A breadth of expertise has led Novotema to develop unique manufacturing processes in order to produce high quality gas seals specific for this market. Careful preparation of the elastomer compound before moulding is performed internally to reduce impurities that can affect the quality of the final product.
With a broad knowledge of gas control applications Novotema can advise you on the right solution in terms of seal geometry and elastomer material selection. Novotema mould components from a range of elastomer compounds that are certified to the EN549 normative for this industry.
Safety is always a priority, so additional surface treatments are implemented to increase sealing performance, providing a uniform surface that improves contact with mating surfaces and reduces the potential for gas leaks.
Problems with sticking?
Often components such as valve seats/shutters can experience sticking which affects performance and can cause leakage. Novotema can conduct preliminary tests to measure the stiction of elastomers to mating surfaces, in order to prevent this from occurring.
Surface treatments, including chlorination and plasma treatment, help to improve our gas sealing performance and reduce stiction on mating surfaces.
Contact us to discuss your gas control seal requirements. Our experts are ready to help, ask us a question using the online chat.
Products for Gas Control
Below is a selection of the most common products we supply to the gas control industry. Visit the Products page to see the full range.
Membranes / Diaphragms
Novotema specialises in moulding high quality diaphragms and membranes with very thin cross sections, to tight tolerances, in infinite sizes, shapes and custom configurations.
High quality, precision O-rings in quantities from 5000 up to millions; available in standard sizes or custom sizes from 1mm to 450mm internal diameter and 0.6mm to 12mm cross section.
Below is a selection of the most common materials we supply to the gas control industry.
|Material Code||Hardness||Operating Temperature||Colour||Approvals / Certification|
|FKM||60 - 80 Sh.A.||0 to 150°C||Black, green||EN549, ozone resistant|
|FVMQ||30 Sh.A.||-20 to 100°C||Blue||EN549|
|HNBR||60 - 70 Sh.A.||-20 to 125°C||Black, yellow||EN549, ozone resistant|
|NR||45 - 80 Sh.A.||-20 to 80°C||Black||EN549, ozone resistant|
|VMQ||60 Sh.A.||0 to 150°C||Red||EN549|
Novotema moulds seals and components from a wide range of elastomer materials. With an extensive range to choose from, there is sure to be a material to suit every application. Browse the range ....Find Out More
Surface treatments can be applied to moulded components which enhance their operating characteristics and performance.Find Out More
Novotema operates from an 8400 sq.m. manufacturing facility using a combination of injection moulding and compression technology to manufacture over 850 million parts a year.Find Out More
Research and development, testing and analysis of polymer materials to ensure final components meet customer specifications and requirements.Find Out More
When a standard off-the-shelf component is not suitable, Novotema can design and develop a custom component that exactly matches the geometry and operating conditions.Find Out More