•
Alignment procedures must be followed to prevent unintended contact of rotating parts. Follow cou-
pling manufacturer’s installation and operation procedures.
•
All equipment being installed must be properly grounded to prevent unexpected static electric dis-
charge.
•
When installing in a potentially explosive environment, ensure that the motor and accessories are
properly certified.
•
The impeller clearance setting procedure must be followed. Improperly setting the clearance or not
following any of the proper procedures can result in sparks, unexpected heat generation and equip-
ment damage.
•
The impeller and wear ring clearance setting procedures must be followed. Improperly setting the
clearance or not following any of the proper procedures can result in sparks, unexpected heat gen-
eration and equipment damage.
•
Service temperature in an ATEX classified environment is limited to the area classification specified
on the ATEX tag affixed to the pump. See nameplate section and pumpage temperature table.
•
The coupling used in an ATEX classified environment must be properly certified.
•
The coupling guard used in an ATEX classified environment must be constructed from a non-spark-
ing material.
•
Bearings must be lubricated properly in order to prevent excess heat generation, sparks and pre-
mature failure.
•
The mechanical seal used in an ATEX classified environment must be properly certified.
•
The mechanical seal must have an appropriate seal flush system. Failure to do so will result in ex-
cess heat generation and seal failure.
•
Packed Stuffing Boxes are not allowed in an ATEX classified environment.
•
Dynamic seals are not allowed in an ATEX classified environment.
•
Pumps must be fully primed at all times during operation.
•
The preventive maintenance section must be adhered to in order to keep the applicable ATEX clas-
sification of the equipment. Failure to follow these procedures will void the ATEX classification for
the equipment. Bearing replacement intervals are given in the specific pump model IOM.
•
Inspection intervals should be shortened appropriately if the pumpage is abrasive and/or corrosive,
or if the environment is classified as potentially explosive.
•
Throughout this section on bearing lubrication, different pumpage temperatures are listed. If the
equipment is ATEX certified and the listed temperature exceeds the applicable value shown in Ta-
ble 1 under SAFETY, then that temperature is not valid. Should this situation occur, please consult
with your ITT/Goulds representative.
•
Cooling systems, such as those for bearing lubrication, mechanical seal systems, etc., where pro-
vided, must be operating properly to prevent excess heat generation, sparks and premature failure.
•
Rotate shaft by hand to ensure it rotates smoothly and there is no rubbing which could lead to ex-
cess heat generation, sparks and premature failure.
•
Flange loads from the piping system, including those from thermal expansion of the piping, must
not exceed the limits of the pump. Casing deformation can result in contact with rotating parts
which can result in excess heat generation, sparks and premature failure.
•
Ensure that pump and systems are free of foreign objects before operating and that objects cannot
enter the pump during operation. Foreign objects in the pumpage or piping system can cause
blockage of flow which can result in excess heat generation, sparks and premature failure.
•
Do not insulate or allow the bearing housings to accumulate a dust layer as this can result in ex-
cess heat generation, sparks and premature failure.
•
Check for magnetism on the pump shaft and demagnetize the shaft if there is any detectable mag-
netism. Magnetism will attract ferritic objects to the impeller, seals and bearings which can result in
excess heat generation, sparks and premature failure.
1.6 Safety regulations for Ex-approved products in potentially explosive atmospheres
10
Model 3410 Installation, Operation, and Maintenance Manual
Содержание GOULDS PUMPS 3410
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