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3 Way Diverter Damper Valves


Designed to divert the flow of high temperature exhaust gases emitted by gas turbines or stationary engines to a waste heat exchanger, or alternatively through a chimney to the atmosphere.

Diverters are in fact big size 3-way valves, which have connections identical with their adjacent inlet and outlet ducts.

Sophisticated design and precise assembly that enable the compensation of thermal deformations, as well as high temperature resistant materials, are the most important features of our diverters. Efficient thermal insulation prevents from heat losses and also protects the structure against high temperature influence.

These valves can also be provided with sealing air system in order to achieve optimum tightness.

Product properties:

range of dimension and diamet er ( WxH) / ( Ø):

200 x 200 mm – 2 000 x 2 000 mm

200 mm – 2000 mm

(other sizes on r equest)

Connection to duct:

• 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

Design and working parameters:

• 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 r equest, 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


• 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 C onformity in c ompliance with Machinery Directive

• CE Directive

• Declaration of C onformity 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


• for diverters for gas distr ibutor installations (gas turbines, etc.) with sealing air sy stems and thermal lining inside (see datasheet for

Tandem Diverters AFT-DVR-T)

• depending on the tr ansportation possibilities, diverters are built in one piece or in parts to be mounted together on their allocated site

3 Way Diverter Damper Valves

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