MacRoy®

Series of Metering Pumps

MacRoy®

Series of Metering Pumps

MacRoy Features and Specifications» Flow Rates up to 312 GPH (1180 Liters/hr)

» Mechanically Actuated Diaphragm liquid end eliminates flow restrictions

» Durable, metallic housing designed to withstand tough environments

» High efficiency motors minimize heat buildup

» 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

» Smooth running, low friction bronze gears

» The PTFE, high performance, diaphragm design increases diaphragm life by eliminating the stresses inherent in most designs

» Reliable low flow performance is a result of high performance check valves with machined seats

» All gear components operate in an oil bath for long life

» Precision stroke adjustment can be operated while the pump is running or stopped

» Steady State Accuracy – ± 1% of full capacity over the 10 to 1 turndown ratio

» Liquid Temperature Range – 14° to 122° F (-14° to 50° C)

» Coating – 2 part epoxy

» Average Weight with motor – Frame D: 45 lbs (20 kgs) Frame G: 105 lbs (48 kgs)

The MacRoy® Series

of metering pumps offer

traditional Milton Roy

reliability with outstanding

value for applications up

to 175 psi (12 Bar).

Milton Roy 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.

MacRoy® Series

Illustrated to the right is a D4 with a PVC liquid end, featuring NPT connections.

General DimensionsApproximate for envelope estimations. Certified prints are available.Dimensions are showing for both D and G frame in inches.

Connection Port Size for the Following materials

FrameLiquidEndSize

Black PP

PVC PVDF 316 ssPolymer Slurry HSO4

Applications

D

NPT Connection SizesConnection Port Size for the Following materials

FrameLiquidEndSize

Black PP, PVC, PVDF & Acrylic 316 SS

HSO4

Applications

24

7 & 85

6 & 7

1/4” Male

1/2” Female

1” Female

1/4” Male1/2” Male

1” Male

1/4” Male

1” Female 1” Male

1/2” Male1/4” Male

PVC

PVDFAcrylicD

D

G

D

G

D

PVDFPVC

PVDF PVDF

Acrylic

G

G

Aflas

Viton PVC

Alloy C22PTFE

Materials of Construction

FrameLiquidEndSize

Black PP

PVC PVDFPolymer Slurry HSO4

ApplicationsFrameLiquidEndSize

Head CheckValve Seals Seats Balls Diaphragm

BlackPolyproylene

PVC

316 SS

PVDF

Polymer ApplicationsSlurry Applications

H2SO4 Applications

D

G

D & GD & GD & G

Material

Black PPPVDF

Aflas

PVC

Ceramic

PTFE

Viton

Aflas

Viton

Aflas

PTFE

Viton

Aflas

PTFE

Viton

PTFE

PP

PVC

316 SS

PVC

PVC316 SSPVDF

316 SS

Alloy C22PTFE

Alloy C22PTFE

PVC

PVDF

Alloy C22PTFE

316 SS 316 SS

316 SS316 SS

CA 20316 SSPTFE

CA 20

24

7 & 85

6 & 724

7 & 85

6 & 72 4

7 & 8All24

7 & 85

6 & 7AllAllAll24

7 & 85

6 & 7

G

MacRoy G with PVC liquid end and manual micrometer stroke adjustment.

Pump Selection by Capacity and PressureMaximum Ratings

GPH Liter/Hr GPH PSI Bar

0.18

0.35

0.48

0.7

3.0

6.6

10

14.4

13

25

34

50

31

57

87

127

0.7

1.3

1.8

2.6

11.4

25

38

45

99

95

129

189

117

216

329

481

0.15

0.29

0.40

0.58

2.5

5.5

6.9

12

10

21

28

42

26

47

72

106

0.6

1.1

1.5

2.2

9.5

21

26

45

39

79

106

159

98

178

273

401

Pump Selection

MacRoy Capacity @ 60 Hz

(1725 RPM)

Capacity @ 50 Hz

(1425 RPM) PressureFrame Liquid

EndGearCode

D

1

2

6

3

1

2

6

3

1

2

6

3

1

2

6

3

2

4

7

8

175

150

100

75

12

10

7

5

26

53

75

106

–

37

74

104

147

–

75

150

213

300

–

98.4

200.6

283.9

401.2

–

140.0

280.1

393.6

556.4

–

283.9

567.8

806.2

1135.5

–

22

44

62

88

110

31

62

87

122

154

62

125

177

250

312

82

167

237

334

416

117

233

328

464

583

237

473

672

946

1181

G

1

2

6

3

8

1

2

6

3

8

1

2

6

3

8

5

6

7

150

100

50

10

7

3.5

Liter/Hr

Ratin

gs b

ased

on

1 H

P (.7

5 kW

)Ra

tings

bas

ed o

n 1/

4 H

P (.2

5 kW

)

MacRoy D & G Product Code

Frame and Liquid End

Gear Ratio

Motor &/ or Mount

Motor &/or Mount8 = 1 ph 60 Hz 115/230 VAC

1725 RPM TEJ = 3 ph 60 Hz 230/460 VAC

1725 RPM TE9 = 1 ph 50 Hz 115/230 VAC

1450 RPM TEL = 3 ph 50 Hz 220/380 VAC

1450 RPM TEM = IEC 71, F130 V1 Flange

Mount Less MotorN = IEC 80, F165 V1 Flange

Mount Less Motor (G Frame only)

X = Nema 56C Mount Less Motor

Liquid End Material2 = PVDF4 = Black Polypropylene

(UV Stable)7 = 316 ss8 = PVCA = AcrylicP = Polymer ServiceL = Slurry ApplicationsN = H2SO4 Applications

ConnectionsP = NPTT = TubingB = Bleed Valve NPTC = Bleed Valve Tubing

Capacity ControlM4 = ManualE1 = 4-20, Nema 4, 115VE2 = 4-20, Nema 4, 230VEA = 4-20, Ex Prf, 115VEB = 4-20, Ex Prf, 230V

Double DiaphragmN = NoneD = Double Diaphragm3 = Double Diaphragm w/

Gauge4 = Double Diaphragm

w/Nema 4 Rupture Detection

7 = Double Diaphragm w/Nema 7 Rupture Detection

Base CodeN = None1 = Simplex Optional Base

Stroke CountingN = None1 = Stroke Counting

(20 to 250 VAC/DC)

Frame and Liquid EndD Frame

D2D4D7D8

G FrameG5G6G7

Gear Ratio Code1 = 43 SPM2 = 86 SPM6 = 120 SPM3 = 173 SPM8 = 180 SPM @

1450 RPM

Liquid End

Material

Connections Capacity Control

BaseDouble Diaphragm

Stroke Counting

The photograph to the right is a D4 with a PVC liquid end, featuring NPT style check valves.

Milton Roy Company201 Ivyland Road » Ivyland, PA 18974-0577 » ph: 215.441.0800 » 800-693-4295 » fax: 214.441.8620 » www.miltonroy.com » email: info@miltonroy.com

PD 3212 4/11

AccessoriesSafety Valves

Protect pump and piping

from overpressure.

Back Pressure Valves

Provide smooth, artificial

pressure in pump discharge

line for atmospheric or low

pressure systems to ensure

pumping accuracy.

Pulsation Dampeners

Minimize pressure and flow

surges in the pump discharge.

When applied to pump inlet,

more favorable NPSH

conditions result.

Calibration Columns

Allow periodic verification of

pump performance during

routine checks or after

system maintenance.

MacRoy, Dependable and Versatile

The MacRoy™ series of pumps has

proven its exceptional value over years

of solid performance in a wide range

of applications and industries. Water

treatment chemicals, process additives,

acids, out-gassing fluids, slurries, and many

more applications are all handled with

ease by this robust metering pump

design. Your local representative can

assist you in applying the MacRoy™

metering pump to your process.