Universitario

MILROYAL B PUMPS
MILROYAL B SIMPLEX WITH HPD LIQUID END
(shown with optional flanges)

General Specifications
Drive
Polar Crank Design — all moving parts submerged in oil
Liquid Ends Available
High Performance Diaphragm (HPD)
Packed Plunger
Disc Diaphragm
Multiplexing
Up to 8 pumps driven by one motor. (Limited to total of 10 HP.) Consult Applications
Engineering concerningcapabilities for specific application.
Maximum Performance Ratings (per head)
500 gph (1893 l/h) @ 100 psig (7 bar) to
3.4 gph (13 l/h) @ 10,000 psig (1450 bar)
Capacity Control
Manual Micrometer (std)
Electronic, Pneumatic, or Variable Speed (opt)
Accuracy
±1.0% over 10:1 turndown ratio
Weight (simplex)
Approximate shipping weight is 250–600 lbs. (113–272 kg), depending on liquid end selected.MILROYAL B TRIPLEX

MILROYAL B PUMPS
HIGH PERFORMANCE DIAPHRAGM (HPD) lIQUID END DIMENSIONS*

Material

Plunger
Diameter
in. mm

A*
mm

in.

C

D

mm

in.

mm

7/16" 11 4 25/32" 121 4 25/32" 121

4"

102 1/2"

9/16" 14 4 25/32" 121 4 25/32" 121

4"

102 1/2"

5/8"

4"

102 1/2"

1"

in.

B*

16 4 25/32" 121 4 25/32" 121

in.

156 1/2"11/4" 32 5 7/32" 133 5 7/32" 133 6 1/8"

156 1/2"

11/2" 38 7 1/16" 179 7 1/16" 179 8 1/4"

210

1"

51 7 9/16" 192 7 9/16" 192 8 1/4"

210

1"

21/2" 64 7 9/16" 192 7 9/16" 192 8 1/4"

210

1"

31/2" 89 10 1/8" 257 10 1/8" 257

Metal

25 4 13/16" 122 4 13/16" 122 6 1/8"

13"

330 11/2"

13"

330 11/2"

2"

4"

102 10 1/8" 257 10 1/8" 257

1"

25

6 1/2"165

6 1/2" 165 6 15/16" 176 1/2"

11/4" 32

6 1/2"

165

6 1/2" 165 6 15/16" 176 1/2"
222

1"

51 9 9/16" 243 9 9/16" 243 8 3/4"

222

1"

21/2" 64 9 9/16" 243 9 9/16" 243 8 3/4"

Plastic

11/2" 38 9 9/16" 243 9 9/16" 243 8 3/4"

222

1"

2"

31/2" 89à
4"

102

16"‡

406‡

13"

330 13 1/4"‡ 337‡ 11/2"

16"‡

406‡

13"

330 13 1/4"‡ 337‡ 11/2"Notes:
* Dimensions shown are for single diaphragm liquid ends. Contact factory for double diaphragm dimensions.
† A & B dimensions are based on standard ball check configuration: Metallic = single ball checks, Plastic = double ball checks. Consult
factory for dimensions on optional configurations.
‡ Suction and discharge connections are horizontal in metal and vertical in plastic excepton plastic 3 1/2" (89 mm) plunger, where suction i
horizontal, discharge is vertical and dimension "C" for discharge is 10 13/16" (275 mm).

MAXIMUM ALLOWABLE SUCTION PRESSURE RANGE - HPD

Plunger Diameter Standard Mid Range High Range
in.

mm

PSIG Bar PSIG Bar PSIG Bar

7/16"

11

660

46

1130

77

1450

98

9/16"

14

460

31

770

53

985

68

5/8"16

360

25

590

40

750

51

1"

25

100

7

—

—

—

—

11/4"

32

100

7

—

—

—

—

11/2"

38

85

6

100

7

—

—

2"

51

60

4

85

6

100

7

2 1/2"

64

45

3

60

4

70

5

3 1/2"

89

20

1.3

35

2

40

3

4"

100

15

1

25

1.5

30

2

MILROYAL B PUMPSPACKED PLUNGER LIQUID END DIMENSIONS
Pressure

Plunger Diameter

E

F

G

in.

mm

in.

mm

in.

5/16"

8

3"

76

3"

76 4 1/4" 108 1/2"

7/16"

11

3"

76

3"

76 4 1/4" 108 1/2"

5/8"

16

3"

76

3"

76 4 1/4" 108 1/2"

7/8"

22

3 1/2"

1 1/8"

28

3 9/16" 90 3 9/16" 90

4"

102

1 1/2"

38

4 7/16" 113 4 7/16" 1134"

102 1 1/4"

1 3/4"

44

4 7/16" 113 4 7/16" 113

4"

102 1 1/4"

2 1/2"

64

7 3/8" 187 7 3/8" 187 7 1/2" 184 2 1/2"

5000+ PSIG

5/16"

8

3 5/16" 84 3 5/16" 84 4 1/2" 114 3/4"

(345+ BAR)

7/16"

11

3 5/16" 84 3 5/16" 84 4 1/2" 114 3/4"

0-4999 PSIG
(0-344 BAR)

89 3 1/2"

MAXIMUM ALLOWANCE SUCTION PRESSURE RANGE - PACKED PLUNGER
Plunger...