Motor Mounted Centrifugal Pumps - …

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Motor Mounted Centrifugal Pumps fPerformance Curves 0 0.0 8 30.3 16 60.6 24 90.8 32 121.1 (USgpm) ... Armstrong Holden Brooke Pullen Wenlock Way Manchester United ...
Series 4270

Motor Mounted Centrifugal Pumps FILE NO: DATE: SUPERSEDES: DATE:

42.10 May 13, 2009 42.10 Oct. 23, 2007

Series 4270

Features That Ensure Performance Excellence! f Volute

f Mechanical Seal

Radially-split volute can be left in the line while servicing the pump, eliminating needless disconnecting of pipes. Tapped openings are provided for venting, draining and gauge connections.

Self-lubricating, prevents liquid spillage. A carbon face rotating against a stationary ceramic seat provides positive sealing up to full design pressure (Type 21).

f Adaptor

f Impeller High strength engineered resin or bronze impeller reduces axial thrust to a minimum, ensuring smooth performance and long life.

Aluminum die cast, with integral support foot, delivering lightweight, durable construction.

f Shaft Motor shaft extends through to impeller, eliminating intermediate bearing bracket for close coupled design.

f Motor The motor is equipped with heavy-duty, permanently lubricated ball bearings adequately rated to accommodate impeller radial loads and residual hydraulic thrusts. Designed to operate at 3600 rpm.

f Back Pull-Out Design Eliminates the need to break piping connections when servicing the pump. The motor, with bracket and impeller attached, can be easily withdrawn from the volute after moving the volute capscrews.

fApplications f Cooling Towers

f HVAC

f General Purpose

fMaterials of Construction Volute Volute Cap Screws Impeller Insert Seat Mechanical Bellows Seal L-Cup (Type 21) Retainer Spring Motor/Bracket Faceplate

Bronze Fitted Pump Cast Iron

fOptional Equipment All Bronze Pump Bronze

Steel PEI Resin or Bronze Carbon Ceramic Viton Viton Stainless Steel Stainless Steel Aluminum Stainless Steel

Seal Flushline

fTechnical Data Suction Size: Max. Flow (3600 rpm): Max. Head (3600 rpm): Max. Working Pressure: Max. Operating Temperature:

11/4", 11/2", 2" 130 USgpm (8.2 L/s) 130 ft (39.6 m) 150 psig (1034 kPa) 275°F (135°C)

Motor Mounted Centrifugal Pumps fPerformance Curves Head (m) ft

Head (m) ft

1.25x1x5 3600 RPM

1.25x1x5 1800 RPM (7.6) 25 5.00 in 4.88 in 4.75 in 4.63 in (6.1) 20

26

(30.5) 100 5.00 in

35

42

26

35

42

47

47 51

51

4.63 in

53

53

(24.4) 80

54

54

53

53

4.25 in

4.25 in

51

51

(4.6) 15

(18.3) 60

47

47

3.88 in

42 42%

(3.0) 10

3.50 in

(12.2) 40

2 hp 1.5 hp

35%

N P S H r

(1.5) 5

N P S H r

(6.1) 20 NPSHr

1 hp 0.75 hp 0.5 hp

NPSHr

(0.0) 0

(0.0) 0 0

8

16

24

32

0.0

30.3

60.6

90.8

121.1

0

10

20

30

40

50

60

70

0.0

37.9

75.7

113.6

151.4

189.3

227.1

265.0

(USgpm) (L/min)

(USgpm) (L/min)

Flow Water, spgr= 1.0000

Flow Water, spgr= 1.0000

Head (m) ft

Head (m) ft

1.5x1.25x5.5 1800 RPM (9.8) 32 5.50 in 5.38 in 5.25 in 5.13 in

21

28

34

5.50 in

39

43

21

28

34

39

(36.6) 120

45

43 45

46

46 45

5.00 in

(7.3) 24

1.5x1.25x5.5 3600 RPM

(42.7) 140

5.00 in

(30.5) 100

45

43

43

4.50 in

(24.4) 80

39

39 34

4.00 in

34%

(4.9) 16

(18.3) 60 0.333 hp

3

3.50 in

(12.2) 40 (2.4) 8

N P S H r

1.5

N P S H r

(6.1) 20 NPSHr

(0.0) 0

2

0.75

1

0.5 hp

NPSHr

(0.0) 0 0

8

16

24

32

0.0

30.3

60.6

90.8

121.1

(USgpm) (L/min)

0

10

20

30

40

50

60

70

0.0

37.9

75.7

113.6

151.4

189.3

227.1

265.0

(USgpm) (L/min)

Flow Water, spgr= 1.0000

Flow Water, spgr= 1.0000

Head (m) ft

Head (m) ft

2x1.5x5.5 1800 RPM (9.8) 32 5.50 in

35

46

53

2x1.5x5.5 3600 RPM

(42.7) 140 5.50 in

60

64

5.25 in

(36.6) 120

67

35

46

53

60

64

67

68

5.00 in (7.3) 24

68 67

5.00 in

(30.5) 100

4.75 in

67

64

64 60

60

(24.4) 80 4.50 in

4.50 in 53

53

(4.9) 16

4.00 in

(18.3) 60

46

46%

0.5 hp

N P S H r

N P S H r

0.333 hp

(6.1) 20 NPSHr

(0.0) 0

(0.0) 0 0

10

20

30

40

50

60

70

0.0

37.9

75.7

113.6

151.4

189.3

227.1

265.0

(USgpm) (L/min)

35%

2

1.5 1 0.75

0.5 hp

NPSHr

0

20

40

60

80

100

120

0.0

75.7

151.4

227.1

302.8

378.5

454.2

140 (USgpm) 530.0

(L/min) Flow

Flow Water, spgr= 1.0000

3

(12.2) 40 3.50 in

35%

(2.4) 8

Water, spgr= 1.0000

fDimensions Model 11/4" x 1" 11/2" x 11/4" 2" x 11/2"

A 27/8 (73) 27/8 (73) 27/8 (73)

Motor / , / , / hp 1 hp 11/2 hp 2, 3 hp 5 hp

B 43/4 (121) 43/4 (121) 43/4 (121)

C 313/16 (97) 313/16 (97) 313/16 (97)

W 81/4 (210) 81/3 (212) 81/2 (216)

T 31/8 (79) 31/8 (79) 31/8 (79)

X 43/16 (106) 43/16 (106) 43/16 (106)

Y 43/4 (121) 43/4 (121) 43/4 (121)

L 92/7 (236) 97/9 (248) 102/11 (259) 112/11 (284) 113/8 (289)

1 3 1 2 3 4

Note: Dimensions are in inches (mm). For exact dimensions please write factory. All pump sized are provided with NPT screwed connections.

Discharge

W

B

L

T

A

Vent

Std. 1/4" NPT Gauge Port

Y

Suction

X 1

/4" NPT

37/8"

C

37/8" 51/2" 7"

ø 3/8 X 1" Slot ø 3/8 X 11/2" Slot

fTypical Specifications Furnish and install, as shown on the plans and specifications, an Armstrong Series 4270 End Suction Motor Mounted Centrifugal Pumping Unit suitable for 150 psig (1034 kPa) working pressure with radially-split __________ casing, PEI resin or bronze impeller, 416 stainless steel shaft and single inside-type 21 mechanical seal. The driving motor shall be horizontal, solid shaft, squirrel cage induction motor with NEMA C flange and ________ enclosure, suitable for operation on a ______ volt, _________ cycle _______ phase power supply. The complete unit shall be suitable for ______ as shown on the pump schedule, or for the following service: _______, capacity ______ USgpm (L/s), total head _____ feet (m), liquid _______, temperature _______ °F (°C), viscosity ______ SSU, pump size ______, speed _______ rpm, motor rating __________ hp.

S. A. Armstrong Limited 23 Bertrand Avenue Toronto, Ontario Canada, M1L 2P3 T: (416) 755-2291 F (Main): (416) 759-9101

Armstrong Pumps Inc. 93 East Avenue North Tonawanda, New York U.S.A., 14120-6594 T: (716) 693-8813 F: (716) 693-8970

Armstrong Holden Brooke Pullen Wenlock Way Manchester United Kingdom, M12 5JL T: +44 (0) 161 223 2223 F: +44 (0) 161 220 9660 © S.A. Armstrong Limited 2008

For Armstrong locations worldwide, please visit www.armstrongpumps.com

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