Reliability

• Self-compensating hydraulic system - no refill valves or vacuum breaker to adjust.
• Single guided ball check valves assure pumping accuracy at low flow rates.
• Precision plunger/bore fit eliminates packing and extends service life.
• Internal hydraulic relief valve protects the pump and discharge line from system over-pressure.
• No plunger packings to leak or require adjustment.

Durability

• Hydraulically actuated leak proof PTFE diaphragm acts as a separating membrane between hydraulic and process fluids - diaphragm is subjected to uniform gentle stresses for maximum life.
• All moving parts operate in an oil bath, greatly reducing friction wear and assuring long, efficient pump life.
• Industrial duty material and coatings.
• Plastic control knob with stainless steel collar for easy adjustment and corrosion resistance.

Compatibility & Flexibility

• Wetted parts are available in a variety of materials to suit the application.
• Flanged housing accepts standard 56C frame motor and acts as an oil seal to keep oil in the housing.
• Available in simplex or duplex configurations.
• High viscosity liquid ends are available.
• 3/4" FNPT inlet on suction check valve.
• Right angle check valves allow for easy installation and less stress on the suction and injection line fittings.
• Check valves can be removed for low cost maintenance.
• Compact design fits in tight areas.

Specifics

Liquid End Options:

• 3/16 Stainless Steel
• PVC
• Alloy 20

Accuracy:

• ± 1% steady state accuracy.
• 10:1 Turndown ratio.
• Capacity adjustable over full range whether or not pump is in operation.
• Manual micrometer capacity control standard.
• Simplex or duplex configuration standard with independent capacity control for each head.

Power Supply:

• 12 Volt
• Hydraulic
• Single phase
• Three phase

 

Options

Stealth Base:

• Polyethylene to resist corrosion from both chemicals and the elements.
• Stabilizes the pump to prevent overturning and holds pump off of the ground for clean and trouble-free operation.
• Handles allow for easy transportation of pumps.
• Base provides mounting location for electrical switch.

Electrical Switches:

• Provides easy on/off operation of pump.
• Electromagnetic short circuit sensing.
• Overload relay adjustment.
• Automatic restart after system shutdown.

Plumbing:

• Strainer, quick coupling, and fittings for cleaner flow, easy entry into the check valve, and relief of hose weight.
• Flush and drain assemblies for preventive maintenance.
• Calibration assemblies allow operator to check the accuracy of the pump.

 

Max. Capacity in GPH	*Series	No. of Liquid Ends	Motor Specifications	Min. GPH	Max. GPH
1.7	mRoyP	simplex	1/4 HP 56C TEFC	0.17	1.7
2.5	mRoyP	simplex	1/4 HP 56C TEFC	0.25	2.5
5.6	mRoyP	simplex	1/4 HP 56C TEFC	0.56	5.6
11.1	mRoyP	simplex	1/4 HP 56C TEFC	11.1	11.1
18	mRoyP	simplex	1/4 HP 56C TEFC	1.8	18
30	mRoyA	simplex	1/4 HP 56C TEFC	3.0	30
57	mRoyB	simplex	1/2 HP 56C TEFC	5.7	57
85	mRoyB	simplex	1/2 HP 56C TEFC	8.5	85
227	mRoyB	simplex	3/4 HP 56C TEFC	22.7	227
2.5 / 18	mRoyP	duplex	1/4 HP 56C TEFC	0.25 / 1.8	2.5 / 18
5.6 / 18	mRoyP	duplex	1/4 HP 56C TEFC	0.56 / 1.8	5.6 / 18
18 / 18	mRoyP	duplex	1/4 HP 56C TEFC	1.8 / 1.8	18 / 18
4 / 30	mRoyA	duplex	1/4 HP 56C TEFC	0.4 / 3.0	4 / 30
30 / 30	mRoyA	duplex	1/4 HP 56C TEFC	3.0 / 3.0	30 / 30
85 / 85	mRoyB	duplex	1/2 HP 56C TEFC	8.5 / 8.5	85 / 85
* Milton Roy "P" pumps are designed to handle more viscous fluids.