830_2006

830_2006
MODEL
830B
BRONZE CLOSE COUPLED
CENTRIFUGAL PUMP
PIPE SIZE: INLET 1 1/2”, OUTLET 1 1/4”
PERFORMANCE
Capacity - Water at 60oF
FEATURES
•
•
•
•
•
•
•
•
•
Bronze Construction
Stainless Steel Shaft
Carbon Face Mechanical Pump Seals - Buna STD
Viton(R)* (S10) or Teflon(R)* (S11) Pump Seals
Available for Solvent Transfer
Field convertible to pedestal drive model
Will Handle Contaminated Liquids
Extremely Quiet
Pump-heads only easily field mounted to
standard footless “C” flange motors
Keyless impeller option (830B-07)
LIQUIDS
The special pump alloys used provide corrosion resistance to many liquids including water, water solutions, and a
wide range of commercial chemicals. Questions as to the
chemical compatibility of special liquids should be referred to
the factory.
Viscous liquids with a maximum viscosity of 2000
Saybolt Seconds Universal can be pumped. However, when
pumping viscous liquids as compared with water, a reduction
in flow and pressure occurs and the required horsepower
rate increases.
Liquids heavier than water require additional horsepower in direct proportion to the increase in specific gravity.
Liquids contaminated with small solids or abrasives can be
handled, but a reduction in mechanical seal life must be
expected.
CHARACTERISTICS
This close-coupled pump uses a standard NEMA
56Cmotor with no base. Single phase motors are non-
reversible and are wired for the proper pump rotation which is
counter-clockwise looking at inlet end of pump. See the dimensional drawing on back. Three phase motors must be checked out
for proper rotation when pump is installed. Interchanging of any 2
wires in a 3-phase system will reverse motor rotation.
The pump uses a mechanical type shaft seal with a Buna
rubber element. It is suitable for water, oils, and some mild solvents
and it is limited to 212o F. Viton(R)* seals and Teflon(R)* seals are
available for severe solvents, difficult chemicals, and elevated temperatures.
These centrifugal pumps are not self-priming. They must be
installed below the liquid level so that the liquid flows to the pump
by gravity (flooded suction). However, if a foot valve is used at the
beginning of the suction line, and all air is bled from the pump by
manual priming, the pump will lift on the suction side up to 15 feet.
Such a system relies entirely on the non-leaking foot valve for starting capability.
The flow of a centrifugal pump can be conveniently controlled
by a throttling valve in the discharge line without the need for a
relief valve. In centrifugal pumps, the horsepower demand will
decrease as the pressure increases. Maximum horsepower occurs
with a wide open discharge.
* Viton(R) is a registered trademark of DuPont Dow Elastomers. Viton(R) or equivalent FKM will be used.
Teflon(R) is a registered trademark of DuPont. Teflon(R) or equivalent PTFE will be used.
www.oberdorfer-pumps.com
PHONE (800) 448-1668; (315) 437-0361
FAX (315) 463-9561
MODEL
830B
BRONZE CLOSE COUPLED
CENTRIFUGAL PUMP
EXPLODED VIEW AND PARTS LIST
1
2
3
4
51
61
71
8
9
10
11
12
13
14
15
Plug
Body
Screw
Lock
Impeller
Seal
Gasket
Screw
Adapter
Key
Shaft
Key
Collar
Collar
Motor
Pump No.
Wash.
Assy.
4 Reqd 1 Reqd 1 Reqd 1 Reqd 1 Reqd 1 Reqd 1 Reqd 12 Reqd
1 Reqd
Repair
Kit1
1 Reqd 1 Reqd 1 Reqd 1 Reqd 1 Reqd 1 Reqd
830B
5395
7585
7656
7395
32353
32346
7425
5411
7586
7428
7421
6845
5886
7658
---
10953
830B-07
5395
7585
---
---
32000
32346
7425
5411
7586
---
2928
6845
5886
7658
---
12311
1 Repair Kit contains items 5, 6, and 7.
PUMP & MOTOR OPTIONS*
*Note: These are the most frequently used pump and motor
combinations. If you have other needs, our sales reps can
recommend a pump and motor for your application.
DIMENSIONS
Pump No.
Motor
830B-Y25
3 HP, 3450 RPM, 115/230v, Single Phase, ODP
7540
830B-Y63
3 HP, 3450 RPM, 220/440v, Three Phase, ODP
7543
830B-Y64
3 HP, 3450 RPM, 220/440v, Three Phase, TEFC
8182
*
Part #
*”L” Dimension for Single phase motors is 18 1/2”;
for Three phase motors, it is 17 1/2”
NUMBERING
830
Basic Pump No.
first 3 digits
B
Y25
Motor Code
No. last three
digits
The letter B refers
to the impeller size
INSTRUCTIONS FOR ASSEMBLING PUMP TO MOTOR
The following instructions apply in cases where a customer
chooses to purchase the pump only and supplies his/her own motor
for close coupled mounting. The motor must have a NEMA C-Flange,
5/8” diameter straight shaft with 3/16” key, 3450 RPM speed and the
horsepower must agree with the pump size as follows:
Pump No. 830, HP
Assemble pump to motor step by step as follows:
1) Slide pre-assembled pump with hollow shaft over motor shaft.
Insert Key 12.
2) Apply an axial push force against screw head in impeller eye (to
overcome seal spring tension) while tightening set screws in shaft collars 13 and 14. SEE DIAGRAM.
3) Bolt pump to motor flange with four hex. head cap screws 8.
3/06
Specifications are subject to change without notice. All motor dimensions are subject to variations among motor manufacturers.
www.oberdorfer-pumps.com
PHONE (800) 448-1668; (315) 437-0361
FAX (315) 463-9561
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