http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 13.04Change: -0.16
R/$ = 12.07Change: -0.10
Au 1204.60 $/ozChange: 1.40
Pt 1170.50 $/ozChange: 4.00
 
 
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 Letters 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|Mining|Pumps|Stainless Steel|Water|Africa|Flow|Manufacturing|Product|Products|Services|Steel|Power|Water
Port|Africa|CoAL|Compressors|Dewatering|Flow|Mining|Pumps|Stainless Steel|Water|Africa|Flow|Manufacturing|Products|Services|Steel|Power|Water
port|africa-company|coal|compressors|dewatering|flow-company|mining|pumps|stainless-steel-company|water-company|africa|flow-industry-term|manufacturing|product|products|services|steel|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
ENERGY EFFICIENCY The Expulse dampener can reduce energy consumption in an operation by up to 10%
Heavy-duty industrial valve manufacturing and services provider Flowrox has launched the Flowrox Expulse flexible pulsation dampener, which is designed to assist during pump and dampener maintenance by reducing noise and vibration, which can lead to pipe damage that...
The global pumps and valves manufacturing industry is showing renewed interest in this year’s Pumps, Valves and Pipes Africa Expo (PVPA), which is taking place at Gallagher Convention Centre in Midrand, from May 20 to 22, says event organiser Exhibition Management...
The international exposure of South African pumps manufacturers to international contractors is inspiring local pumps companies to supply products that adhere to international specifications and criteria, says foundry group specialist Steloy Castings. Steloy Castings...
More
 
 
Latest News
South African mining and energy adviser Ted Blom has raised a litany of concerns about the state of power utility Eskom and has warned of runaway costs and shortfalls in coal and water, as well as rail capacity. Blom was surprised by the recent buoyancy shown by...
JSE-listed Astrapak will sell specialised packaging systems manufacturer Knilam to Mapflex SA for R17.7-million. The proceeds would be used to reduce Astrapak’s current level of gearing.
The last of the 26 mooring units comprising the Port of Ngqura’s automated mooring system (AMS) have arrived at the port and are expected to improve port efficiency and safety, further driving the Transnet National Ports Authority’s (TNPA’s) objective of establishing...
More
 
 
Recent Research Reports
Steel 2015: A review of South Africa's steel sector (PDF Report)
Creamer Media’s Steel 2015 report provides an overview of the key developments in the global steel industry and particularly of South Africa’s steel sector over the past year, including details of production and consumption, as well as the country's primary carbon...
Projects in Progress 2015 - First Edition (PDF Report)
In fact, this edition of Creamer Media’s Projects in Progress 2015 supplement tracks developments taking place under the Renewable Energy Independent Power Producer Procurement Programme, which has had four bidding rounds. It appears to remain a shining light on the...
Electricity 2015: A review of South Africa's electricity sector (PDF Report)
Creamer Media’s Electricity 2015 report provides an overview of State-owned power utility Eskom and independent power producers, as well as electricity planning, transmission, distribution and the theft thereof, besides other issues.
Construction 2015: A review of South Africa’s construction sector (PDF Report)
Creamer Media’s Construction 2015 Report examines South Africa’s construction industry over the past 12 months. The report provides insight into the business environment; the key participants in the sector; local construction demand; geographic diversification;...
Liquid Fuels 2014 - A review of South Africa's Liquid Fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2014 Report examines these issues, focusing on the business environment, oil and gas exploration, the country’s feedstock supplies, the development of South Africa’s biofuels industry, fuel pricing, competition in the sector, the...
Water 2014: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2014 report considers the aforementioned issues, not only in the South African context, but also in the African and global context, and examines the issues of water and sanitation, water quality and the demand for water, among others.
 
 
 
 
 
This Week's Magazine
Sappi Southern Africa CEO Alex Thiel
Forest products group Sappi has confirmed the selection of its 25 MW biomass-to-power project, to be erected at its Ngodwana mill, in Mpumalanga, as a preferred bidder under the South African government’s Renewable Energy Independent Power Producer Procurement...
Information and communications technology (ICT) distributor DCC is making Windows- and Android-operating systems tablets available through retailers and education equipment suppliers to provide school children with affordable, high-performance education tools. The...
Another cement manufacturer is set to enter the Ugandan market, raising hopes that prices will come down and spur growth in the construction industry. National Cement, a Kenyan manufacturer, has unveiled plans to invest $195-million in a new manufacturing plant in...
With growth rates exceeding that in the developed world – at an average of between 4% and 5% between 2002 and 2014 – African countries provide investors with ample reason to tap into booming consumer demand says Manufacturing Circle executive director Coenraad...
The South African Chamber of Commerce and Industry’s (Sacci’s) Business Confidence Index (BCI) decreased by 3.7 index points month-on-month to 89.1 in March.
 
 
 
 
 
 
 
 
 
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
Subscribe Now for $96 Close
Subscribe Now for $96