background image

Obtain MSDS data sheets for all liquids (from the manufacturers of

those liquids) being used with the pump, and heed all cautions.

Always wear the appropriate protective apparel when working on
or around the pumping equipment. Safety glasses with side shields,
heavy work gloves (use insulated work gloves when handling hot
items), steel-toed shoes, hard hat, and any other protective gear as
needed for protection. One example of other gear would be
breathing apparatus when working near toxic materials. Use lifting
devices, manufactured expressly for the purpose of lifting, to move
the pumping machinery. Do not attempt to lift the assembly or its
components manually. Use only devices with lifting capabilities in
excess of the weight of the unit being lifted. Inspect straps, chains,
hooks, etc. for damage and lifting capability before use.
Personal injury, death, and/or equipment damage could occur if
good lifting practices are not used.

APPLICATION AND REAPPLICATION

At the time of installation, the equipment received should have
already been selected for the service required. You must read the
paperwork for the installation and check the serial number of the
pump to assure that you are installing the correct pump into the ser-
vice for which it was selected.
Many pumps look identical from the outside but can be made of dif-
ferent materials and/or be constructed differently inside. Personal
injury, death, equipment damage, product (pumpage) damage,
and/or product loss could occur if the incorrect pump is installed.
Do not transfer an existing pump to any other service conditions
until you have thoroughly reviewed the pump construction, materi-
als, sizing, sealing, pressure containing capability, head/capacity
capability, and temperature capability with respect to the required
service. Consult your Dean Pump sales engineer with all the service
requirements and a full description of the existing pump (including
the serial number), seal, and sub-systems so that we can assist you
in a successful reapplication. 

PUMP FOUNDATION

The pump foundation provides rigid support to the baseplate and
maintains the exact alignment of the pumping unit. Baseplates are
designed to rigidly support the pump and driver without vibration
or distortion only when they are properly set, leveled, and secured
to the foundation.
The purchaser may elect to mount the pump without grouting the
baseplate. In any case the baseplate must be fully supported by the
customer’s mounting means to prevent vibration and distortion. 

BASEPLATE MOUNTING AND ALIGNMENT

The sequence of mounting which must be observed for proper base-
plate and pump mounting is:

1) Place baseplate, with pump and driver mounted thereon, on

the pump foundation.

2) Use wedges under the baseplate edges, at each foundation

bolt, to properly support and level the unit. Check this with
a spirit level. Pull down the baseplate mounting bolt nuts
tightly and recheck for level. Correct if necessary.

3) Align the driver to the pump. See 

“Pump and Driver

Alignment’’ 

on page 5.

4) Grout the baseplate. 

Do not grout the baseplate to the foun-

dation until the pump and driver are correctly aligned.

Channel type baseplates are made with open ends to allow
easy grouting and do not require grouting holes in the base-
plate. Fabricated structural steel baseplates are provided
with grouting holes. Fill the entire void under the baseplate
with grout and firmly embed the baseplate edges.

5) Install “new” gaskets, of the correct material for the service,

and the correct size per ASME B16.20, or ASME B16.21
at the suction and the discharge flanges of the pump. Use
only new gaskets.
Connect the suction and discharge piping without forcing
the piping into position. See 

“Suction and Discharge Piping”

on page 5. The pipe flanges must line up with the pump
flanges “freely”.
Install a “new” bolt, of the correct size per ASME/ANSI
B16.5, in every bolt hole. Tighten all bolts evenly. Use only
new uncorroded fasteners.

WARNING:
Strain caused by “forcing”, improper flange bolting, and/or mis-
alignment may cause failure of the pumping unit, flanges, piping
and/or fluid (pumpage) release which could cause personal injury,
death, and/or damage to this and/or other equipment.
WARNING:
Make sure that all piping is installed into its correct connection.
Installation of a pipe into an incorrect location could result in an
explosion and personal injury or death as well as damage to this
and/or other equipment.

Install pressure relief valves in any cavities that could be subjected

to pressures in excess of the allowable working pressure. Explosion,
personal injury, death, and/or damage to this and/or other equip-
ment may occur if pressure exceeds allowable.

6) Recheck the alignment between the driver (motor, turbine, or

engine) and pump shafts. Installation of piping may have
forced the pump out of alignment. If so, correct the piping to
remove the distorting load, and realign the pump and driver..

7) The pump and driver alignment must again be checked at

the operating temperature and alignment corrected under
the hot condition.

8) After about two weeks of normal pump operation the pump

and driver alignment should again be checked under the hot
condition. If alignment is still correct, the driver feet may be
doweled to the baseplate. If the alignment has changed,
realign the unit and recheck after two weeks.

INSTALLATION

T

YPICAL

F

OUNDATION

L

AYOUT

4

Summary of Contents for RWA 2096

Page 1: ...S E R I E S R WA Fan Cooled Hot Water Pumps Instruction Manual MC 1 4 44 DO NOT INSTALL OPERATE OR SERVICE THIS PUMP BEFORE READING THE ENTIRE MANUAL...

Page 2: ...n 4 Baseplate Mounting and Alignment 4 Suction and Discharge Piping 5 Pump and Driver Alignment 5 Allowable Piping Loads 7 Small Piping Connections 7 Pump Lubrication 8 Bearings 8 Mechanical Seal 8 St...

Page 3: ...pumped Evaluation of compatibility must include consideration of the temperature at which the system will later operate Fill the pump until the liquid flows from the pipe tee from which the vapor elim...

Page 4: ...125 Ra 300 Raised Face 125 Ra 260 PSIG 260 PSIG 100 40 25 250 125 75 7308 BG Angular Contact Pair 7311 BG Angular Contact Pair 213 16 31 8 2 37 8 45 16 21 2 117 16 25 16 11 8 19 16 11 8 145 8 31 4 15...

Page 5: ...observed for proper base plate and pump mounting is 1 Place baseplate with pump and driver mounted thereon on the pump foundation 2 Use wedges under the baseplate edges at each foundation bolt to pro...

Page 6: ...urbine manufacturer s recommendations Final alignment must always be checked and corrected at the operating temperatures of the pump and driver Misalignment of the two shafts is of two kinds The first...

Page 7: ...to within 0 002 T I R Angular and offset alignment is adjusted by moving the motor side ways and up and down to bring the motor into exact alignment with the bolted down pump The motor is moved up and...

Page 8: ...X6X81 2 310 785 320 600 RWA4166 11 2 X3X10 240 760 310 600 RWA4166 2X3X10 275 760 310 600 RWA4166 3X4X10 305 830 340 600 RWA4166 4X6 X10 2 345 950 340 600 RWA4206 4X6 X10 1 460 2300 1850 800 MAXIMUM M...

Page 9: ...llowed by federal or local regulations or may not be acceptable for whatever other reasons Consult your plant or corporate safety engineer for instruction on possible required procedures for the speci...

Page 10: ...ing parts when the pump is started Bolt the coupling guard securely to the baseplate checking to assure that it is not contacting any parts that will rotate when the pump is started OPERATING WARNING...

Page 11: ...Break the coupling by removing the coupling spacer and bump the motor starting button to check motor rotation Operating the pump in reverse rotation may cause extensive damage If driver rotation is c...

Page 12: ...nd Cover 29 Pump Shaft 31 Thrust Bearing Lock Nut Only on RWA4166 RWA4206 31A Thrust Bearing Lock Washer Only on RWA4166 RWA4206 56 Casing Foot Only on RWA4166 RWA4206 75 Snap Ring Only on RWA4166 75A...

Page 13: ...11A SECTIONAL ASSEMBLY DRAWING 01964 RWA4166 SECTIONAL ASSEMBLY DRAWING 01967 RWA4206...

Page 14: ...will be dependent upon the pressure in the system when the pump was stopped the quality type and condition of the isolation valves the thermal expansion values of the fluid and the pump material and...

Page 15: ...ry and or damage to equipment may occur a Remove the impeller nuts 12 of the RWA2096 or the impeller bolt 12 of the RWA4166 or the RWA4206 all have right hand threads while holding the pump shaft 29 a...

Page 16: ...nufacture parts or modify Dean Pump parts in any manner Death personal injury and or damage to equipment may occur Replace all gaskets seals bearings and lubricants Replace all parts that have worn co...

Page 17: ...t 95A into the mechanical seal gland 13 If the pump is a RWA2096 or a RWA4166 be sure that there is an O ring installed in the groove in the outside diameter of the mechanical seal stationary seat 95A...

Page 18: ...eter where the lip seal 76A contacts Apply any remaining grease from packing the thrust bearings 25A around the exposed face of the bearings 25A Place the end cover 28 carefully over the pump shaft 29...

Page 19: ...If the pump has a casing ring 6A press it into the casing 5 z Carefully insert the bearing housing 26 assembly into the casing with a new casing gasket 77 Assure that the bearing housing 26 assembly...

Page 20: ...n Pump Serial Number Plant Property Number Service Location Capacity T D H Imp Dia Temp RPM Spare Parts in Plant Stock Room Interchangeable with Dean Serial Numbers CUSTOMER S PLANT MAINTENANCE RECORD...

Page 21: ...ropriate protective apparel when working on or around the pumping equipment Safety glass es with side shields heavy work gloves use insulated work gloves when handling hot items steel toed shoes hard...

Reviews: