Control valve SPV DN 800

discmanualpneumatic

The segmented disc technology provides unique advantages for the control of fluids and steam: - space saving and lightweight design - high precision controlling - extreme operating conditions - nearly wear-free - high tightness - bidirectional flow possible - also suitable for steam and liquids which are contaminated with particles. The central throttling elements are two segmented discs which glide and seal against each other. They are positioned in the valve body perpendicular to the flow direction. By rotating the moving disc on the fixed disc the flow rate can be controlled precisely and continuously. The geometry of the fixed disc determines the flow capacity and the characteristic. The wide range of the segmented disc valve’s applications includes chemical and petrochemical, power plants, district heating, water supply and disposal as well as building materials and other process industries. Technical data: - Body design: flangeless wafer-type construction for flanges acc DIN EN 1092-1 Form B - Nominal size: DN800 (available from DN25 – DN800) - Nominal pressure: PN16 - Max. dp: 16bar - Fluid temperature: -60°C bis +220°C - Ambient temperature: -30°C bis +70°C - Rangeability: 60:1 - Characteristic: modified linear - Kvs-value: 10410 - Leakage rate in % of Kvs: < 0,001 - Sealing: PTFE chevron sealing set, preloaded - Actuator: Auma control actuator, 4-20mA, 3x400V - Size: 227 x 99 x 32 cm - Weight: 1527 kg Materials: - Body: 1.0570 painted - Discs: Stainless steel treated - Gear rack: Stainless steel