[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-663633-105":59,"doc-detail-663633-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","skilmatic-range-eh-self-contained-electro-hydraulic-actuators-installation-operation-and-maintenance-manual","SKILMATIC RANGE EH - SELF-CONTAINED ELECTRO-HYDRAULIC ACTUATORS - Installation, Operation and Maintenance Manual","","Instruction manual for Rotork EH Range self-contained electro-hydraulic actuators, describing integrated control module, hydraulic manifold, and power unit components (motor, pump, reservoir). Covers configurations for spring-return and double-acting operation, mounting flexibility, torque/thrust capabilities, and protected enclosure details. Explains controller monitoring using potentiometer or external position transmitter and pressure transducer, re-charge behavior, seating and obstruction detection, and speed/position accuracy options via accumulator and timers. Provides Health and Safety installation requirements and references relevant electrical and hazardous-area regulations for the UK and USA.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/skilmatic-range-eh-self-contained-electro-hydraulic-actuators-installation-operation-and-maintenance-manual/663633/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/skilmatic-range-eh-self-contained-electro-hydraulic-actuators-installation-operation-and-maintenance-manual/663633.png","ImageObject",300,407,{"name":92,"@type":93},"Boyslovefans","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-28",true,{"@type":102,"interactionType":103,"userInteractionCount":29},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What components make up the Rotork EH range of self-contained electro-hydraulic actuators?","Question",{"text":112,"@type":113},"The system includes an integrated control module, a hydraulic manifold, and a power unit made of a motor, hydraulic pump, and reservoir.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How do spring-return units operate when pressurizing and stroking the actuator?",{"text":117,"@type":113},"A pump/motor combination provides hydraulic power to stroke in one direction, while spring force provides power for the opposite stroke direction. The controller monitors valve position and hydraulic pressure and can re-charge the system if pressure drops below a configurable preset.",{"name":119,"@type":110,"acceptedAnswer":120},"What key safety requirement applies to installing units marked for potentially explosive atmospheres?",{"text":121,"@type":113},"If the nameplate indicates suitability for installation in a potentially explosive atmosphere, the unit must not be installed in a hazardous area that is not compatible with the specified gas groups and temperature class on the nameplate.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},663633,1793229702,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":29,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":129,"read_time":144},1374410101428,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","Established Leaders in Valve Actuation  \nSKILMATIC RANGE EH  \nSELF-CONTAINED ELECTRO-HYDRAULIC ACTUATORS  \nINSTALLATION,  \nOPERATION AND  \nMAINTENANCE  \nMANUAL  \nPublication F730E Date of issue 11/09  \nTABLE OF CONTENTS  \nSECTION CONTENT PAGE  \n1 Introduction 3  \n2 Health and Safety 4  \n3 Installation 5  \n4 Operation 6  \n5 Controller Configuration 10  \n6 Storage and Maintenance 27  \n7 Grease and Hydraulic Oil Specifications 28  \n8 Drawing / Parts List 29  \nAppendix  \nA Accumulator Charging  \nB Driver Outputs  \nC Recommended Spare Parts  \nINTRODUCTION  \n1.0 Introduction  \n1.1 General Overview  \nThe Rotork EH Range of self-contained, electro-hydraulic actuators include an integrated control module; a hydraulic manifold; and a power unit consisting of a motor, hydraulic pump and reservoir. EH actuators are available in doubleacting or spring-return configurations for both quarter-turn and linear applications.  \nThey can be configured to mount in any position, including remote mounting of the control module and/or hydraulic power unit (HPU).Torque requirements up to 600,000 Nm (5.3 million lbf-in) and thrusts up to 5,500,000 N (1.2 million lbs) can be accommodated.  \nAll electronics are protected in awate rtight o r explosio n-p roof enclosure. Other features include local manual control, indication feedback via dry contacts and 4-20 mA signal; or optional digital control via Modbus, Fo u ndat io n F ie ld b us , P ro fi b us , Device Net or Rotork Pakscan communication systems. The EH Range can be supplied for operation with virtually any single phase, three phase, or 24VDC power supply.  \n1.2 Operational Overview: Spring-Return Units  \nHydraulic power is provided by a pump/motor combination to stroke the actuator in one direction. Spring force provides power to stroke the actuator in the other direction.  \nThe controller uses an internal potentiometer or external position transmitter and pressure transducer to constantly monitor valve position and hydraulic pressure. The system allows for torque seating of the valve and also detects valve obstructions. The motor will turn on to re-charge the system if pressure drops below a configurable preset value. EH units may be configured to stop based on pressure or position limits.  \nTravel speed adjustment of the spring stroke is provided as a standard feature. Speed control of the hydraulic stroke is possible through the fitting of an  \noptional accumulator or by using the interrupter timer. A pressure switch is used to maintain the correct pressure in the accumulator.  \nFor positioning units, an additional solenoid is added to route the hydraulic supply through a smaller orifice. This allows the actuator to slow down as it approaches its demand position resulting in better positioning accuracy.  \nThere is also a solenoid fitted to direct the pump output directly to the reservoir. This allows the motor to remain on, rather than rapidly cycling on/off, while the actuator direction is frequently reversed in the small gradations inherent in positioning systems.  \nAn optional, manual hydraulic pump is available. This may be used to manually stroke the actuator/valve during loss of electrical power or during start-up.  \nLocal and Remote operation is provided as standard. The actuator can be opened and closed locally or will accept a number of remote commands.  \n1.3 Operational Overview: Double-Acting Units  \nHydraulic power to stroke the actuator open or close is provided by a pump/motor combination. A 4-way, 2-position,directional control valve is used to control direction. Dual pilot operated check valves lock the actuator in place at end of travel.  \nTypical EH Range  \nSpring Return Actuator  \nThe controller uses an internal potentiometer or external position transmitter and pressure transducer to constantly monitor valve position and hydraulic pressure. The system allows for torque seating of the valve and also detects valve obstructions. The motor will turn on to re-charge the system if","cbCaijt3pmBNx6LE","https://ap.wps.com/l/cbCaijt3pmBNx6LE","pdf",1585035,36,"English","# 1 Introduction\n## 1.1 General Overview\n## 1.2 Operational Overview: Spring-Return Units\n## 1.3 Operational Overview: Double-Acting Units\n# 2 Health and Safety\n## 2.1 Installation\n# 3 Installation\n# 4 Operation\n# 5 Controller Configuration\n# 6 Storage and Maintenance\n# 7 Grease and Hydraulic Oil Specifications\n# 8 Drawing / Parts List\n# Appendix\n## A Accumulator Charging\n## B Driver Outputs\n## C Recommended Spare Parts","[{\"question\":\"What components make up the Rotork EH range of self-contained electro-hydraulic actuators?\",\"answer\":\"The system includes an integrated control module, a hydraulic manifold, and a power unit made of a motor, hydraulic pump, and reservoir.\"},{\"question\":\"How do spring-return units operate when pressurizing and stroking the actuator?\",\"answer\":\"A pump/motor combination provides hydraulic power to stroke in one direction, while spring force provides power for the opposite stroke direction. The controller monitors valve position and hydraulic pressure and can re-charge the system if pressure drops below a configurable preset.\"},{\"question\":\"What key safety requirement applies to installing units marked for potentially explosive atmospheres?\",\"answer\":\"If the nameplate indicates suitability for installation in a potentially explosive atmosphere, the unit must not be installed in a hazardous area that is not compatible with the specified gas groups and temperature class on the nameplate.\"}]","SKILMATIC RANGE EH - SELF-CONTAINED ELECTRO-HYDRAULIC ACTUATORS - Installation, Operation and Maintenance Manual | PDF",91]