Koso VSD-5227LA-RS Valve

This Series provides high performance, high power diaphragm actuators of multi-spring type that are compact and light. Receiving pneumatic or electric signals, the unit balances the force created when diaphragm is air-pressured through positioner and the force of compressed spring, so that the output shaft is controlled and placed at a set position.
Control of position by pneumatic signals (20 to 100Kpa) directly applied on diaphragm is also possible. Combination with KOSO positioner provides high accuracy position control.

Back to topSpecificationsTypeLinear Stem Motion Type5221LA5227LA5235LA524SLA
524LLA526SLA
526LLAActuator size218270350450650Max. OutputN218536484315745316475N-m-----Air supply KPa140, 300, 340140, 300300Spring range Kpa20 to 100, 80 to 200, 120 to 30020 to 100, 80 to 20080 to 200Max. stroke/angle20mm30mm40mm80mm110mmActionDirect Action or Reverse ActionEnvironment temp.Standard type: -10 to +70°, Low temp.service: -40 to +40°, High Temp.service: 0 to +100°OptionsManual handle, Limit SW, Positioner, Air-set etc.TypeRotary Stem Motion Type5221RA5227RA5235RA524LRAActuator size218270350450Max. OutputN----N-m46.4116.2183.2553.7Air supply KPa300, 340300Spring range Kpa80 to 200, 120 to 30020 to100, 80 to 200Max. stroke/angle60°ActionDirect Action or Reverse ActionEnvironment temp.Standard type: -10 to +70°, Low temp.service: -40 to +40°, High Temp.service: 0 to +100°OptionsManual handle, Limit SW, Positioner, Air-set etc.

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