Abstract: A device including a centrifugal separator for cleaning of a gas, especially a gas containing impurities in the form of solid and/or liquid particles, includes a stationary casing enclosing a separation space, an inlet channel, a rotating member in the separation space for separating at least a main part of the impurities from the gas, a gas outlet channel, and an outlet for discharging a separated phase of the gas. A supply member is provided for supplying a liquid, in the form of an aerosol, to the gas to be cleaned and which comprises a supply conduit with an outlet end, and an ejector nozzle connectable to a pressurized gas conduit and including a nozzle outlet. The nozzle outlet at the outlet end permits ejection of the aerosol from the outlet end by means of the pressurized gas supplied to the ejector nozzle and the nozzle outlet.

Abstract: A device including a centrifugal separator for cleaning of a gas, especially a gas containing impurities in the form of solid and/or liquid particles, includes a stationary casing enclosing a separation space, an inlet channel, a rotating member in the separation space for separating at least a main part of the impurities from the gas, a gas outlet channel, and an outlet for discharging a separated phase of the gas. A supply member is provided for supplying a liquid, in the form of an aerosol, to the gas to be cleaned and which comprises a supply conduit with an outlet end, and an ejector nozzle connectable to a pressurised gas conduit and including a nozzle outlet. The nozzle outlet at the outlet end permits ejection of the aerosol from the outlet end by means of the pressurised gas supplied to the ejector nozzle and the nozzle outlet.

Abstract: The present invention relates to an electro-pneumatic positioner for use with a pneumatically controlled two-chamber actuator comprising a first valve unit (10) comprising a first air supply valve (14) and a first air outlet valve (37) connected to a conduit (30, 38, 50), which in turn is connectable to a chamber of the actuator, a second valve unit (12) comprising a second air supply valve (14′) and a second air outlet valve (37′) connected to a conduit (30′, 38′, 50′), which in turn is connected to a second chamber of the actuator; a first control device (60, 74) acting on the first air supply valve, which first control device comprises a first control valve (60); a second control device (60′, 76) acting on the said second air supply valve, which second control device comprises a second control valve (60′).

Abstract: In the rotor of a centrifugal separator there is an annular slide (6) for opening and closing of a periphery outlet (12, 13) from a separation chamber (9). The slide (6) at its radially inner edge is connected with and axially fixed relative to the rotor body (1, 2) but has a radially outer edge portion (11) which is axially movable relative to the rotor body (1, 2). This is possible because a portion of the slide, having a substantial radial extension, is flexible. In operation, the flexibility of the slide results in an angular change between portions of the slide situated at different radial distances from the center axis of the rotor.