Double Shaft Hopper Pump

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

DHB:

• Direct drive coupling via flange
• Cost-effective and compact design
• Forces generated by hydraulic components are supported by the drive itself
• Durability tested under heavy loads

JHB:

• Drive connected to the shaft inlet via a flexible coupling
• Superior performance and durability
• Bearings absorb stress in the housing, ensuring high resistance against loads
• Modular bearing housing design for flexibility in installation

• Compliance: CE-compliant and ATEX-rated for use in hazardous environments
• Self-Priming: The hydraulic parts of these Hopper Pumps enable excellent self-priming (up to 7m)
• Pin Joint: The pin-type joint, the ‘heart’ of the single screw pump, is an ideal solution that allows for the subdivision of axial loads and torque, enabling cost-effective replacement of worn parts
• Materials: The parts in contact with the product can be manufactured in various materials, from Cast Iron to Stainless Steel (AISI 316L and 304). The rotating parts are manufactured in Stainless Steel AISI 420, except for the auger feed screw, which can be AISI 304/316 on request
• Low Pulsating Flow: Tensional stress and pulsating flow are minimised owing to the low operating speed and the axial development of the pump. The centrifugal effect is reduced to a minimum, ensuring smooth and consistent flow
• Shaft Sealing: Various sealing systems are available, including single-acting mechanical seal, double-acting mechanical seal back-to-back or tandem, and gland packing with or without flush. Seals are interchangeable on the standard pump
• Base Plates: Base plates with considerable thickness are available in Carbon Steel or Stainless Steel
• Joint Protection: Features a joint rubber sleeve and clamp protected by a unique device integrated into the end of the auger feed screw. This ensures the integrity of the joint, especially when pumping abrasive substances or those with solid particles
• 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

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

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, flange ASME B16.5 #150 for pumps at stage 1 and 2, flange ASME b16.5 #300 for outlet unions for pumps at stage 4 and 8, 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 Coupling Rod: Joint protection, coupling rod with feed screw, ribbon auger with feed screw, cardan joint

Protection & Control Accessories: Temperature probe for dry running protection (standard in ATEX variant), flow switch, pressure switch, flanged overpressure valve, hygienic overpressure valve. Stator heating jacket, stainless steel stator cover, tangential flanged connection or with threaded connection, grinder, quench pot flushing, stainless steel lantern, hermetic lantern, carter to protect the motorisation