1. General Introduction
Milton Roy MACROY series metering pump offer traditional Milton Roy reliability with outstanding value for applications up to 175 psi (12 Bar). It has combined its heavy-duty industrial drive technology with state of the art design and manufacturing processes in creating the MacRoy Series metering pump. This family of Mechanically Actuated Diaphragm metering pumps is designed for durability and cost effectiveness. It mainly come with typical features as below:
u Flow Rates up to 312 GPH (1180 Liters/hr).
u Mechanically Actuated Diaphragm liquid end eliminates flow restrictions.
u Durable, metallic housing designed to withstand tough environments.
u High efficiency motors minimize heat buildup.
u A robust, metallic, worm gear drive coupled with the industrial duty variable eccentric stroke adjustment mechanism yields a 10 to 1 turn down ratio with smooth velocity profiles as compared to the pulsating flows of solenoid pumps or lost motion designs.
u Smooth running, low friction bronze gears.
u The PTFE, high performance, diaphragm design increases diaphragm life by eliminating the stresses inherent in most designs.
u Reliable low flow performance is a result of high performance check valves with machined seats.
u All gear components operate in an oil bath for long life.
u Precision stroke adjustment can be operated while the pump is running or stopped.
u Steady State Accuracy–± 1% of full capacity over the 10 to 1 turndown ratio.
u Liquid Temperature Range–14° to 122° F (-14° to 50° C).
u Coating–2 part epoxy
2. Pump Selection by Capacity and Pressure
Pump Selection | Maximum Ratings | |||||||
MacRoy | Capacity @ 60Hz 1725RPM | Capacity @ 50Hz 1425RPM | Pressure | |||||
Frame | Liquid End | Gear Code | GPH | L/hr | GPH | L/hr | Psi | Bar |
D | 2 | 1 | 0.18 | 0.7 | 0.15 | 0.6 | 175 | 12 |
2 | 0.35 | 1.3 | 0.29 | 1.1 | ||||
6 | 0.48 | 1.8 | 0.40 | 1.5 | ||||
3 | 0.7 | 2.6 | 0.58 | 2.2 | ||||
4 | 1 | 3.0 | 11.4 | 2.5 | 9.5 | 150 | 10 | |
2 | 6.6 | 25 | 5.5 | 21 | ||||
6 | 10 | 38 | 6.9 | 26 | ||||
3 | 14.4 | 45 | 12 | 45 | ||||
7 | 1 | 13 | 99 | 10 | 39 | 100 | 7 | |
2 | 25 | 95 | 21 | 79 | ||||
6 | 34 | 129 | 28 | 106 | ||||
3 | 50 | 189 | 42 | 159 | ||||
8 | 1 | 31 | 117 | 26 | 98 | 75 | 5 | |
2 | 57 | 216 | 47 | 178 | ||||
6 | 87 | 329 | 72 | 273 | ||||
3 | 127 | 481 | 106 | 401 | ||||
G | 5 | 1 | 26 | 98.4 | 22 | 82 | 150 | 10 |
2 | 53 | 200.6 | 44 | 167 | ||||
6 | 75 | 283.9 | 62 | 237 | ||||
3 | 106 | 401.2 | 88 | 334 | ||||
8 | — | — | 110 | 416 | ||||
6 | 1 | 37 | 140.0 | 31 | 117 | 100 | 7 | |
2 | 74 | 280.1 | 62 | 233 | ||||
6 | 104 | 393.6 | 87 | 328 | ||||
3 | 147 | 556.4 | 122 | 464 | ||||
8 | — | — | 154 | 583 | ||||
7 | 1 | 75 | 283.9 | 62 | 237 | 50 | 3.5 | |
2 | 150 | 567.8 | 125 | 473 | ||||
6 | 213 | 806.2 | 177 | 672 | ||||
3 | 300 | 1135.5 | 250 | 946 | ||||
8 | — | — | 312 | 1181 | ||||
3. Selection table of MacRoy series metering pump
Frame and Liquid End | D2 | D frame Liquid end 2 | ||||||||
D4 | D frame Liquid end 4 | |||||||||
D7 | D frame Liquid end 7 | |||||||||
D8 | D frame Liquid end 8 | |||||||||
G5 | G frame Liquid end 5 | |||||||||
G6 | G frame Liquid end 6 | |||||||||
G7 | G frame Liquid end 7 | |||||||||
Gear Ratio | 1 | 43 SPM | ||||||||
2 | 86 SPM | |||||||||
6 | 120 SPM | |||||||||
3 | 173 SPM | |||||||||
8 | 180 SPM @1450RPM | |||||||||
Motor & Mount | 8 | 1 ph 60 Hz 115/230 VAC 1725 RPM TE | ||||||||
J | 3 ph 60 Hz 230/460 VAC 1725 RPM TE | |||||||||
9 | 1 ph 50 Hz 115/230 VAC 1450 RPM TE | |||||||||
L | 3 ph 50 Hz 220/380 VAC 1450 RPM TE | |||||||||
M | IEC 71, F130 V1 Flange Mount Less Motor | |||||||||
N | IEC 80, F165 V1 Flange Mount Less Motor (G Frame only) | |||||||||
X | Nema 56C Mount Less Motor | |||||||||
Liquid End Material | 2 | PVDF | ||||||||
4 | Black Polypropylene (UV Stable) | |||||||||
7 | 316 ss | |||||||||
8 | PVC | |||||||||
A | Acrylic | |||||||||
P | Polymer Service | |||||||||
L | Slurry Applications | |||||||||
N | H2SO4 Applications | |||||||||
Connections | P | NPT | ||||||||
T | Tubing | |||||||||
B | Bleed Valve NPT | |||||||||
C | Bleed Valve Tubing | |||||||||
Capacity Control | M4 | Manual | ||||||||
E1 | 4-20, Nema 4, 115V | |||||||||
E2 | 4-20, Nema 4, 230V | |||||||||
EA | 4-20, Ex Prf, 115V | |||||||||
EB | 4-20, Ex Prf, 230V | |||||||||
Double Diaphragm | N | None | ||||||||
D | Double Diaphragm | |||||||||
3 | Double Diaphragm with Gauge | |||||||||
4 | Double Diaphragm with Nema 4 Rupture Detection | |||||||||
7 | Double Diaphragm with Nema 7 Rupture Detection | |||||||||
Base Code | N | None | ||||||||
I | Simplex Optional Base | |||||||||
Stroke Counting | N | None | ||||||||
I | Stroke Counting(20 to 250 VAC/DC) |
4. Dimension of MacRoy series metering pump
