WARNING:
Be sure that there is nothing remaining in the pump that could react
with the liquid that will be pumped or that would have an excessive
vapor pressure at the system operating temperature. For example,
water residue left in the pump, when exposed to the operating tem-
perature of the system, would create a vapor pressure in excess of
the capability of the system to retain it, therefore causing an explo-
sion that could prove fatal.
4) Replace the casing drain plug and the seal vent plug.
5) Remove the “storage” protective coating from the external sur-
faces of the pump.
Pumps must also be protected from moisture, dirt, and physical dam-
age, during and after installation while the system is being complet-
ed. Pumps “stored” on their foundations must be completely checked
for proper installation prior to start-up.
Care in storage and installation will preserve the built-in quality of
each Dean Product.
RA SERIES
FAN COOLED, HORIZONTAL, SINGLE STAGE, END SUCTION, ENCLOSED IMPELLER, CENTRIFUGAL HOT OIL PUMPS. THESE PUMPS ARE
DESIGNED SPECIFICALLY FOR USE WITH HEAT TRANSFER OILS. THESE PUMPS WILL NOT WORK ON OTHER LIQUIDS.
2
MECHANICAL DESIGN SPECIFICATIONS
ALLOWABLE WORKING PRESSURE VS. PUMPING TEMPERATURE
(1) Cast Iron
(2) AISI 1020
(3) SAE Grade 5 or ASTM A449
Type 1 Steel
(4) AISI 4140 ASTM AI93-B7 Steel
(5) ASTM AI94 Grade 2 Steel
(7) Hardened Iron
THESE PUMPS ARE DESIGNED SPECIFICALLY FOR USE WITH
HEAT TRANSFER OILS. THESE PUMPS WILL NOT WORK ON
OTHER LIQUIDS.
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
/2”
L
3
/D
4
4.3 2.1 2.8
Material Class 22 (Ductile Iron) 22 (Ductile Iron) 22 (Ductile Iron)
Maximum Working Pressure 250 PSIG @100ºF 350 PSIG 350 PSIG
Pumping Temperature
Minimum
Maximum
-20ºF @ 250 PSIG
650ºF @ 125 PSIG
-20ºF
650ºF
-20ºF
650ºF
Maximum Ambient Temperature
(temp. within 12” of pump) 104ºF 118ºF 118ºF
Hydrostatic Test Pressure 430 PSIG 550 PSIG 550 PSIG
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
(8) ANSI 316 S/S with ANSI 416 S/S at the sleeve bearing
(9) Ductile Iron – ASTM A536
(10) Ductile Iron – ASTM A395
(11) Grafoil
®
(12) ANSI – 420 S/S
(13) Viton
®
Elastomer
(14) Buna N Rubber
Viton
®
is a registered Trademark of E.I. DuPont Co.
Grafoil
®
is a registered Trademark of Union Carbide Corp.
*Denotes parts interchangeability in all pump sizes of a given series.
STANDARD MATERIALS OF CONSTRUCTION
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