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PRODUCTS / DATA Butterfly Dampers Multi Louvre Dampers Boiler Inlet/Bypass Systems Stack Dampers Guillotine Dampers Flap Diverters		Photos - PDS designed Butterfly Dampers.   Although Butterfly Dampers can be found in a wide range of installations, wherever possible, we have standardised to achieve the best possible price levels and delivery times. Sizes from Ø 63 to Ø 3000 with all types of actuation Previous Auto/Stop Next
		Data Sheet Damper Forms Circular Rectangular Square Duct Size 0.1m2 to in excess of  5.0m2 Temp. Range -20oC up to +1000oC Seal Design Seal ledge Single flexible element Twin flexible element--- (un-pressurised & 100%) Materials Carbon Steel 16M03 steel 1% Cr 0.5% Mo steel Stainless steel (all) 3Cr12 chrome steel Bearing Type Non-lubricated ball    bearing Gland Assy Adjustable packed Stuffing box type Felt seal assembly Function Open - Close Modulating (4-20 mA) Fail Safe Reservoir Spring return Operation Manual lever/gearbox Electric Pneumatic Hydraulic Special Designs Internally insulated High temperature Abrasive resistant Double damper config. Limit switches Additions Proximity sensors Junction boxes
		Power Damper Services Ltd. 20A Baker Avenue, Arnold, Nottingham, NG5 8FU, England Tel/Fax +44 (0)115 956 3314   Mobile: 07866 724731 E-mail: powerdamperservices@ntlworld.com © 2008 Power Damper Services Ltd. ( All Rights Reserved )