The Archimedes type screw pump is one of the simplest, yet most efficient and reliable, methods of moving large volumes of water and slurry over short distances. Screw pumps are very often used for heavy duty applications, sometimes pumping over 1,000 litres a second, making it vital that an expert team is on hand to provide essential service and maintenance.

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Archimedes Type Screw Pumps

The Archimedes type screw pump is one of the simplest, yet most efficient and reliable, methods of moving large volumes of water and slurry over short distances. Screw pumps are very often used for heavy duty applications, sometimes pumping over 1,000 litres a second, making it vital that an expert team is on hand to provide essential service and maintenance.

Deritend offers a complete maintenance and repair service package for Archimedes type screw pumps including round-the-clock emergency breakdown cover. Our previous experience includes the supply and maintenance of Archimedes type screw pumps for water companies throughout the UK, including the installation of four of the largest screw type pumps in the UK for Severn Trent Water.

Experience

Deritend offers a complete maintenance and repair service package for Archimedes type screw pumps including round-the-clock emergency breakdown cover. Our previous experience includes the supply and maintenance of Archimedes type screw pumps for water companies throughout the UK, including the installation of four of the largest screw type pumps in the UK for Severn Trent Water.

Services

New Pump Supply

Deritend is one of the UK’s leading suppliers of screw pumps; its services include design, manufacture, supply, mounting and maintenance of many types of Archimedean screw pump configurations.

Applications include:

Waste water treatment plants Effluent pumping stations Intermediate pumping stations Return sludge pumping stations Irrigation projects Drainage projects Industrial applications Storm water applications

Deritend screw pumps are available in either steel or stainless steel; they can be mounted in a concrete or steel trough or delivered completely prefabricated. All screw pumps are designed by means of a computer aided calculation programs.

Screw pump features:

Open, simple and robust construction High efficiency Low maintenance Low operational costs Highly reliable Long lifetime Virtually no wear (no spare units required) Automatic adjustment of pump capacity as a function of the incoming flow Cavitation free Operates in a wide range, with a capacity from 10 to 11.500 l/s and lift from 0 to 25 m

Installation Services

Deritend has a large number of field based installation & service engineers with fully equipped vehicles that can remove, repair and install all configurations of screw pumps. Deritend’s experience in this field is backed through its supply distribution agreement with screw pump manufacturer Landustrie in the Netherlands taking on projects from large to small.

Services include:

Screw pump efficiency reporting & upgrades Removal & installation Screeding Robot demolition of concrete troughs Installation of steel troughs and liners Motor & gearbox upgrade and refurbishment Confined space working Scaffolding and individual fall arrest systems Pump refurbishment

Screw Pump Bearings

Deritend can supply both upper and lower bearings from Stock in the UK to any location with lead times to suit our customers demands. Our in house machining facilities are able to convert our stock bearings to suit any screw pump type through our UK service centres.

Upper Bearings, foot and wall mounted, can be completely refurbished and can be specified to suit individual applications – the wall mounted version gives excellent odour-tight separation between the screw pump channel and drive compartment and is a must for dirty water applications.

Lower bearings are supplied in four different types:

Conventional grease lubricated Grease lubricated heavy duty Medium lubricated Eco-friendly lower bearing.

Features of the Eco-friendly lower bearing:

Eco-friendly lubricated to lifetime of the bearing No grease pump and grease lines required, easier to install Exchangeable with existing bearings Completely enclosed unit Maintenance & grease free Lower investment costs Corrosion-free cast iron housing 3-dimensional self-aligning High-performance seals Read more at www.deritend.co.uk

 

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