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To ensure that our screw plugs remain reliably tight, we offer our customers the pre-assembly of elastomer seals in accordance with the respective requirements profile. The elastomer seal is a very soft material that already shows a sealing effect without great pretensioning forces.

Provided that the mating part on the screw is appropriately machined, the result is a high-quality and precise assembly of a screw plug with a precisely matched and accurately fitting elastomer seal. We prefer to use the elastomers NBR, FPM, HNBR and EPDM, in each case according to the required media resistance and the respective application.

There is the possibility of automated assembly at the end customer's site
We supply screw plugs with elastomer seals, for example, in accordance with the specifications of ISO 6149. In addition, we manufacture in accordance with customer-specific requirements.
Elastomer sealing rings according to current standards are used, DIN EN ISO 9974-2. In addition, parts according to older specifications are also taken into account, e.g. elastomer sealing rings according to DIN 3869, DIN 3852-11.

Your benefits

  1. Pre-assembly at BSH enables automated assembly
  2. The time-consuming and error-prone manual assembly at the installation site is eliminated
  1. Selection from various elastomers depending on the medium, operating conditions and operating temperatures.
  2. The sealing effect already starts when the sealing ring is in full contact with the mating part

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Our Sales Team

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Bilstein & Siekermann GmbH + Co. KG
Industriestraße 1
D-54576 Hillesheim

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We have won awards

Awards are a mark of quality. See for yourself!

  • German Brand Award 2019
  • Innovator des Jahres 2018
  • TOP 100 2017
  • Großer Preis der Mittelstandes
  • Beste Arbeitgeber Marke 2019
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