Product category:
Process and OEM Valves
News Release from: Emerson Process Management - Valve Automation | Subject: El-O-Matic E series
Edited by the Engineeringtalk Editorial
Team on 14 July 2004
Valve automation solution ensures a
clear view
El-O-Matic valve actuators play a key role at uShaka Island Marine World, a new world-class entertainment and tourism destination in Durban, South Africa.
uShaka Island Marine World, located in Durban, South Africa, is a new world-class entertainment and tourism destination containing an extensive aquarium, a dolphinarium and a seal stadium Emerson Process Management has supplied a complete valve automation solution to control the flow of seawater to the filtration units and to maintain tank levels
This article was originally published on Engineeringtalk on 4 Nov 2003 at 8.00am (UK)
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"We are delighted to have supplied equipment on this prestigious project", said Martin Horsfall of the Emerson Valve Automation Centre in Johannesburg, South Africa "The uShaka Island complex is very important to the tourism industry for South Africa".
"The Marine World exhibit is an essential part of the overall complex and it is important that it stays operational".
"El-O-Matic actuators guarantee virtually the longest working life of any actuator in the industry, helping to ensure the water supply systems will not let them down".
Water quality is very important, both in respect of chemical and biological quality and of clarity; the target for clarity is that there should be over 50m of clear visibility in each of the exhibits.
Because of these stringent requirements, it is necessary to have extensive filtration systems.
SAME Water Projects, which designed and installed the filtration systems, will use the Emerson solution for filter feed and backwash control as well as controlling level in the tanks and isolating the piping system.
235 of the EPDM rubber lined butterfly valves are automated with Emerson El-O-Matic E series actuators, 25 of which have modulating positioners.
The valves range in size from DN80 to DN600 and have nylon coated discs to suit the seawater application.
The remaining actuated valves are fitted with Namur compatible solenoid valves and switch boxes.
The actuators are mostly double-acting and range in size from ED40 to ED1600, there are also two PD2500s fitted to DN600 valves.
As part of the customer acceptance process, valves were randomly selected and subjected to extensive cycle testing.
The valves were immersed in seawater and operated a minimum of 600 times, at 6s intervals.
This simulated the valves' cycling requirements for approximately 3 years of operation.
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