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福斯气动执行机构

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FlowAct TMHigh Performance Actuator125 - 3000 cm2, 0,25 - 60 kN2ApplicationFor installation on control valves, director reverse action, for controlled oron/off operation.Product features• Multi-spring compact design• Radial spring arrangement permitsa low mounting height• Low volume between diaphragmand case gives fast response times• Strong operating force by permissi-ble pressure supply of 6 bar/ 87 psig• Permissible ambient temperature- 40 up to 80°C / - 40 up to 176°F• Stable guided stem• Fabric-reinforced roll-type dia-phragm with minimum area variationdue to stem position on loss in ope-rating force for various stroke posi-tions - linearity is retained• Stem bushing requires no mainte-nance• Stable yoke in spheroidal cast-iron• Central mounting on the controlvalve• Yoke and stem coupling with moun-ting surfaces according to NAMUR(DIN IEC 65 B CO)• Top resp. lateral mounted handwheelOperationThe diaphragm is actuated by thecontrol signal. The actuator stem mo-ves as soon as the diaphragm forceexceeds the counterforces of thesprings. There are two operationalmodes depending on the arrangementof the spring package:1. Stem extends by air failure2. Stem retracts by air failureThe control valve can be opened orclosed with a rising signal. On air failure,the actuator is set back to the zeroposition by spring force (fail-safe po-sition).Quality assurance system certifica-ted acc. EN ISO 9001 : 2000 inclu-ding product development.The SystemActuatorWithin the series the following combinations of yoke and valve types are possible:Without Yoke for valve type:FLOWPAKMULTI-Yokefor valve type:FLOWTOPFLOWPROPneumatic Actuator with integral pipework -Stem extends by air failure ( s )YokeO-RingsLock nut301SCHERRNAMUR-Yokefor val...

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福斯气动执行机构

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