http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 13.85Change: 0.07
R/$ = 10.93Change: 0.08
Au 1231.62 $/ozChange: 2.81
Pt 1250.50 $/ozChange: -2.50
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Apr 22, 2005

Vacuum pump new on SA market

Back
Port|Africa|CoAL|Compressors|Dewatering|Flow|Pumps|Stainless Steel|Water|Africa|South Africa|United Kingdom|Flow|Manufacturing|Mining|Product|Products|Services|Stainless Steel|Stainless-steel Rotating Parts|Steel|John Crane|Power|Water
Port|Africa|CoAL|Compressors|Dewatering|Flow|Pumps|Stainless Steel|Water|Africa||Flow|Manufacturing|Mining|Products|Services|Steel|Power|Water
port|africa-company|coal|compressors|dewatering|flow-company|pumps|stainless-steel-company|water-company|africa|south-africa|united-kingdom|flow-industry-term|manufacturing|mining|product|products|services|stainless-steel|stainlesssteel-rotating-parts|steel|john-crane-person|power|water
© Reuse this New on the South African market, imported from the UK, the Liquivac liquid-ring vacuum pump has the ability to pump liquids or combinations of liquids, gases, foam and fine solids and has many applications, such as pump priming, vessel emptying, ground dewatering spill recovery, removing liquids from vacuum pro- cesses and wash-down recovery to name but a few. The Liquivac has advantages of discharge heads of up to 3 bar, suction lifts to 8,5 m, air-flow priming rate of 40 m3/h and liquid flow rates of up to 35 m3/h. The units are available in configurations ranging from cast-iron body with stainless-steel rotating parts or all wetted parts in stainless steel and mechanical seals to suit many applications. John Crane mechanical seals are standard but others can be used on request.

The heart of all Liquivac pumps is a twin-start helical rotor mounted eccentrically in a cylindrical barrel. On initial installation, the pump should be primed with a suitable liquid. During start-up, surplus liquid is displaced through the discharge port plate, the remainder forms a liquid ring retained and supported by the suction and discharge port plates. The liquid ring forms a seal between the top tips of the rotor and the underside of the rotor boss. This arrangement creates a series of crescent-shaped cavities travelling from suction to delivery. Any product, such as liquids, air, foam, emulsions or vapours exposed to suction would be drawn in to these cavities and discharged through the pump.

The large clearances between the rotating and stationary parts allow the pump to handle solids of up to 2 mm in diameter.

The Liquivac liquid-ring vacuum pumps are available from Vac-Cent Services.

Vac-Cent Services was formed in 1987 with the objective of retaining the manufacturing licence for Nash liquid-ring vacuum pumps and compressors and related products, in South Africa. The main markets being serviced since 1981 still remain pulp and paper, chemicals, food, coal, mining, power and wastewater. In addition to the Nash product range, Vac-Cent Services was appointed the sole distributor locally of the Frese automatic flow-control valve range. The main markets for this valve range have been air conditioning and water distribution since 1990. New current markets include refri-geration and mining.

Always striving to offer the market the most current and up-to-date technology, the Edwards Chemical Dry Pump Agency was obtained in 1995, with its main markets being the chemical and pharmaceutical industries.
Edited by: Nicola Mawson
© Reuse this Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Pumps News
MAHLE WATER-FILTRATION SYSTEM The system is automated and is used to prime and lubricate the water feed pumps
Valve manufacturer Omsa has supplied two Mahle water-filtration systems to a local water supplier’s facilities, in Bloemfontein, in the Free State. These systems formed part of a new feed-water-supply system that was recently installed at the supplier’s facilities....
VERDERFLEX DURA 55 PUMP The Dura 55 expands the Dura range’s flow rates from less than 1 ℓ/hr to 15.3 m³/hr at pressures of up to 16 bar
Alongside pumps technology company Verder Pumps South Africa’s (VPSA’s) existing range of industrial pumps, the company exhibited its new Verderflex Dura 55 peristaltic pump for optimum performance and easy maintenance in heavy-duty applications at the Electra Mining...
More
 
 
Latest News
Updated 4 hours ago Swedish Ambassador to South Africa Christian Meuwly will next week inaugurate the final roll-out of the new vertical shaft brick kiln (VSBK) at clay brick manufacturer Langkloof Bricks’ facility in Jeffrey’s Bay. The VSBK formed a part of economic, social and...
Updated 4 hours ago Hot on the heels of the launch of Rustenburg’s rapid transport system’s brand name and logo last week, a negotiation framework agreement (NFA) has been formally agreed to and signed by the Rustenburg Local Municipality (RLM) and taxi and bus operators affected by the...
Updated 4 hours ago The runway at the George Airport, in the Western Cape, has been rehabilitated to improve safety, in terms of run-off and storm water drainage, and the structural capacity of the pavement surface. The scope of work comprised the extension of Runway 11/29, the...
More
 
 
Recent Research Reports
Defence 2014: A review of South Africa's defence industry (PDF Report)
Creamer Media’s Defence 2014 report examines South Africa’s defence industry, with particular focus on the key participants in the sector, the innovations that have come out of the sector, local and export demand, South Africa’s controversial multibillion-rand...
Road and Rail 2014: A review of South Africa's road and rail infrastructure (PDF report)
Creamer Media’s Road and Rail 2014 report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail network, the funding and maintenance of these respective networks, and the push to move road...
Real Economy Year Book 2014 (PDF Report)
This edition drills down into the performance and outlook for a variety of sectors, including automotive, construction, electricity, transport, steel, water, coal, gold, iron-ore and platinum.
Real Economy Insight: Automotive 2014 (PDF Report)
This four-page brief covers key developments in the automotive industry over the past 12 months, including an overview of South Africa’s automotive market, trade figures, production and the policies influencing the sector.
Real Economy Insight: Construction 2014 (PDF Report)
This five-page brief covers key developments in the construction industry over the past 12 months. It provides an overview of the sector and includes details of employment in the sector, infrastructure and municipal spending, as well as insight into companies’...
Real Economy Insight: Electricity 2014 (PDF Report)
This five-page brief covers key developments in the electricity industry over the past 12 months, including details of State-owned power utility Eskom’s generation activities, funding and tariffs, independent power producers and prospects for the sector.
 
 
 
 
 
This Week's Magazine
Integrated energy and chemical company Sasol has partnered with Unisa Graduate School of Business Leadership (SBL) professor and founder and CEO of PanAvest Partnership Dr Douglas Boateng to publish a series of books on executive supply chain management aimed at...
MORNÉ DU PLESSIS Increased urgency and burgeoning awareness of the importance of these issues are beginning to change political risks and, thus, State responses to environmental concerns
The World Wide Fund for Nature’s (WWF’s) 2014 Living Planet Index (LPI) indicates that there has been a 52% decline in vertebrate species since 1970. The Index tracked the trends of 10 000 discrete populations of over 3000 vertebrate species between 1970 and 2010.
Rwanda has joined a number of East African countries seeking to import electricity from Ethiopia as its demand grows. After it became apparent several generation project it is implementing will not come on stream early enough, now plans to import 400 MW from Ethiopia...
Metrorail’s first new passenger train will arrive in November next year, says Passenger Rail Agency of South Africa (PRASA) CEO Lucky Montana. “Next year we will be able to put our hands around the infrastructure and equipment we have been talking about for so long.”
The Competition Commission has launched an investigation into what it says are “price fixing, market division and collusive tendering in the market for the manufacture and supply of automotive components to original equipment manufacturers” (OEMs, or vehicle...
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks