United Pumps range of VCMS and VMS (Volute Case) & VCD (Diffuser Case) canned pumps with single stage or multi-stages according to head requirements.
(API pump types; VS1, VS2, VS3 and VS6 and VS7 – Vertically Suspended)

They are typically used in very low NPSHA applications and in cases where space on site is limited. Reliability is assured by using proper modern composite materials for shaft bushings.
They can also be used as sump pumps without the suction can.

Open well or sump applications;
VS1; Diffuser casings
VS2: Volute casings
VS3; Diffuser Style (high Flow)

Radially split casings and column joints with confined gaskets
Thrust can be taken by the driver or a separate bearing housing
Superior reliability compared to VS4 pumps
Through column discharge
Symmetrical column with discharge in the pump head
Available with composite bearing materials
Available with a gasketed footplate for installation in pressure vessel

Vertical Canned pumps, purpose designed to API 610
VS6; Diffuser casings
VS7; Volute casings
Low (or zero) NPSH service
Volatile liquids
Liquid gas services
Flare knock out service
High suction pressures
Thrust can be taken by the driver or a separate bearing housing

• Temperatures to 425 dg C (800 dg F)
• Case & Impeller Wear Rings
• Double Volute Casing
• Hydraulically Balanced

• Tandem or Double Seals
• Nozzle Rating/Facing
• External Thrust Bearing
• Custom Hydraulics
• Special Materials


Note; United Pumps do not believe that VS4 and VS5 style pumps are sufficiently robust for API 610 reliability and service lift compliance. VS5 type can be custom engineered.

Enquire about this product; Contact Us

VCD-VSP-VCMS 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