Tiefenbach 2/2 DIRECT. CONTR. FITTED SEAT VALVES FOR WATER AND OIL HYDRAULICS DN 200 Details

• Product Name: Tiefenbach 2/2 DIRECT. CONTR. FITTED SEAT VALVES FOR WATER AND OIL HYDRAULICS DN 200
• Brand: Tiefenbach
• Keywords: Tiefenbach 2/2 DIRECT. CONTR. FITTED SEAT VALVES FOR WATER AND OIL HYDRAULICS DN 200, Tiefenbach

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Pilot-controlled seat valves Pilot-control by means of own medium Leakage-free sealing on valve seat Force-controlled working piston Smooth switching, no pressure shocks Piston is extended to the outside, there fore visible piston position Hydraulic or pneumatic operation possible Hydraulic remote control possible Actuation magnet protected against dirt and humidity Wear parts are easy to access and fast to replace Manual emergency operation Stroke limitation possible to save separate throttle valves Protection against accidental operation The 2/2 directional control fitted seat valves are particularlysuitble for HFA liquids and clear water up to operating pressures of 320 bar maximum. The valves can be equipped with positive or negative pilot-conrol valves. In a de-energized condition, this results the main valve setting "valve closed" or "valve open". The valve switching periods can be influenced by fitted filter diaphragms or intermediate plate valves with fitted fine throttles located between pilot-control and main valve. In case of valves with larger nominal widths, valve switching periods can be significantly reduced by a double pilot-control system, e.g. pilot-control valve DN 6 with intermediate plate valve DN 9, DN 12, or DN 16. TECHNICAL DATA Building type Fitted seat valve                                                    Pilot-control pressure = System pressure, min. 25 bar Control medium Own medium Pressure liquid HFA acc. to CETOP or VDMA standard sheet 24320 with 95% water and 5% additives. Non-lubricated water (clear water) Mineral oil acc. to DIN 51524 and 51525 phosphoric ester                 Pilot-control systems see special brochures                                Max. operating pressures 320 bar Control medium return Separate without pressure into tank                                 Flow See table 1                                              Flow direction To both sides from "A" to "B" and "B" to "A"                        Liquid temperature Main valve: coarse filtering Pilot-control valve: 25-40 ?m

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