Title: Spjeldventil.pdf
The damper must be opened and closed slowly in order to avoid hydraulic shocks in the pipe system.Product featuresMode of operationThe butterfly valve is opened or closed completely by an open-close rotary actuator. Continuous rotary actuators are connected by a commercially available controller and move the valve to any position desired. The valve disk made of stainless steel is pressed into the soft-sealing EPDM seat by a rotary movement and ensures leakage rate A (tight). The pressure losses are slight in the open position and the kv value is at a maximum.Manual override Manual throttling or shut-off can be carried out with a lever or a worm gear (see«Accessories»). -With lever (DN25…150): Adjustable in 10 ratchet steps with position indication ( 0 = 0° (angle); 9 = 90° (angle) ) -With worm gear (DN25...700): steplessly adjustable (self-locking) with position indication.AccessoriesDescriptionTypeElectrical accessories Stem heating flange ISO 5211, F05 (30W)ZR24-F05DescriptionType