Viking Pump TSM285: Classic+ Lobe Pump - Manual (Page 3)

SECTION TSM 285 ISSUE A PAGE 3 OF 36
2.0 INTRODUCTION
2.1 GENERAL
Classic+ rotary lobe pumps are manufactured by Johnson
Pump (UK) Ltd. a subsidiary of Viking Pump Inc., Cedar Falls,
USA, (a unit of the IDEX Corporation).
This manual includes all the necessary information for the
Classic+ and should be read prior to beginning installation,
operation, or maintenance.
Should you require any additional information regarding
the Classic+ contact Viking Pump or their local authorized
distributor, refer to section 2.2.
When asking for assistance please provide the pump model
and serial number. This information can be obtained from the
pump nameplate which is located on the side of the pump
gearbox cover, refer to section 2.6.
Should the nameplate be unreadable or missing, the serial
number is also stamped on either side of the casing refer to
section 2.6.
If the system or product characteristics are to be changed from
the original application for which the pump was selected, Viking
Pump or their authorized distributor should be consulted to
ensure the pump is suitable for the new application.
2.2 VIkING PUMP DISTRIbUTORS
Viking Pump distributes its products internationally via a network
of authorized distributors. Throughout this manual where
reference is made to Viking Pump, service and assistance will
also be provided by any Viking Pump authorized distributor for
Classic+.
2.3 RECEIPTS AND STORAGE
Upon receipt of the pump, immediately examine it for any signs
of visible damage. If any damage is noted, contact Viking
Pump or your Viking Pump distributor and clearly mark upon
the carriers’ paperwork that the goods have been received in a
damaged condition, with a brief description of damage.
If the pump is not required for immediate installation then it
should be stored in a clean, dry environment. It is recommended
that storage temperature should be between –10° and 40°C
(14°F and 105°F).
Further to the above, if the pump is not intended for installation
or use within 18 months or more then refer to Viking Pump,
or the Viking Pump authorized distributor for storage
recommendations.
2.4 CLEANING
The Classic+ pump series is suitable for both manual cleaning
and in-line cleaning, refer to section 3.3.2.
It is recommended that the exterior of the pump be cleaned
periodically with a non-aggressive, non-abrasive cleaning
solution.
1.1 RISk ASSESSMENT RELATING
TO THE USE Of VIkING PUMP
CLASSIC+ ROTARy LObE
PUMPS AND PUMP UNITS IN
POTENTIALLy EXPLOSIVE
ATMOSPHERES
NOTE
for a feature to be suitable for an application, the
feature must be fit for its designated purpose and also
suitable for the environment where it is to be installed.
Source
of Hazards
Potential
Hazards
Frequency
of Hazards
Recommended
Measures
Unvented
Cavities
Build up of explosive gas Very Rare
Ensure that pump is totally
filled. Consider mounting
ports vertically.
See Chapter 1.0
Casing /
Rotors /
Head
Unintended mechanical
contact
Rare
Ensure that operating
pressures are not
exceeded. Ensure that
sufficient NPSH to prevent
cavitation. See Chapter
1.0 / 3.3.1 Service Plan
Pump
External
Surfaces
Excess temperature.
Electrostatic charging
Rare
User must ensure
temperature limits. Do not
overfill gearboxes with
lubricant. Provide a ground
contact for pump. See
Chapter 1.0 / Service plan
Cover
O-Ring
Pump liquid leakage.
Build up of explosive gas
Very Rare
Check selection of
elastomers are suitable for
application. Ensure cover
retaining nuts are tight.
Service plan
Pump
Casing / Cover
Pump liquid leakage.
Build up of explosive gas
Very Rare Stainless Steel.
Corrosion Resistant
Shaft Seals
Excessive temperature.
Unintended mechanical
contact. Leakage. Build
up of explosive gas
Rare
Selection of seal system
must be suitable for
application. See Chapter
5.0. Service plan. Seals
must never run dry
Auxiliary
System for
Shaft
Sealing
Pump liquid leakage.
Build up of explosive gas
Rare
Selection of auxiliary seal
system must be suitable
for application. Seals must
never run dry
Rotation
Direction
Test
Excess Temperature Very Rare
If flushed seals are
installed, ensure that
flush is applied to seal
assemblies. Only allow
pump to run for minimum
period - just a few seconds
Closed
Valve
Condition
Excess Temperature.
Excess Pressure.
Mechanical Contact
Rare
Can cause excessive
pressure, heat and
mechanical contact.
See Chapter 1.0
Shaft Random induced current Very Rare
Provide a ground contact
for pump. See Chapter 1.0
Mechanical
Shaft
Coupling
(Torque
Protection)
Temperature from
friction. Sparks from
break up of shear pins.
Electrostatic charging
Rare
Coupling selection must
suit application.
See Chapter 1.0
Mechanical
Shaft
Coupling
(Standard)
Break up of spider.
Unintended
mechanical contact.
Electrostatic charging
Rare
Coupling selection must
suit application. Service
plan. See Chapter 1.0