N91060GKC_2000

N91060GKC_2000
BRONZE ROTARY GEAR PUMPS
CARBONATOR MOTOR MOUNTED
OBERDORFER PUMPS
MODEL
N91060GKC
A Subsidiary of Thomas Industries Inc.
1/4” NPT PORTS
PERFORMANCE
o
Capacity - Water 60 F 1725 R.P.M.
FEATURES
n Bronze Body, Stainless Steel Shaft
n Buna N Mechanical Seal
n Helical Gears for Quiet Operation
n Self-lubricating Carbon Bearings
n Carboantor Motor Mount
GENERAL DESCRIPTION
The carbonator motor mounting uses a circular clamp,
similar to a hose clamp, as means of attaching the pump to a
specially machined hub on the motor. This concept was first
developed for the vending machine industry to pump carbonated beverages in soft drink dispensers. The main advantages are compactness and economy due to the elimination
of the adapter casting. Carbonator motors are readily available from electric motor distributors.
The rotary gear pump features an all bronze design
and 303 stainless steel shafts with options of non-metallic
gears and a variety of shaft seals. The built-in relief valve is
available in two options; internal recirculation to suction side
or external connection for return line to supply tank.
SUCTION LIFT
For a first start-up, the pump should be primed to avoid
dry running. Gear pumps are self-priming, but a foot valve
with strainer is recommended at the beginning of the suction
line. This will keep the gear chamber primed to insure instant
flow when the pump is started. maximum suction lift is 20
feet. The suction line should be as short as possible.
www.oberdorfer-pumps.com
Pump Series
PSI
2
20
40
60
80
100
N91
GPM
2.1
1.9
1.8
1.7
1.6
1.5
LIQUIDS AND TEMPERATURE
Bronze pumps are suitable for water, oil, and mild chemicals
in the pH-range from 4-10. Viscous liquids may be handled with
carbonator pumps up to a viscosity of 300 SSU. Higher viscosities
require a pump speed lower than 1725 RPM, which is currently not
available in carbonator motors.
Liquids containing abrasives, solids, powders or pigments
are highly detrimental to pump life and must be avoided. The recommended liquid temperature range is from 32oF to 140oF. If more
extreme temperature conditions exist, factory should be consulted.
Allowing the liquid to freeze in the pump can cause damage.
ROTATION AND RELIEF VALVE
The relief valve is not intended to be a metering or flow control device. Its main purpose is not intended to be a metering or
flow control device. Its main purpose is to function as a discharge
pressure relief when the spring tension is exceeded by the discharge pressure. Overheating can occur within 5-10 minutes if the
discharge line is completely shut off for extended periods.
Unless otherwise specified, the pump motor unit is supplied
by the factory for shaft rotation clockwise from shaft end. Reversing
the motor rotation will reverse the “in” and “out” ports and also
requires changing the relief valve location. The relief valve is
always on the discharge side in this pump series. The factory pressure setting is 50 PSIG. To increase pressure, turn the relief valve
adjusting screw in a clockwise direction.
To reverse single phase motors, find instructions on the
inside of the junction box cover or on the name plate of the motor.
PHONE 800-448-1668; (315) 437-0361
FAX (315) 463-9561
MODEL
N91060GKC
BRONZE ROTARY GEAR PUMPS
CARBONATOR MOTOR MOUNTED
OBERDORFER PUMPS
A Subsidiary of Thomas Industries Inc.
DIMENSIONS
Specifications are subject to change without notice.
EXPLODED VIEW AND PARTS LIST
1
1
1
2
1
1
2
3
4
5
6
7
8
9
10
No.
Screw
Body
O-Ring
Bearing
Idle
Drive
Cover
Snap
Seal
Snap
Gear Assy.
Gear Assy.
6 Req'd
1 Req'd
1 Req'd
1 Req'd
32979
32977
N91060GKC 5013
1
1
Pump
1 Req'd 4 Req'd
9300NB5N-C 9797-033
5024
12
13
Coupler Clamp
Poppet/
Ring
Ball
1 Req'd 1 Req'd 1 Req'd 1 Req'd 1 Req'd
1 Req'd
Ring
1 Req'd
1
11
9305NN4L-C 5373
32584
7639
9175
8840
7640/5809
14
15
Spring Adjust.
16
17
18
Fiber
Lock
Valve
Nut
Nut
Screw Washer
19
Dowel Repair
Pin
Kit
1 Req'd 1 Req'd 2 Req'd 1 Req'd 1 Req'd 2 Req'd
5806
5766
6966
5774
5767
8885
11969
Repair Kits include items 3, 4, 5, 6, 9 & 11.
10/00
www.oberdorfer-pumps.com
PHONE 800-448-1668; (315) 437-0361
FAX (315) 463-9561
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