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Mechanical Seals Standard

Designing pumps, compressors and other equipment, the aim is to prevent leakage into that can emerge at any point by liquids or gases.

To solve this problem very often are used mechanical seals.

To obtain the desired sealing function and an adequate lifetime of the mechanical seal,the preconditions must be fulfilled within the permitted tolerances at any time:

  • parallelism of the sealing surfaces
  • perpendicularity of the seal faces to the rotation axis
  • elastic contact of the sealing surfaces
  • existence of a lubricating film between the two sealing surfaces

Usually the sealing capability of the mechanical seal against shaft or housing is obtained with the secondary seals, as O-rings, bellows or boots

In conjunction with the International Organization for Standardization (ISO) and their standards (ISO 3069), the German Industrial Standard (DIN) published proposals for standard mechanical seals with DIN EN 12756 (24960).

These proposals relate to the sealing rooms, main dimensions, designation and material codes.

Mechanical seal: The established solution for many industries

When using compressors, pumps and other systems, the tightness of the entire system is crucial. The sealing systems are a classic weak point that you can optimally compensate with the matching mechanical seal from the range of Billi Dichtungstechnik GmbH. We offer mechanical seals for various applications and industries, with which you can equip yourself functionally or persuade your customers as a repair service unrestricted.

Properties of our mechanical seal in profile

In the wide range of gaskets from Billi Dichtungstechnik GmbH, the mechanical seal is the leading solution for a large number of machines, systems and technical devices. Within acceptable tolerances, all our quality parts provide you with a first-class seal for a wide range of technical sealing requirements. With a mechanical seal of this category you ensure maximum tightness and prevent the escape of almost all liquids and gases.

We rely exclusively on the highest quality for our products. Our seals can effortlessly meet your requirements for your machines and systems without losing their tightness in the long term. The mechanical and chemical resistance is also high and ensures the desired sealing over a long time. With a look at our assortment, for example in our product catalogs, you will learn more about the suitability of the mechanical seal in its different variants for your individual purposes.

High quality seals according to international standards

For the manufacture of the mechanical seal and other products, Billi Dichtungstechnik GmbH follows the international standards as well as the national standard proposals for mechanical seals according to EN 12756 (DIN 24960). In addition to the standard designation, the standards provide the framework values for dimensions and sealing chambers. This assures you safety when buying a product and the ideal suitability for your purposes.

In addition to classic O-rings as secondary seal, we offer the mechanical seal in further product variants. To seal the housings and shafts, sleeves or bellows are the established alternative that you will also discover in our range. Assemble a standardized and high-quality equipment for all purposes in your company or equip the sales representatives of your company with the right spare parts.

At billi you will find the ideal mechanical seal online

If you require separate solutions for special work areas, you can rely on the decades of expertise of Billi Dichtungstechnik GmbH in sealing technology. Since 1991, we are one of the established brands in the national and international business, offering solutions of the highest product quality, from the mechanical seal standard to gaskets and spiral wound gaskets. With special mechanical seals, for example for food or shipping, we know exactly the needs of the industries..

We sell our mechanical seal and other products in more than 50 countries. Your company can also benefit from us as a strong partner in sealing technology, with the mechanical seal and other solutions you can advance production and service. If you want to know more about individual articles, browse through our catalogs online or get personal advice. We will gladly assemble the ideal mechanical seals for your purposes and familiarize you with technical specifications and standards.

Catalog Mechanical Seals Standard

Catalog Mechanical Seals Standard

Freequently asked questions about mechanical seals

Where are mechanical seals by Billi Seals used?

Mechanical seals are used in almost all types of pumps: in common garden pumps, refinery pumps, in the gas industry, dairies, breweries as well as in the beverage and food industry and even in nuclear power plants. We will also be happy to help you with customized mechanical seals for agitators.

Which mechanical seal suits my project?

We offer mechanical seals in piece packages, too. We permanently hold a huge range in stock. On request, we also supply customized mechanical seals. We will be happy to show you which mechanical seal suits your individual projects.

Is there a standard for mechanical seals?

Our mission as a high-end manufacturer of first-class mechanical seals is to not only  meet demanding customer expectations but to exceed them. Our mechanical seals are standardised according to DIN EN 12756, formerly DIN 24960. That is a huge customer benefit as pump-specific mechanical seals are usually not standardised. We are able to design mechanical seals that individually meet your companies` needs.

Can I reorder seals or spare parts from Billi Seals?

Of course, it is possible to reorder seals or spare parts and accessories at any time.

Does Billi Seals also offer axial face seals?

Mechanical seals are fixed on a shaft. Axial mechanical seals belong to the upper category of mechanical seals. Quality-conscious customers will be happy to take a chance here, too. Axial face seals are developed, designed and distributed in-house.

Which sizes of mechanical seals are available at Billi Seals?

Our mechanical seals are available from a shaft diameter size of 10 mm. 100 mm is considered as standard value. We are happy to produce customized seals on your request.

What is the advantage of a mechanical seal in comparison to other seals?

The packing gland is considered as the parent model of mechanical seals. It`s a braided product. The system requires a leakage: it drips on a nearly constant level to ensure an immense liquid consumption. A mechanical seal, on the other hand, does not loose fluid and is considered leakage-free. You will experience an all-round reliable seal. Chemical substances or hazardous vapours and smoke can, therefore, no longer ooze.

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