101_2000

101_2000
OBERDORFER
MODEL
101
101B
HELICAL ROTOR PUMP
BRONZE OR ALUMINUM
PIPE SIZE 3/4
FEATURES
g All Bronze or Corrosion Resistant Aluminum
Construction
g Easily Mounted in Field to your own 56 Frame
Motor & 56C for explosion-proof motors
g Carbon Face Mechanical Seal
g Quiet Running
g Can Handle Contaminated Liquids
g Buna Stator and Stainless Steel Rotor
Pump No.
Motor
Material
101 J25
1/2 H.P. 115V 1 Phase
Aluminum
101 M07
3/4 H.P. 115V 1 Phase
Aluminum
101B J25
1/2 H.P. 115V 1 Phase
Bronze
101B M07
3/4 H.P. 115V 1 Phase
Bronze
101
None (Pump Only)
Aluminum
101B
None (Pump Only)
Bronze
piston pumping, extremely high pressure cannot be created
because the stator is made of Buna N and is flexible. Because of
this flexibility contaminated liquids can be handled.
Close fit of the rotor within the stator permits lifting of liquid on
the suction side as high as 20 ft. High starting torque motors are
recommended in order to overcome the high starting friction of the
stator. The pump is relatively quiet.
ROTATION
This helical rotor design demands a single rotation - clockwise
when facing the pump drive shaft. Pump rotation and “in” and “out”
ports are indicated on the dimension diagrams on reverse side.
ELECTRIC MOTOR MOUNTING
This pump is supplied close coupled to electric motor or as
a pump alone complete with attaching parts and instructions for
mounting. Any 56 frame electric motor with 5/8 inch shaft diameter, 1725 R.P.M. and of horsepower rating as listed above can
be used. The motor can be rigid or resilient mounted, sleeve or
ball bearings, 50oC rise, capacitor start, counter-clockwise, rotation from shaft end.
MATERIALS OF CONSTRUCTION
These pump housings and mounting brackets are made from
cast aluminum or bronze alloy. The rotor is made from stainless
steel with a hard chrome plate for improved wear properties. The
stator is made from molded Buna N. The mechanical seal is a carbon and ceramic mechanical rotary face type for positive sealing.
LIQUIDS
CHARACTERISTICS
The corrosion resistant alloys used are compatible with common liquids including water, water solutions, oils and many commercial chemicals. Severe solvents are not compatible with the Buna
and should not be pumped.
The turning of the helical shaped rotor within the stationary
stator creates a progressive cavity similar to a moving piston.
Liquid is thus displaced generating a pumping action. Unlike
CAPACITY - WATER 60 O F
Pressure P.S.I.
Flow G.P.M. (Water)
0
8 1/2
10
8
20
7 1/2
30
7
40
6 1/2
50
6
60
5 1/2
70
5
80
4 1/4
90
3 3/4
100
3 1/4
Electric Motor H.P.
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
3/4
3/4
3/4
6/00
www.oberdorfer-pumps.com
PHONE 800-448-1668; (315) 437-0361
FAX: 315-463-9561
OBERDORFER
MODEL
101
101B
HELICAL ROTOR PUMP
BRONZE OR ALUMINUM
PARTS LIST
ELECTRIC MOTOR MOUNTING
1
2
3
4*
5*
6
7
8-9-10*
11
12
13
Pump
Adapter
Body
Cover
Rotor
Stator
Drive
Universal
Seal
Ball
Foot
Collar
No.
Bracket
Shaft
Joint
Assem.
Bearing
14
15
16*
Retaining Retaining Gasket
Ring
Ring
17
18*
19*
Spacer
Pin
Pin
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
1 Reqd
4 Reqd
1 Reqd
101 J25
5871
5873
5872
5890
5891
5875
5874
32156
5884
5881
5886
5885
6053
5882
5911
5888
5889
101 M07
5871
5873
5872
5890
5891
5875
5874
32156
5884
5881
5886
5885
6053
5882
5911
5888
5889
101B J25
7213
6897
6896
5890
5891
5875
5874
32156
5884
5881
5886
5885
6053
5882
5911
5888
5889
101B M07
7213
6897
6896
5890
5891
5875
5874
32156
5884
5881
5886
5885
6053
5882
5911
5888
5889
* Repair Kit No. 10737 includes these parts.
20
21
22
23
24
25
26
27
Stud
Nut
Plug
Screw
Key
Screw
Washer
Motor
1 Reqd
2 Reqd
1 Reqd
14 Reqd
1 Reqd
4 Reqd
4 Reqd
4 Reqd
5887
5597
5908
5897
5912
5916
5915
5918
5887
5597
5908
5897
5912
5916
5915
5913
5887
5597
5395
5897
5912
5916
5915
5918
5887
5597
5395
5897
5912
5916
5915
5913
H
J
DIMENSIONS
Pump No.
101 J25
C
D
E
13/16 4 9/16 11 7/8
F
G
18 1/2
2 1/16
10 7/32 1 1/16
K
3
L
M
N
11/32 1 9/16 3 1/2
O
P
R
S
T
6 1/2
8 9/16
11/32
4 7/8
1 3/16
101B J25
6/00
www.oberdorfer-pumps.com
Specifications are subject to change without notice.
SYRACUSE, NEW YORK 13221
PHONE 800-448-1668; (315) 437-0361
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