PTFE radial lip seal

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 114 KB
• Volume: 1994
• Category: Article
• ISSN: 1350-4789
• DOI: 10.1016/1350-4789(94)90134-1

✦ Synopsis

Edge-welded metal bellows mechanical seals are to be supplied to two major oil & gas industry projects. Control of emissions is a high priority for the heavy duty process pumps on the Kalundborg refinery expansion in Denmark as well as those on Hamilton Oil Co.'s Liverpool Bay Development but two different solutions have been selected.

Statoil, the operator of the Kalundborg refinery, has opted for EG&G Sealol's Emission Containment Seal (ECS) which is used for a number of 'light end' hydrocarbon applications. The ECS arrangement is a dry running secondary seal in a tandem configuration, which does not require the support of a liquid barrier system. The operating parameters for the ECS are temperatures to 290 °C, containment of process fluid to 25 bar and shaft speeds to 60 m/s. Standard sizes range from 22 mm to 110 mm.

Hamilton Oil Co. has also selected seals from EG&G Sealol for its on-shore gas terminal at Point of Ayr, North Wales. The company has requested a specially designed barrier system which requires the elimination of all screwed connections wherever possible. The pressurised system, designed to the API Standard Plan 53, will support a double seal arrangement on applications which are considered to be of a highly toxic nature.