Appendix “a” engineering data, Casing data, Stuff box data – Xylem 8100 Series Centrifugal Pumps AC2515 REV.C User Manual

Page 56: Impeller design data, Shaft and bearing data

APPENDIX “A” ENGINEERING DATA

Pump Size

10x8x20L

10x10x12

12x10x12

12x10x12XL

12x10x14

12x10x17

12x10x18

CASING

DATA

(All Dimensions in Inches)

125# FF Std

Max. Suction Pressure

f ASA Flanges

Max. Working Pressure

175

h NOMINAL 175 PSI Max. Hydrostatic Test Pressure

262

Working Press.

Casing material

Cast I

g 250# FF

Max. Suction Pressure

200

c NOMINAL 280 PSI Max. Working Pressure

280

h Working Press.

Max. Hydrostatic Test Pressure

420

Casing material

Ductile I

g 250# FF

Max. Suction Pressure

300

d NOMINAL 400 PSI Max. Working Pressure

400

e Working Press.

Max. Hydrostatic Test Pressure

600

Casing material

Ductile I

Casing Wall

Thickness

.62 .44 .44 .56 .56 .56 .56

STUFF BOX DATA

(All Dimensions in Inches)

Packing

Bore

3.75 3.25 3.25 3.25 .375 3.75 3.75

Dimensions

Depth

3.62 3.50 3.50 3.50 3.62 3.62 3.62

Sleeve

O.D.

2.75 2.25 2.25 2.25 2.75 2.75 2.75

Packing Size/No. Rings W/O S. Cage

6.50

Packing Size/No. Rings W/ S. Cage

5.50

Seal Cage Width

.94 .75 .75 .75 .94 .94 .94

Mech. Seal

Bore

2.75

3.125

On Shaft

Depth

3.00

3.25

i Dimensions

Mech. Seal Size (Type 21 or 1)

1.75

2.000

Balanced Mech.

Major Dia.-->

1.88

2.12

{

Seal Size (Type 1B)

Major Dia.-->

1.75

2.00

Mech.

Seal

Bore

4.00 3.38 3.38 3.38 4.00 4.00 4.00

Sleeves

Depth

3.12 3.00 3.00 3.00 3.12 3.12 3.12

Dimensions

Mech. Seal Size (Type 21 or 1)

2.75

2.25

2.75

Balanced Mech.

Major Dia.-->

2.88

2.38

2.88

{

Seal Size (Type 1B)

Major Dia.-->

2.75

2.25

2.75

IMPELLER DESIGN DATA

(All Dimensions in Inches)

No. of Vanes

Inlet Area (Sq. Inches)

74.0

86.4

77.2

87.3

93.6

86.4

53.4

Inlet

Velocity

per 100 GPM (Ft/Sec)

.43 .37 .42 .37 .34 .37 .60

Maximum

Diameter

20.2 12.8 12.8 13.8 14.0 17.5 18.0

Minimum Diameter

12.0 9.3 8.7 8.7 10.0 10.0 12.5

Maximum Sphere

.72

1.54

1.12

1.56

1.62

1.36

.90

WR ^2 for Maximum Diameter (Lbs-Ft^2)

22.5

11.7

15.5

18.0

22.3

24.2

j Wear Ring Clearance – Diam. 175# & 280# W.P.

.010-.012

ej Wear Ring Clearance – Diam. 400# W.P.

.020-.024

.020-.024 .020-.024 .020-.024 .020-.024 .020-.024 .020-.024

SHAFT AND BEARING DATA

(All Dimensions in Inches)

Under

Sleeve

2.374 2.374 2.374 2.374 2.374 2.374 2.374

Under Mech. Seal on Shaft Type 21 or Type 1

2.000

Under Mech. Seal on Shaft Type 1B

2.125

Coupling

1.625 1.625 1.625 1.625 1.625 1.625 1.625

Thru Impeller with Packing – Mech. Seal on Sleeve

2.437

k Thru Impeller with Mech. Seal on Shaft

2.439

Shaft Span

Bearing to Bearing Centerline

29.90

32.90

29.90

Inboard 6309

6309

Ball Bearings

Outboard 5308

5308

Packing

F20-E4 F20-F4 F20-F4 F20-F4 F20-E4 F20-E4 F20-E4

Mech. Seal on Shaft

F20-F5

F20-E5

Frame Designation

Mech. Seal on Shaft Sleeve

F20-E6

F20-F6

F20-E6

c With 250# FF flanges and 280# PSIG working pressure refer to pump as

M3x2x11S.

d With 250# FF flanges and 400# PSIG working pressure refer to pump as

H3x2x11S.

e For pumps with 400 PSI working pressure, wear ring clearances are doubled.

Derate pump efficiencies by 2 percentage points.

f Flange dimensions are in accordance with ANSI A21.10, AWWA C110 & ANSI

B16.1 class 125.

g Flange dimensions are in accordance with ANSI B16.1 class 250 except flanges

are flat faced, i.e. FF.

h The hydrostatic test will be accordance with the latest edition of the Hydraulic

Institute Standards, test will maintained for a minimum of 5 minutes.

i Type 1 and 21 seals have the same working lengths.
j For bronze impellers and casing rings. For diametral clearances for other

materials, consult factory.

Impeller is a light press fit on shaft, do not use construction with stainless steel

impellers.

Not available in mechanical seal on shaft arrangement.