Single plate, round or square duct, manual or actuated
Louver damper
Multi-blade for large duct and stack isolation
Slide gate
Manual or pneumatic, single or double gate
Double flap valve
Alternating chambers for airtight gravity discharge
Performance
Size range
DN200 - DN3000, non-standard sizes on request
Leakage
Low leakage design with seal strip or metal seat
Operating temperature
≤ 450 °C depending on seal material
Working pressure
Negative or positive pressure duct service
Materials and actuation
Body
Carbon steel, galvanised or 304 / 316L stainless
Blade and gate
Reinforced plate with wear liner for abrasive dust
Actuator
Manual handwheel, lever, pneumatic cylinder or electric
Flange
Matched to the duct or hopper connection standard
Values shown are the standard manufacturing range. Final parameters are calculated from your gas volume, dust or pollutant load, temperature and the emission standard in force at your site.
Customisation options
Dimensions and flange drilled to your existing duct or hopper
Stainless steel and wear resistant lining for corrosive or abrasive media
Pneumatic or electric actuation with position feedback and interlock
Extended bonnet and insulation for high temperature service
Export packing & delivery
Valves packed individually with flange faces protected
Actuators and position switches packed in separate cases
Dimension drawing and installation orientation marked on each body
Drawings, assembly sequence, manual and test records are supplied with every shipment. On-site engineer dispatch can be arranged for complete system projects.
Tell us your plant condition, we will size the system
Send air volume, dust or gas data, temperature and available space. Our engineers reply with a configuration proposal and a budget quotation within 1 working day.
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