the pressure cycles of high-duty metering service. Check valve styles — single ball, double ball, hard 440C, slurry, and viscous-liquid spring-loaded — are selected at order time to match fluid characteristics. Suction and discharge connections are available in threaded standard, ANSI Class 150, 300, 600, or 1500 flanges in 316L SS or Alloy 20. Base price covers the liquid end body; gear set, motor mount, capacity control, and oil options are priced separately.
$12,852.95
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.