119MP_2006

119MP_2006
MODEL
119MP
BRONZE PEDESTAL
CENTRIFUGAL PUMP
PIPE SIZE: INLET 1 1/4”, OUTLET 1”
Capacity - Water at 60o F
FEATURES
• Rugged Bronze Construction
• Quiet Operation
• O-Ring housing seal eliminates gasket problems
• Mechanical Seal
Buna- standard
Viton® (S10) optional
• Designed for Pulley Drive
Stainless Steel Shaft Standard
Monel Shaft (119MP-01) optional
Independent Sealed Ball bearings
No Bearing Lubrication required
• Handles contaminated liquids
• Discharge port orientation flexibility - 8 positions
USES
Silent, efficient, centrifugal pumping is ideal for convenient equipment location in offices, laboratories, public areas,
and living quarters. Long trouble-free service life has made
centrifugal pumps acceptable for industrial uses or wherever
clean or contaminated liquid is to be transferred or handled.
The 119MP centrifugal pumps have external ball bearings isolated from the liquid being pumped. The ball bearings
are grease sealed for life requiring no maintenance.
CHARACTERISTICS
Oberdorfer centrifugal pumps have a single rotating
metal impeller. Liquid enters at the center and is thrown outward radially by centrifugal force. The impeller is not in contact with other pump parts resulting in quiet, efficient, pumping action. The flow produced is not positive which permits
the discharge line to be shut off completely without danger of
overloading motors or bursting lines. Consequently a relief
valve is not required.
The liquid flow varies directly as the pump speed--the
higher the speed the greater the flow. Horsepower required
varies directly as flow and pressure. Maximum horsepower is
required with a wide open discharge line. This is the point of maximum flow. With a throttled discharge, the flow decreased at a greater
rate than the pressure increases thereby requiring less horsepower
at the higher pressures. This is known as an “unloading” feature of
the pump.
This centrifugal pump is not self priming. Normally these
pumps must be installed below the liquid level so that the liquid flows
to the pump by gravity. However, if a foot valve is used at the beginning of the suction line and all air is bled from the suction line and
pump by careful manual priming, these pumps will lift liquid on the
suction side up to 15 ft. Such a system is only as positive as the ability of the foot valve to seal and keep the suction line and pump full
of liquid. If the foot valve should leak, the pump will not prime.
The pedestal centrifugal pumps can be direct driven by electric
motors at either 3450 R.P.M. or 1725 R.P.M. Performance for both
speeds is listed in the capacity chart above. The 119MP pedestal
centrifugal pumps can be pulley driven at any desired intermediate
speed.
Because centrifugal pumps are more efficient at higher shaft
speeds, pumping of viscous or thick liquids is difficult. It is possible
to lose as much as 40% pump performance when attempting to
pump liquids of viscosity equal to S.A.E. 30 oil at room temperature.
(continued on back)
Viton® is a registered trademark of DuPont Dow Elastomers. Viton® or equivalent FKM will be used.
www.oberdorfer-pumps.com
PHONE (800) 448-1668; (315) 437-0361
FAX (315) 463-9561
MODEL
119MP
BRONZE PEDESTAL
CENTRIFUGAL PUMP
EXPLODED VIEW AND PARTS LIST
Pump
Number
1
2
3
4
5*
6*
7*
Screw
Screw
Plug
Body
O-ring
Impeller
5 Reqd
3 Reqd
2 Reqd
1 Reqd
1 Reqd
1 Reqd
Seal
Assembly
1 Reqd
8
Pedestal
1 Reqd
9*
Shaft
10
11*
12*
13
Key
Ball
Bearing
Ret.
Ring
Ret.
Lip
Repair
Ring
Seal
Kit
1 Reqd 1 Reqd
2 Reqd
14*
2 Reqd 1 Reqd 2 Reqd
119MP
5504
5633
5395
5266
9797-157
6179
32155
6887
7037
6567
5928
5926
5925
6609
10901
119MP-01
5504
5633
5395
5266
9797-157
6179
32155
6887
6890
6567
5928
5926
5925
6609
10917
119MPS10
5504
5633
5395
5266
9797-157
6179
32210
6887
7037
6567
5928
5926
5925
6609
12318
DIMENSIONS
(continued)
S.A.E. 30 oil at room temperature has a viscosity of 2000 Saybolt
Seconds Universal. More viscous liquids are not recommended for
centrifugal pumps.
Heavy liquids can be pumped; however, they demand more
horsepower in direct ratio to the weight of water. For example, carbon
tetrachloride has a specific gravity of 1.6 which means it is 1.6 times
heavier than water and the horsepower required is 1.6 times water
horsepower.
3/06
www.oberdorfer-pumps.com
LIQUIDS AND TEMPERATURES
Bronze pumps are suitable for most common liquids in
the PH-range from 4 to 11.
The temperature limit for bronze pumps is 212oF, higher temperatures are possible with Viton® seals. If in doubt, consult
factory.
SHAFT SEAL OPTIONS
Mechanical Shaft Seals have Buna N rubber components (212oF max) as standard. For temperatures up to
400oF, a Viton® seal must be selected by adding code S10 to
the pump number.
Specifications are subject to change without notice.
PHONE (800) 448-1668; (315) 437-0361
FAX (315) 463-9561
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