Download - PUMP SELECTION - TumCivil.com
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PUMP SELECTION
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1) Liquid to be pumped.
2) flow Rate Required.
3) Total Dynamic Head.
4) Net Positive Suction Head Available.
5) Operating Temperature.
6) Operating Pressure.
7) Specific Gravity.
8) Nature of Liquid.
9) Operational Experience.
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DIFFERENT TYPES OF
LIQUIDS HANDLED BY PUMPS
Hydrocarbons Petroleum Base Products
Chemicals
Acids, Alkalines or Oxidizing Agents
that are destructive to both equipment
and environment
Slurries
Mixture of Solid Particles in Liquid
Water
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ANSI PROCESS PUMPS
American National Standards Institute
ANSI Pump Rating = 300 PSIG at 150 C
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API PROCESS PUMPS
American Petroleum Institute
API Pump Rating = 750 PSIG at 260 C
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MECHANICAL SEALS
SHAFT SLEEVES
SHAFT
BEARINGS
CASE WEAR RINGS
SUCTION CHAMBERS
CASING
RECIRCULATION
SUCTION BAFFLES
BEARING HOUSING
IMPELLER
VOLUTE
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SPLIT CASE CENTRIFUGAL PUMP
������������ ����������working pressure limitation
working pressure = static pressure + TDH
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PUMP SEALS
PACKING
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Stuffing Box
Gland
Packing
Lantern Ring
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MECHANICAL SEALS
Mechanical Seals 1���)3�������������
�+�������-�����/��1+��+-�� +����� (Lapped
Faces) ���� �+���+��� ����������-���/��1+�����
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Gland ����'���+�/��1+����� ������1+� ', +��
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MECHANICAL SEALS
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���1+� (primary seal)
2) ���/��/��1+� ������1+���� &�� (secondary
seal)
3) ���/��/��1+����/���1+���� gland
4) ���/� gland ��� stuffing box
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MECHANICAL SEALS
)4''��1+��������&�'�(� �������*+���� ������ ��� pressure
temperature
rotational speed
corrosiveness
abrasiveness
viscosity
toxicity
operational frequency
SEAL MATERIAL OF CONSTRUCTION
MATING RING : CERAMIC
PRIMARY SEALING RING : CARBON
ELASTOMER BELLOWS : BUNA-N
SPRING : ST STEEL
COLLAR, RETAINER : ST STEEL
PRIMARY
SEALING RING
MATING
RING
SPRING
COLLAR
RETAINER
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SEAL MATERIAL OF CONSTRUCTION
VARIOUS SIZES OF SEALS
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API PLANS FOR VARIOUS
CIRCULATION SYSTEMS
API PLANS FOR VARIOUS
CIRCULATION SYSTEMS
Plan 21- Cooled
Discharge Recirculation
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API PLANS FOR VARIOUS
CIRCULATION SYSTEMS
Plan 62a - External
Quench Supply
QUESTION
PLEASE