Esa S.r.l – Energized Seals and Industrial Gaskets

Viale J.F. Kennedy, , n. 739, 21050 Marnate (VA), Italy

About Esa

Since 1999, on the back of many years’ experience in the field of seals and supply of industrial spare parts, ESA Srl, with its simplified and flexible set-up, is able to adapt to the needs of all medium/large-scale plants.
In 2004, ESA launched its production of Energized Seals – at first made with toroidal springs and then in 2005 introducing its “finger-springs”.
From the outset, the aim of making this type of seal is that of achieving excellence by making use of the best raw materials and machinery available.
We are an innovative manufacturer as is proven by our constant search for solutions to enhance our lines and the materials used. Our flexible and streamlined organizational structure allows for speedy quotations and order processing, whilst preventing bureaucratic delays.


Every stage of the design and manufacturing process is carried out in the Marnate (VA-Italy) plant. Our only goal is to provide customer satisfaction with our high-quality products, flanked by a high level of customer service, both during and after sales, and technical support.

Energized seals:

For all situations where rubber O-rings cannot be used due to problems with temperature, pressure or chemical compatibility.

– Temperature ranging from -196° C to 300° C.
– Pressure ranging from 0 to 1500 Bar for ANSI 150 to 2500 and API 2000 to 15000.
– Diameters can vary from a minimum of 15 mm up to max of 2300 mm.

Made-to-measure seals can be made for use in grooves that are of different size than those listed in our catalogue.


ESA S.r.l. has a system of quality management certified by Dasa-Rägister SpA for the ‘Design and production of spring energized seals’ in accordance with EN ISO 9001:2015 and can certify its products according to Norsok M-710 standards.
All seals can be supplied according to ISO 15848-1 Low Fugitive Emission, Shell MSE 77-312 specifications.