Butterfly valve KLB

for airshut-offfor aircraft

Introduction
The KLB high-tight butterfly damper provides an airtight shut-off of volume flows in round air ducts. Leakage rates are extremely low, meeting the requirements of DIN 1946 Part 4 and DIN EN 1751 for damper leakage class 4 and casing leakage class C.

Key features

• Suitable for cleanroom and hospital applications requiring high hygiene standards
• Self-tightening design: sealing performance increases with system pressure (KLB)
• Corrosion-resistant construction: galvanized steel standard; stainless steel optional

Applications

• Shutting off volume flows in round HVAC ducts where airtight and hygienic closures are required
• Use in laboratories, cleanrooms, hospitals and other controlled environments

Technical data
Reference acoustic level: LpA = 35 dB(A).

• Airtightness: DIN EN 1751 Class 4 (damper leakage)
• Casing leakage: Class C to DIN EN 1751
• Available sizes: Ø 224–1000 mm
• Drive options:
  • manual
  • pneumatic (optional)
  • electric
  • various drive variants available
• Housing materials:
  • galvanized steel (standard)
  • stainless steel (optional)
• Accessories: position indicator for damper blade; limit switch (optional)

Technical specifications

• Model: KLB
• Brand: LTG
• Acoustic reference: LpA = 35 dB(A)
• Sizes: Ø 224–1000 mm
• Materials: galvanized steel (standard); stainless steel (optional)
• Drive options: manual, pneumatic (optional), electric

Downloads

• Product brief, technical brochure and operating instructions available as PDF