CONTRUCTION OF THE PUMP

Generally constructions of the pumps divided into 6 categories :

1. Centrifugal Pumps

Based to overhung impeller type centrifugal pump divided :

• Close Coupled Single Stage-end suction.
• Close Coupled Single stage-diffuser style- end suction- submersible.
• Close Coupled Single Stage-submersible
• Close Coupled Single Stage - In line.
• Separately Coupled Single stage-In Line-Flexible Coupling.
• Separately Coupled Single stage-In Line-Rigid Coupling.
• Separately Coupled Single stage-Frame Mounted-Lined Pump.
• Separately Coupled Single stage-Frame Mounted.
• Separately Coupled Single stage-Center Line Support.
• Separately Coupled Single stage-Wet Pit Volute.
• Separately Coupled Single stage-Axial Flow Horizontal.
• Separately Coupled Single stage-Frame Mounted-Mixed Flow.
• Separately Coupled Single stage-Mixed Flow.
• Separately Coupled Single stage-Self priming.

• Separately Coupled Multi stage-Axial Horizontal Split Case.
• Separately Coupled Multi stage-Axial Vertical Split Case.
• Separately Coupled Multi stage-Axial Horizontal/Vertical Split Case Double Casing.
• Side Channel Single Stage.
• Peripheral Single Stage.
• Impeller Between bearing-two stage.

2. Vertical Pumps

• Deep well Pumps.
• Vertical, Multistage Submersible Pumps
• Vertical Single or Multistage barrel or can Pumps.
• Vertical Single or Multistage short setting Open Line Shaft.
• Mixed Flow Vertical - Open Line Shaft.
• Vertical, Axial Flow Impeller (Propeller) Type (enclosed Line Shaft Below Floor Discharge Configuration.

3. Rotary Pumps

• Sliding Vane Pumps.
• External Vane Pumps.
• Axial Piston Pumps.
• Flexible Tube Pumps / Peristaltic Pumps.
• Flexible Vane Pump.
• Flexible Linear Pump.
• Single Lobe Pump.
• Three Lobe pump.
• External gear Pump.
• Internal gear Pump (with crescent)
• Internal gear Pump (without crescent).
• Circumferential Piston Pump.
• Single Screw pump/Progressive Cavity Pump/Eccentric Pump.
• Screw and Wheel Pump.
• Two Screw Pump/Double Screw Pump.
• Three Screw pump/Triple Screw Pump.

4. Sealles Centrifugal Pumps

• Canned Motor Pumps.

1. Close Coupled end Suction Overhung Impeller.
2. Close Coupled, Vertical In line.
3. Motor and Pump Separated by thermal Barrel.
4. Vertical Submerged.

• Magnetic Drive Pumps.

1. Separately Coupled (Close or Semi-Open Impeller).
   
2. Close Coupled (Close or Semi-Open Impeller).
3. Vertical Submerged (Close or Semi-Open Impeller).
   

5. Reciprocating Power Pumps

• Horizontal Single stage -Acting Plunger Power Pump.
• Vertical Single Stage -Acting Plunger Power Pump.
• Horizontal Double Stages -Acting Plunger Power Pump.
• Horizontal Double Stages-Acting Piston Power Pump.
• Horizontal Triplex Plunger Pump, on Base, Belt Drive.
• Vertical Triplex Plunger Pump, on base. gear reduction.
• Liquid End, Horizontal Side Port Piston Pump.
• Liquid End, Horizontal Valve Plate Piston Pump.
• Power End, Horizontal Plunger Power pump.
• Power End, Vertical Plunger Power pump.
• Power End, Horizontal Duplex power pump With Integral gear.

Type of Piston :

• Cup
• Slush
• Bull and Snap
• Individual Ring

6. Direct Acting (Steam) Pumps

• Horizontal Simplex Direct Acting (Steam) Pump.

• Drive (Steam) End :

1. Side Inlet (Steam) Port.
2.Side Exhaust Port.

• Liquid End :

1. End Suction.
2.Top Discharge.

• Horizontal Duplex Direct Acting (Steam) Pump.
• Double Acting Plunger type Liquid end.
• Side Valve Port Type Liquid End (End View, Duplex Pump).
• Drive (Steam) End-Horizontal Duplex Pump.
• Inside Fixed lost-Motion Valve Gear.
• Inside Adjustable lost- Motion Valve Gear.
• Outside Adjustable Lost-Motion valve Gear.