Triple Screw Pump by Parekh Engineering Company

Casing: Cast Iron, Cast Steel, Cast Stainless Steel
Liner: Cast Iron, Cast Stainless Steel
Screws: Alloy Steel, Nitride Steel & Stainless Steel.

• High reliability
• Long Service Life
• Negligible Maintenance
• High efficiency
• Self Priming
• Smooth Pulsation Free Flow
• Low Noise and Vibration
• High Speed Capability
• Insensitive to viscosities
• High-Pressure Capability
• Fast, Easy replacement of Parts.
• Mounting configurations to fit any spaces limitation :-Horizontal, Vertical, Close-Coupled ,Sump
• In – Line Construction enables simplified piping arrangement.
• ANSI or DIN flanges

While in operation, the screws are in hydrodynamics balance on film lubrication and do not require any additional bearings. The one ball bearing often used is only for axial positioning of a rotor and safer operation of mechanical seals. Small rotor dimensions enable the pump to be operated at high speeds directly coupled 3000 or 3600 RPM motors or other prime movers. Such unique design and features had demonstrated excellent reliability with pumps in operation continuously on- stop for decades together without replacement of any components or maintenance on clean fluids.

• Maximum Reliability of System to Increase Revenue
• Pumps deliver smooth flows with minimum pulsations
• Hydraulically balanced screws
• Lower Maintenance Costs by up to 50 %
• Pumping elements contained in one cartridge assembly
• Fast, easy replacement of parts
• Reduced overhaul turn around time
• No timing gears required and fewer wearable parts
• One or no bearings required and fewer wearable parts
• Versatility to meet Customer Specification
• Custom design fabricated pump and per API standards
• A choice of shaft seals for every application
• Mounting configurations to fit in any space limitations: Horizontal, Vertical, Close Coupled, Sump
• In – line construction enables simplified piping arrangements
• ANSI or Din Flanges
• One pump size designed to offer flexibility in flow

Capacity : From 1 to 400 M³/Hr
Pressure : Up to 64 Kg/cm²
Viscosity : 1-1, 00,000 Centi Stokes
Temperature: Up to 300 ^.C

User Industries

• Cement Industry
• Power Stations
• Petro-Chemical Refineries
• Oil Depots
• Ship Building Industry
• Rayon, Staple fibres
• Steel Industries
• Fertilizer Industries
• Paper Mills
• Food Processing Industries Breweries
• Bitumen and Asphalt Industries

These Pumps are designed for handling clear viscous liquids and are suitable for different pressures up to 70 bars. The pumping elements comprise of a power screw and two idler screws, running in a close fitting insert. The idler screws serve to maintain the closed chambers that pump the liquid. Each screw is provided with a drum so that axial forces are hydraulically balanced. The shaft seal chamber is connected internally to the inlet and the seal is therefore always subjected to the inlet and the seal is therefore always subject to inlet pressure only. The inserts screws and balancing bushes together with bearing and seals for a replaceable cartridge that is located inside a casing. The pumps can be supplied in a variety of materials of construction and for various mounting arrangements.