Aseptic seals

The hygienic sealing solution for critical processes.

High-performance aseptic seals

At Epidor, we have a wide range of aseptic gaskets, designed to guarantee a perfect and safe seal in joints used in the food, pharmaceutical and cosmetic industries. These gaskets are used in standardised joints, where it is essential to avoid any dead zones, gaps or holes that can accumulate product residues and encourage bacterial contamination, but also in industrial quick couplings.

Thanks to their design, the joints with aseptic seals form an assembly that is easy to clean and maintain and meets the highest standards of hygiene and quality.

Connections compatible with aseptic seals

Aseptic seals are compatible with a wide range of standard and industrial hygienic connections, also known by their trade names:

Tri-Clamp® / Clamp
DIN 11851
SMS
Camlock
Guillemin

These connections are designed to allow quick and safe assembly without compromising the cleanliness of the system.

Why opt for aseptic seals?

When we talk about static sealing, we usually think of flat seals or O-rings. However, there are other specific solutions for sectors such as food, cosmetics or the pharmaceutical industry. At Epidor, we also work with non-flat profile gaskets, specially designed to guarantee a hygienic seal in sanitary joints, hose quick couplings and joints in accordance with DIN 3869.

Most relevant advantages:

These gaskets have in common a profile design that perfectly matches the standardised connections, guaranteeing:

An installation free of protrusions or voids that can accumulate product.
An effective seal that prevents the growth of germs or other contaminants.
Ease of installation, dismantling and cleaning is key in sensitive production lines.

Demanding working conditions

The design of aseptic seals makes them subject to high deformation stresses, together with frequent temperature peaks both in process and in phases of CIP cleaning o SIP sterilisation. It is therefore recommended that you replacement after each intervention, This prevents deterioration of the material and ensures optimum and safe sealing.

Available standards and materials

At Epidor, we supply aseptic seals in accordance with the main international standards for pipes y hygienic fittings:

Piping regulations

ISO 1127, ISO 2037
DIN 11850, DIN 11864
ASME BPE 2014
SMS 3008, SMS 3017
BS 4825
EN 10357, EN 10217-7

Fitting regulations

ISO 1127, ISO 2852
DIN 32676, DIN 11851, DIN 11853
ASME BPE 2014
SMS 1145, SMS 1149
IDF, RJT

Certified materials available

Our seals are made of FDA and food approved materials, including:

Ethylene propylene diene (EPDM)

Synthetic rubber with good resistance to hot water, steam, ketones, brake fluids and other products. Good electrical insulator. Strong incompatibility with lubricants, so it is not used as a seal material.

Typical temperature range from -35 ºC to +150 ºC.

Fluoroelastomer / Viton™ (FPM)

This material is popularly known as viton. It has good resistance to lubricants, fuels, acids and bases, among other products. Peroxide cured formulations improve its resistance to incompatible fluids such as alcohols and steam. Widely used as seals and O-rings, it is noted for its low gas permeability.

Typical temperature range from -20 ºC to +210 ºC.

Gylon® (high performance restructured PTFE)

This material is popularly known as Teflon. It is a thermoplastic (non-elastic) material with almost universal chemical resistance. It has a very low coefficient of friction and is practically non-stick. The problem of creep is largely solved by adding fillers such as graphite, coking carbon and glass fibre, among others, to the virgin PTFE.

Typical temperature range from -200 ºC to +260 ºC.

Acrylonitrile butadiene rubber (NBR)

Synthetic rubber with exceptional lubricant behaviour which makes it a first choice for seals and O-rings. Limited resistance to weathering and acids.

Typical temperature range from -30 ºC to +110 ºC.

Polytetrafluoroethylene (PTFE)

Typical temperature range from -200 ºC to +260 ºC.

Silicone (VMQ)

Methyl vinyl silicone rubber with outstanding heat resistance and good cold flexibility. Good electrical properties. Generally poor chemical resistance. Often used in cryogenics.

Typical temperature range from -60 ºC to +250 ºC.

Other materials available on request, depending on the process fluid, temperature and cleaning method used.

FAQ's on aseptic seals

What is the difference between a standard seal and an aseptic seal?

Aseptic gaskets are designed for hygienic joints, with no dead zones or gaps, making them ideal for preventing residue build-up and facilitating cleaning. Some variants such as clamp-on flange gaskets prevent the gasket from slipping when the system is opened, increasing safety and hygiene.

How often should they be replaced?

It is recommended to change them after each operation, as they are subject to fatigue stresses and high temperatures that accelerate their deterioration.

What regulations do they have to comply with?

Our seals comply with standards such as DIN, ISO, ASME BPE and SMS, as well as FDA and food contact requirements. In addition, there are models such as the D-Rings used in the dairy industry, adapted to DIN 11850 housings and compatible with DIN, SMS, US or BSOD standards.

Can they be produced in different colours?

Yes, depending on the material and application, aseptic seals can be supplied in different colours for traceability, line identification or visual quality control.

Do you need aseptic gaskets for your project?

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