Mechanical Design Specifications — Previous Page
Mechanical Design Specifications
PUMP TYPE:
RA2096
RA3146
RA3186
Direction of Rotation
(Viewed from Coupling End)
CW
CCW
CCW
Casing Thickness, Minimum
5/16"
5/16"
5/16"
Corrosion Allowance
1/8"
1/8"
1/8"

Impeller Balance
  Standard
  Optional Extra


Single Plane
Dynamic


Single Plane
Dynamic

Single Plane
Dynamic

Flanges
  ANSI Class
  Facing
  Finish


150
Flat Face
125 Ra

300
Raised Face
125 Ra

300
Raised Face
125 Ra
Suction Pressure, Maximum
100 PSIG
100 PSIG
100 PSIG

Horsepower Rating, Maximum
  @3500 RPM
  @1750 RPM
  @1150 RPM


35
15
10

100
40
25

250
125
75

Bearings:
  Thrust Bearing, Ball Type,
    Grease Lubricated
  Rarial Bearing, Sleeve Type,
    Pumpage Lubricated

5306 2RS
Double Row
7308 BG
Angular
Contact Pair
7311 BG
Angular
Contact Pair
Seal Chamber Dimensions
  Length (Depth)
  Inside Diameter (Bore Dia.)
  Shaft Diameter

1-5/8"
2-1/16"
1-1/8"

2-13/16"
3-1/8"
1-3/4"


3-7/8"
4-5/16"
2-1/4"

Pump Shaft Dimensions
  Span Between Bearings
  Span Between Radial
    Bearing Centerline and
    Impeller Centerline
  Diameter at Coupling
  Diameter Between Bearings
  Diameter at Impeller


8-11/16"


1-5/8"
7/8"
15/16"
3/4"

11-7/16"


2-5/16"
1-1/8"
1-9/16"
1-1/8"

14-5/8"


3-1/4"
1-5/8"
1-7/8"
1-1/8"
L3/D4
4.3
2.1
2.8
Material Class
22 (Ductile Iron)
22 (Ductile Iron)
22 (Ductile Iron)
Maximum Working Pressure
250 PSIG @ 100°F
350 PSIG
350 PSIG
Pumping Temperature
  Minimum
  Maximum

-20°F @ 250 PSIG
650°F @ 125 PSIG


-20°F
650°F


-20°F
650°F
Maximum Ambient Temperature
  (temp. within 12" of pump)
104°F
118°F
118°F
Hydrostatic Test Pressure
430 PSIG
550 PSIG
550 PSIG

Standard Materials of Construction
Part No.
Part Name
RA2096
Class 22
RA3146
Class 22
RA3186
Class 22
3
Impeller
C.I. (1)
C.I. (1)
C.I. (1)
*4
Impeller Key
Steel (2)
Steel (2)
Steel (2)
5
Casing
D.I. (10)
D.I. (10)
D.I. (10)

5A

Casing Drain Plug

Steel (2)
Steel (2)
Steel (2)

5C

Casing Stud Nut
N.A.
Steel (5)
Steel (5)
5D
Casing Stud/Cap Screw
Steel (3) Screw
Steel (4) Stud
Steel (4) Stud

6A

Casing Ring (Only Some Sizes)
N.A.
Iron (7)
Iron (7)

9

Bearing Housing Foot
Steel (2)
Steel (2)
Steel (2)
*12
Impeller Bolt/Nut
Steel (2) Nut
Steel (2) Bolt

Steel (2) Bolt

*12A

Impeller Washer
Steel (2)
Steel (2)
Steel (2)
*13
Mechanical Seal Gland
Steel (2)
Steel (2)
Steel (2)
*25A
Shaft Bearing – Thrust – Ball
Double Row
Angular
Contact Pair
Angular
Contact Pair
26
Bearing Housing
D.I. (10)
D.I. (10)
D.I. (10)
*28
Bearing End Cover

C.I. (1)

Steel (2)
D.I. (9)
*29
Pump Shaft
11-13 S/S (12)
11-13 S/S (12)
11-13/
316 S/S (8)
*31
Thrust Bearing Lock Nut
N.A.
Steel (2)
Steel (2)
*31A
Thrust Bearing Lock Washer
N.A.
Steel (2)
Steel (2)
56
Casing Foot
N.A.
C.I. (1)
C.I. (1)
*75
Snap Ring
N.A.
Steel (2)
N.A.
*75A
Snap Ring
Steel (2)
N.A.
N.A.
*76
Grease Seal – Front
Viton (13)
Viton (13)
Viton (13)
*76A
Grease Seal – Rear
N.A.
Buna (14)
Buna (14)
77
Casing Gasket
Grafoil (11)
Grafoil (11)
Grafoil (11)
*77B
Bearing End Cover Gasket
N.A.
Buna (14)
Buna (14)
*84
Barrier Oil Fill Plug
Steel (2)
Steel (2)
Steel (2)
*92
Barrier Oil Drain Plug
Steel (2)
Steel (2)
Steel (2)
*95A
Mechanical Seal Stationary
Silicon Carbide & Viton
Silicon Carbide & Viton
Silicon Carbide
& Viton
*95B
Mechanical Seal Rotary
S/S, Carbon
& Viton
S/S, Carbon
& Viton
S/S, Carbon
& Viton
98
Coupling Guard
Steel (2)
Steel (2)
Steel (2)
*120
Fan
Aluminum
Aluminum
Aluminum
*121
Fan Collar
N.A.
Steel (2)
Steel (2)
*122
Fan Clamp Ring
Steel (2)
Steel (2)
Steel (2)
*180
Radial Bearing Cartridge
Carbon & Steel
Carbon & Steel
Carbon
& 416 S/S
*325
Seal Gland Gasket
Viton (13)
Viton (13)
Viton (13)
*365
Mechanical Seal Retainer
Steel (2)
Steel (2)
Steel (2)
*370
Seal Retainer Set Screw
Steel
Steel
Steel
*375
Anti-Rotation Pin
N.A.
N.A.
316 S/S

*Denotes parts interchangeability in all pump sizes of a given series.
(1)
  Cast Iron
(5)
  ASTM 194 Grade 2 Steel
(11)
  Grafoil®
(2)
  AISI 1020
(7)
  Hardened Iron
(12)
  ANSI – 420 S/S
(3)
  SAE Grade 5 or ASTM A449 Type 1 Steel
(8)
  ANSI 316 S/S with ANSI 416 S/S at the sleeve bearing
(13)
  Viton® Elastomer
(4)
  AISI 4140 ASTM A193-B7 Steel
(9)
  Ductile Iron – ASTM A536
(14)
  Buna N Rubber
   
(10)
  Ductile Iron – ASTM A395  
Viton® is a registered Trademark of E.I. DuPont Co.
Grafoil® is a registered Trademark of Union Carbide Corp.
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Dean Pump Division
6040 Guion Road
Indianapolis, IN 46254
Phone:317-293-2930
Fax: 317-297-7028
E-mail: info@deanpump.com
© 2007 Dean Pump Division
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