Düker GmbH

Bottom outlet valves

reliable, resistant, durable ...

Düker bottom outlet valves stand out for operating reliability, long service lives coupled with simple maintenance and cleaning. They are manufactured in line with the standards of the pressure equipment directive “PED” and comply with Technical Instructions on Air Quality Control (TA-Luft), Safety Integrity Level II (SIL II) and ATEX.

All gaskets with contact to the media are designed to meet the FDA guidelines. The design complies with the requirements for Qualified Hygienic Design (QHD).


Four different types will meet the requirements of the following applications and areas of use:

  • regular enamel
  • gap-free GMP-style enamel
  • Stainless steel or Hastelloy GMP-style
  • FireSafe according to EN-ISO 10497


The following versions are available for the first three types:

  • with manual drive
  • with axially arranged pneumatic drive
  • with laterally offset pneumatic drive
  • with/without bellows
  • with bloc flange– sealed towards the container
  • with bloc flange– sealed towards the gasket



  • Paint finish if desired by the customer
  • White email800 enamelling



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