VWS Westgarth Office Contact

Orbital House
3 Redwood Crescent
East Kilbride
G74 5PR

+44 (0)1355 588 000
Fax: +44 (0)1355 588 001


Veolia Water Oil & Gas Angola Contact:

Viana Park
Pavilhão nº1 Quarteirão 9
Estrada do Calumbo
Pólo Industrial de Viana
República de Angola

Tel: +244 940 120 949
Tel: +244 949 229 399


Press releases



Cutaway vessel showing SandLiners

VWS Westgarth, the oil & gas industry water treatment specialist of Veolia Water Solutions & Technologies has recently launched the SandLiner desanding hydrocyclone for produced water treatment.

Many years of produced water system design, build and service experience have enabled us to identify and improve the key factors behind desanding hydrocyclone performance. This knowledge has been applied to the SandLiner design, resulting in class leading capacity, efficiency and longevity.

Our understanding of the operation and maintenance issues behind hydrocyclone technology has led to the inclusion of unique design features which make the VWS SandLiner suitable for temperatures of up to 140°C with standard seals, and any pressure class up to #2500 or API 10,000.

Cutaway vessel showing SandLiners

VWS offers testing, witnessed by the user, to verify the data used for application selection and performance guarantees.

The VWS SandLiner operates by introducing produced water through tangential inlets into the widest part of the conical internal cavity to create a vortex inside the liner. As the water passes through the vortex, the suspended solids are forced to the wall of the liner by centrifugal forces. The vortex flow pattern within the liner transports the separated solids along the wall to the outlet port of the liner where they flow into a catchment chamber beneath. The desanded water flows in a reverse direction, up the centre of the liner and out through the axial port at the top. Normally the sand in the catchment chamber would be intermittently discharged to a sand cleaning system while the hydrocyclones are on line, although other discharge strategies are possible.

The SandLiner complements other VWS produced water treatment technologies to enable VWS to offer the end user an integrated and optimised solution at every key process stage in the produced water treatment system.

Benefits of the SandLiner Desanding Hydrocyclone include:

  • Liner manufactured from ceramic material to resist high temperatures and erosion
  • Designed & developed specifically for oil & gas applications
  • Range of 5 liners with common external dimensions, giving a range of capacities and efficiencies to suit most process requirements
  • Simple design for mounting in pressure vessels
  • Can be operated with a continuous or potted underflow
  • Suitable for pressures up to API 10,000

The SandLiner Desanding Hydrocyclone is supported by oil & gas industry water treatment specialists located at VWS locations throughout the world, providing whole life care, wherever you operate.

E-mail us at, visit or visit us at booth 3A180 at Offshore Europe exhibition in Aberdeen (6-8 September) for more information.