Choosing the right seal for your application is not easy. If you want a reliable and long-lasting performance, it’s crucial to consider the following operational conditions.

• Working Pressure: High pressure applications require higher durometer seals to resist extrusion.
• Working Temperature: Different elastomers have different low and high temperature capabilities.
• Installation Parameters: Different elastomers have different elongation capabilities.
• Static or Dynamic Service: Each type of service may require a different elastomer and/or seal design.
• Media: Incompatibility of media can cause swelling, hardness change, and physical property deterioration. For example, media containing hydrogen sulfide requires material that can resist H₂S.

JST’s technical team will consider all above factors to make a recommendation on material and design. To assist with determining material compatibility with the service media, JST’s experienced team always have the best suggestions and advice on what material will work best in a particular fluid, including the nuances of the interaction of temperature on chemical resistance.

JST’s chemical resistance guides are based on an evaluation of how material properties change in an immersion test. The immersion test is typically performed in-house in the accredited test labs(Alpine Polytech) and/or with third-party certified labs. The screening protocol provides an idea of how a particular material will perform in representative fluids. An application engineer can analyze that data along with other application details, to recommend which material would best fit an application.  Recently, a valve company from Europe is looking for the lip seals which can resist to extremely low temperature(-196℃), JST’s application engineers choose the TFM and golden alloy spring to bespoke tailor make the lip seals to meet the customer’s requirement. The customer is very satisfied with these lip seals supplied by JST. This is only one of the many successful applications, JST is always dedicated to serve for the customers in different industries.