DDHF series

The United Pumps DDHF series are multi-stage, double casing/barrel,(API pump type; BB 5) double casing volute, opposed impeller arrangement (for axial hydraulic balance, eliminating high thrust loads on the bearings), single or double entry first-stage impeller.

The axially split inner cartridge design also allows replacement of the pumping assembly in situ. Due to the extra safety double-casing pumps provide, they are the ultimate option in low SG and/or high temperature applications where pressure is extremely high.

For Crude Charge, Boiler-feed, Water Injection and any service requiring High Pressure Heavy Duty Multi Stage Pumps.
Designed with CAE for API Nozzle Loads as evidenced by Heavy Case Feet and base pedestals

• Temperatures to 450 dg C
• Pressures to 425 barg – Higher Ratings Optional
• Opposed Impellers for Axial Thrust Balance
• Renewable case and Impeller Wear Rings
• Element Balanced as a Complete Assembly

• Tandem or Double Seals
• Tilting Pad Thrust Bearings
• Sleeve or Antifriction Radial Bearings
• Higher Nozzle Ratings & Special Facings
• Bearing Cooling
• Double Suction First Stage
• Force Feed Lubrication Console
• Oil Mist Lubrication
• Composite Material Wear Rings & Bushes
• Custom Hydraulics
• High Temperature/Pressure Ratings
• Special Materials

Enquire about this product here: Contact Us

   United Pumps_DDHF series brochure Dr2

DDHF series pump images;


United Pumps Australia control manufacture with a detailed Quality Management System, accredited by Lloyd’s Register Quality Assurance Limited to AS/NZS ISO 9001


31 Western Avenue, Sunshine, Victoria, 3020, Australia
Postal: PO Box 348, Sunshine, Victoria 3020, Australia
Deliveries: 11 Patterson Ave, Sunshine, Vic, 3020, Australia
Phone: 03 9464 9500   Intl: +61 3 9464 9500
Location time: AEST; GMT +10.  AEDT; GMT  +11

Registered Name: U.C.P AUSTRALIA  Pty Ltd
Commonly Known As: U P A
ABN: 37 006 317 979

Safety Health & Environment: ISN Supplier ID 400-166-286