Butterfly valve | KLB

Maximum performance
Corrosion resistant

The KLB high-tight shut-off damper safely and airtightly shuts off volume flows in round air ducts.

The air leakage rate is so low that it can hardly be detected even by a laboratory measurement. The requirements of DIN 1946 Part 4 for airtight dampers (damper leakage class 4 to DIN EN 1751) and casing leakage class C to DIN EN 1751 are met with a high degree of certainty.

  • Meets the highest hygiene standards, as required in clean rooms and hospitals, for example
  • Maximum performance: becomes denser with increasing pressure (KLB)
  • Corrosion-resistant due to galvanized steel or stainless steel design

Ready for a breath of fresh air? Contact our comfort air experts now and breathe a sigh of relief - in the truest sense of the word!

Technical data

Technical Data for L_pa= 35 dB(A)

Airtight shut-off to DIN EN 1751 Class 4 (high density)

Sizes [mm] Ø 224-1000


Edelstahl (optional) Position indicator damper blade Limit switch (optional) Drive variants Manual adjustment pneumatisch (optional) electric Housing Stahl verzinkt


Overview brochure Product overview air distribution German
PDF 2.1 MB
Brief information on butterfly valve KLB German
PDF 666.5 kB
Technical brochure butterfly valve KLB German
PDF 1.64 MB
Specification text butterfly valve KLB German
DOC 45.08 kB
Operating instructions Butterfly valve KLB German
PDF 2.25 MB