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BUTTERFLY DAMPER The ML model is a butterfly damper for assembly between flanges on gas conduit systems. The ORBINOX standard model is designed for opera- tion at pressures of up to 500 mbar, with recom- mended speeds of below 30 m/s and temperatu- It is a relatively air tight valve with a closing degree of between 90% and 99% which can reach 100% if an air sealing system is included The standard model of these dampers is designed so that the assembly is carried out in such a way that the drive shaft always remains in a horizontal position, although there is an option of assembly with the shaft in vertical position on request. STANDARD BUTTERFLY DAMPER (ML) This two-way damper has the function of contro- lling the passage of gases circulating in the con- duit. The butterfly damper is made up of a disc or disc shutter which rotates on two semi-shafts. The butterfly damper is normally supplied as a single part, except for applications in which the dimen- sions of the unit require special transport. The body of the butterfly dampers is a fabricated construction which can be made of different mate- rials. Standard construction supplies include dia- meters ranging from 150 mm (minimum) to 2000 mm although, on request, larger sizes can be cons- VALVE SOLUTIONS IN MORE THAN 70 COUNTRIES The butterfly disc is constructed flat, with reinfor- cing ribs and is supported on two semi shafts. The flat disc system is sufficiently rigid for the operatio- nal pressures of these valves and it does not have significant losses. Step seat Seal design The butterflies have two types of seal design. Depending on the application, the options are: swing-thru (closure from 90 to 97%) for environ- ments with dust concentrations (less than 1000 mg/Nm3); and the step seat (closure of 99%) sui- table for other applications requiring a high level ORBINOX supplies its butterflies with the bea- rings situated on the outside and separated from the packing. This way, they are kept away from sources of heat and corrosion, thus lengthening their useful life. This system also allows for the We reserve the right to change any data at any time depending on its criteria and without prior notice. |OBX 04/08 | 2. EDITION | ORBINOX S.A. Pol. Ind. s/n - 20270 ANOETA - Tel.: +34 943 698030 - Fax: +34 943 653066 - e-mail: orbinox@orbinox.com ML-1 ORBINOX CANADA, ORBINOX USA, ORBINOX COMERCIAL, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.

VALVE SOLUTIONS IN MORE THAN 70 COUNTRIES changing of the packing without having to remove the bearing, which will make future maintenance tasks easier. ORBINOX supplies its valves prepared for an outer insulation of 200 mm. A space has been left free in order to change bearings and packings in the future without the need to remove said insula- BUTTERFLY DAMPER WITH SEALING The butterfly damper with sealing system is compri- sed of two butterflies. The seal is created in the space between these two discs, injecting ambient air at a higher pressure than that of the gases cir- culating in the...

VALVE SOLUTIONS IN MORE THAN 70 COUNTRIES APPROXIMATE DIMENSIONS Manual actuator Electric actuator 1/4 turn pneumatic actuator Linear pneumatic actuator We reserve the right to change any data at any time depending on its criteria and without prior notice. |OBX 04/08 | 2. EDITION ORBINOX S.A. Pol. Ind. s/n - 20270 ANOETA - Tel.: +34 943 698030 - Fax: +34 943 653066 - e-mail: orbinox@orbinox.com ML-3 ORBINOX CANADA, ORBINOX USA, ORBINOX COMERCIAL, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.