Guillotine Damper Valves

Guillotine damper valves type GDV and GDV-T serve mainly for the shut-off and/or flow regulation of different media such as air or process gas.

The construction varies from, welded construction to divided structures for bigger sizes.

The gate valve’s knife can be made as a single design or reach 100% tightness in a tandem design.

For special high temperature applications, ceramic lining inside the body is available according to customer requirements.

Flowrates Technical Advice for Choosing a Knife Gate Damper

It is possible to use a double gate design and pressurize the space betwen the two blades to create an overpresure.

Industrial Applications: Gas Extraction and Dust Removal

  • Flue gas extraction installations
  • Flue gas desulphurization
  • Gas utilization SO2, SO3,NOx
  • Dedusting of furnaces
  • Glass factories
  • Metallurgical plants for copper, zinc, plumb
  • Cement factories
Industrial knife gate damper for gas extraction, dust removal, and high-temperature processes

Available Diameter Ranges for Knife Gate Dampers

range of diameters: Ø 50 mm – Ø 2 000 mm (and other sizes on request)

Connection Options and Flange Standards

  • by flanges acc. to DIN 24154
  • by flanges acc. to PN6, PN10, PN16 (acc EN1092-1)
  • custom-made acc. to customer requirements (ANSI / GOST / OTHER)
  • welding-ends
  • rounded flanges for fiber compensator connection

Welded Construction and Thermal Operating Ranges

  • design pressure < 0,5 bar
  • design pressure < 3,0 bar (with PED Directive)
  • design temperature -30°C do +750°C (max up t o 1100ºC)
  • other temperatures on request, possibility to use isolation, concrete or ceramic lining etc.

Actuator connection

  • according to ISO 5211
  • custom-made acc. to customer requirements
  • adapted to work with customer actuators or on site actuators

Coating

  • Carbon steel elements: RAL 2008 as standard with epoxy primer up to 150°C above Thermal coating.
  • Stainless steel elements: acid treatment and passivation
  • other on request, all painting systems acc. to EN ISO 12944, sy stems C2 up t o C5 – industrial/marine

Applicable directives

  • Declaration of Conformity in compliance with Machinery Directive
  • CE Directive • Declaration of Conformity in compliance with EU Directive
  • ATEX Directive (all g roups and z ones)
  • PED Directive

Tightness class

  • possible class I, II and III ac c. to FCI 70-2 (ex ANSI B16.104)
  • possible geometrical tightness from 95% up to 100% (see da tasheet Materials & S ealings)
  • possible 100% tigh tness with sealing air systems (see datasheet AFT-DV-T/DB)

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