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Auger Feed Screw Hopper Pump
Auger Feed Screw Hopper Pump

Auger Feed Screw Hopper Pump

Our ATEX-rated Auger Feed Screw Hopper Pump is a type of Progressive Cavity Pumps with hopper and auger feed screw are specifically designed to pump highly viscous and non-flowing substances with substantial solids content. Featuring a rectangular hopper design with an extended auger feed screw to the hydraulics, these pumps are customisable in length based on application requirements. Equipped with a special joint-protection device integrated into the end of the auger feed screw, these pumps are ideal for pumping substances with poor flowability, handling up to 35% dry substance with high viscosity without forming bridges or blocks.

  • Sewage Sludge
  • Water Treatment
  • Industrial Sludge
  • Detergents & Chemicals
  • Papermaking Products
  • Agriculture
  • Petrochemical By-Products
  • Maritime
Overview

We have 2 models available for this pump, the DHS and JHS, each offering the following benefits:

  • DHS: Drive directly coupled to the pump via a flange, providing a cost-effective and compact solution. Hydraulic stresses are absorbed by the drive itself. Each drive undergoes rigorous duration tests with heavy loads
  • JHS: Drive connected to the shaft via a coupling joint, offering optimal performance and durability. Bearings in the housing absorb all stresses generated by the pump. The modular bearing housing can be installed after a pump with the DHS model block housing
Features & Benefits
  • Compliance: CE-compliant and ATEX-rated for use in hazardous environments
  • Self-Priming: The hydraulic parts of these Progressive Cavity Pumps enable excellent self-priming (up to 7m)
  • Patented Pin Joint: The pin-type joint, a core component, offers enhanced durability and reduced maintenance costs. Its unique design allows for the subdivision of axial loads and torque
  • Customisable Length: The rectangular hopper design with an adjustable auger feed screw allows customisation based on specific application requirements
  • Solids Handling: These pumps ensure efficient pumping of highly viscous and non-flowing substances, including those with high solids content
  • Drives: Optimal drive configurations across DHS & JHS models (flange or coupling joint)
  • Materials: Casing, sealing shaft, rotor, and stator components are available in a variety of materials, including Stainless Steel AISI 316L, 304, Duplex and Super Duplex, ensuring compatibility with a range of different substances
  • Low Pulsating Flows: Tensional stress and pulsating flows are minimised, reducing the centrifugal effect. Low operating speed and axial development contribute to stable performance
  • Shaft Sealing: Various sealing systems, including mechanical seals, single and double cartridge seals, and gland packing seals, cater to specific usage and application conditions
  • Modularity: These pumps offer modularity in hydraulic parts, casing, seals, base plates, housing, and drive shafts. Each component can be customised without altering the unit’s structure, allowing for adaptability to various applications
  • Maintenance: These pumps are designed for simple maintenance, requiring minimal component replacement. Joint bushes allow for the replacement of worn parts without changing shafts and rotors
Specifications
Max Capacity 45m³/hr
Max Pressure 240m
Max Temperature -40°C up to 150°C
Casing Material S275JR, AISI 304, AISI 316
Sealing Shaft Material  AISI 420, AISI 304, AISI 316, F51 (Duplex), F55 (Super Duplex)
Rotor Material AISI 420, AISI 304, AISI 316, F51 (Duplex), F55 (Super Duplex)
Stator Material NBR, food-grade NBR, white NBR food grade, EPDM, EPDM food-grade, white EPDM food grade, FPM, FPM food grade, HNBR, HNBR food grade
Variations

Base Plates: Standard Base, Base with anti-vibration housing (feet spacer), Base with risers, Skid with lifting devices, industrial trolley, hygienic trolley for food/wine

Connections: Flange UNI 2278 PN16 for pumps at 1 and 2 stages, Flange UNI 2284 or 6084 PN40 for inlet unions for pumps at 4 stages, Flange UNI 2285 PN64 for inlet unions for pumps at 8 stages, Threaded connection GAS BSP

Sealing Systems: Gland seal with flushing B02 (flushed according to API PLAN 51, 52, 55), Single mechanical seal G0K9 (API PLAN 2 or flushed according to API PLAN 11, 32), Single mechanical seal with Quench Q0K9 (flushed according to API PLAN 51, 52, 55), Back-to-back double mechanical seal D0K9 (flushed according to API PLAN 53A, 54), Tandem double mechanical seal K0K9 (flushed according to API PLAN 52, 53A, 55), Single or double cartridge seals also in API 682 version category 1

Optional for Transmission Shaft: Protector joint

Protection & Control Accessories: Temperature probe for dry running protection (standard in ATEX variant), flow switch, pressure switch, flanged overpressure valve, hygienic overpressure valve. Control panel, control panel with inverter, drive with integrated inverter. Stator heating jacket, heating jacket for the hopper, stainless steel stator cover, CIP connection, outlet eccentric pipe, separate entrance, tangential flanged connection or with threaded connection, barrel flushing, coupling flange, hermetic coupling flange, carter to protect motorisation