111_2012

111_2012
Bronze or Aluminum Close Coupled
Helical Rotor Pump
111 • 111B
Pipe Size 3/4"
CHARACTERISTICS:
The turning of the helical shaped rotor within the
stationary stator creates a progressing cavity similar to
a moving piston. Liquid is thus displaced generating a
pumping action.
Unlike 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.
FEATURES:
• All Bronze or Corrosion Resistant Aluminum
Construction
• Carbon Face Mechanical Seal
• Quiet Running Pump
• Can Handle Contaminated Liquids
• Buna Stator and Stainless Steel Rotor
• Easily Mounted in Field to Standard Briggs Stratton
or Tecumseh Engines
GASOLINE ENGINE MOUNTING:
This pump is supplied close coupled to gasoline engine
or as a pump alone complete with attaching parts and
instructions for mounting. Any 2 or 4 cycle gasoline engine having a standard SAE. 4 bolt mounting flange and
5/8" shaft diameter with keyslot can be used. An engine
rating of at least 2.2 horsepower at 3600 RPM. is necessary as only about one-half of rated power is available
at the recommended pump speed of 2100 RPM. Larger
horsepower engines (3 HP at 3600 RPM) with 5/8" shaft
diameter and suitable flange mounting provide extra
power to compensate for power losses due to carbon
deposits and gumming.
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 rotary face type for positive sealing.
LIQUIDS:
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.
Pressure PSI
Flow GPM (Water)
0
10
10
9 1/2
20
9
30
8 1/2
40
8
50
7 1/2
60
7
70
6
80
5
90
4 1/2
100
4
Bronze or Aluminum Close Coupled Helical Rotor Pump
111 · 111B
Exploded View and Parts List
1
2
3
5*
6
Rotor
Stator
Drive
Shaft
Qty. 1
Qty. 1
Qty. 1
Qty. 1
Qty. 1
5872
5890
5891
5875
5874
6896
5890
5891
5875
5874
32156
Adapter
Bracket
Body
Cover
Model
Qty. 1
Qty. 1
111 UGY
5871
5873
111B UGY
7213
6897
4*
7
8-9-10*
11
Universal
Seal
Joint
Assembly
12
13
14
15*
16
Ball
Bearing
Foot
Collar
Qty. 1
Qty. 1
Qty. 1
Qty. 1
Qty. 1
Qty. 1
Qty. 4
32156
5884
5881
5886
5885
5882
5911
5884
5881
5886
5885
5882
5911
Retaining
Gasket
Ring
Spacer
17*
18*
20
21
22
23
24
25
26
27
28
29
30
31
Pin
Pin
Nut
Plug
Screw
Key
Screw
Washer
Handle
Screw
Screw
Stud
Lug
Engine
Model
Qty. 1
Qty. 1
Qty. 1
Qty. 2
Qty. 14
Qty. 2
Qty. 2
Qty. 4
Qty. 1
Qty. 4
Qty. 2
Qty. 1
Qty. 4
Qty. 1
111 UGY
5888
5889
5597
5908
5897
5912
5916
5915
5919
5930
5595
5922
5921
7230
111B UGY
5888
5889
5597
5395
5897
5912
5916
5915
7402
5930
5595
5922
5921
7230
* Repair Kit No. 10737 contains these parts and compression plate tool for seal removal
Dimensions
Pump. No.
111 UGY &
111B UGY
Pump. No.
111 UGY &
111B UGY
C
13/16
L
11/32
D
4 9/16
M
1 9/16
E
11 1/4
N
4 3/16
F
20 17/32
O
15 1/2
G
2 1/16
P
12 7/16
H
9 19/32
R
11/32
J
1 13/32
S
2 19/32
K
3 1/8
T
3 25/32
With Briggs & Stratton Engine No. 5/8 dia keyed shaft
Visit www.oberdorfer-pumps.com to find in-depth
descriptions of the world’s leading high-quality,
dependable pumps.
5900 Firestone Drive, Syracuse, NY 13206
Phone: (800) 448-1668; (315) 437-0361 • Fax: (315) 463-9561
Due to ongoing product improvements, data shown here
is subject to change without notice. Contact Oberdorfer
Pumps for latest specifications.
111.101912
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