A range of metal cased PTFE lip rotary seals for use on rotating shaft equipment which bridge the gap between current technologies for both gas and liquid sealing applications.
The economy of conventional rubber lip seals must be weighed against their limitations for applications involving extremes of temperature, speed or pressure, particularly when combined with hostile operating conditions. However, there is no longer any need to involve the cost of bulky, multi-component mechanical face seals to handle these requirements.
Our compact metal cased PTFE lip rotary seals are not only economical, but they also offer impressive operating characteristics. They can run at speeds of 30 metres/sec, and cope with pressures up to 35 bar and temperatures from -20°C to + 250°C. They are resistant to chemical attack, have low friction characteristics and are designed to ensure long seal life even in conditions of no lubrication or when used with abrasive media.
A wide range of design configurations can be supplied which includes single or multi lip varieties with optional lip loadings, some with backing springs. Precision manufactured metal components are supplied in a range of alloys and include stainless steel versions where necessary. The seals can also be supplied for contra-rotating shaft applications, even incorporating threaded lip seals to make them particularly suitable for vacuum conditions or low pressure shaft sealing.