Magnetic liquid seals enhanced by gas purge

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 443 KB
• Volume: 1999
• Category: Article
• ISSN: 1350-4789
• DOI: 10.1016/1350-4789(99)90144-7

✦ Synopsis

Magnetic liquid seals enhanced by gas purge

Ferrofluidics has extended its range of magnetic liquid rotary shaft seals, with the introduction of a seal with purge capabilities. This combines leak free magnetic fluid sealing with purge capabilities so that it can handle particle laden gas streams. The purge prevents the ferrofluid from being damaged by particles and extends the operating life of the seal. It is designed for use with vertical pumps, fans, blowers and other low pressure devices which operate in dirty gas or air conditions.

Ferrofluidic seals rely on a magnetic liquid O-ring to seal around a rotating shaft. They offer many advantages over conventional seals such as totally hermetic sealing, no wear and therefore minimal maintenance costs and the ability to re-seal themselves after overpressurisation.

This new seal is part of the company's GT6 range of magnetic liquid rotary shaft seals and is one of several new options which extend the operating range of Ferrofluidic industrial seals. Other new developments include seals with anti-corrosive coatings for aggressive environments and custom designed seals for higher pressure applications.