{"id":13584,"date":"2026-07-27T21:51:55","date_gmt":"2026-07-27T13:51:55","guid":{"rendered":"https:\/\/raymonvalve.com\/product\/scotch-yoke-actuator\/"},"modified":"2026-07-29T17:12:23","modified_gmt":"2026-07-29T09:12:23","slug":"scotch-yoke-actuator","status":"publish","type":"product","link":"https:\/\/raymonvalve.com\/fr\/product\/scotch-yoke-actuator\/","title":{"rendered":"Actionneur \u00e0 m\u00e9canisme \u00e9cossais"},"content":{"rendered":"
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Engineering scope<\/div>\n

What controls a responsible Scotch Yoke Actuator selection<\/h2>\n

A Scotch Yoke Actuator is evaluated for integrated automated valve operation. The valve, actuator, mounting kit, controls and feedback devices are specified, assembled and function-tested as one tagged package.<\/p>\n

Use the name as a starting point. Technical approval still depends on high-output quarter-turn actuator torque profile and fail-safe spring design, the complete service envelope, installed interfaces and measurable acceptance.<\/p>\n

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Scotch Yoke<\/h3>\n

High-output quarter-turn actuator torque profile and fail-safe spring design. Define valve torque curve, supply pressure, fail direction, stroke time, mounting, environment and safety factor.<\/p>\n<\/div>\n

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Application envelope<\/h3>\n

Confirm every pressure, temperature, differential-pressure and cycling case for this Scotch Yoke Actuator.<\/p>\n<\/div>\n

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Installed interface<\/h3>\n

Verify ends, bore, flow direction, orientation, operator envelope, loads and maintenance access.<\/p>\n<\/div>\n

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Order-specific boundary<\/h3>\n

Website content is not tag-level certification. Suitability and supplied scope are established only by the accepted quotation, datasheet and drawing.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Specification workflow<\/div>\n

Close the questions hidden behind the product description<\/h2>\n

Record the question, accepted answer and proof so the Scotch Yoke Actuator proposal can be audited across disciplines.<\/p>\n

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Review area<\/th>\nEngineering question<\/th>\nRequired record<\/th>\n<\/tr>\n<\/thead>\n
Package responsibility<\/td>\nOne approved scope must identify valve, actuator, controls, tubing, wiring and documentation boundaries.<\/td>\nCapture the selection basis, approved deviation if any and the record used for acceptance.<\/td>\n<\/tr>\n
Safety action<\/td>\nFail state, trip logic, reset method and partial-stroke requirements must be defined.<\/td>\nFreeze the accepted value in the tag datasheet and verify it on the approved drawing.<\/td>\n<\/tr>\n
Interfaces<\/td>\nPower, air, signal, hazardous-area and communication interfaces require project coordination.<\/td>\nCapture the selection basis, approved deviation if any and the record used for acceptance.<\/td>\n<\/tr>\n
Testing<\/td>\nFunctional, fail-action and interface checks must use approved acceptance criteria.<\/td>\nState the measurable requirement and connect it to a drawing, procedure or test result.<\/td>\n<\/tr>\n
Scotch Yoke<\/td>\nDefine valve torque curve, supply pressure, fail direction, stroke time, mounting, environment and safety factor.<\/td>\nCapture the selection basis, approved deviation if any and the record used for acceptance.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Record exact standard designations and contract editions; resolve scope gaps and purchaser options before manufacture.<\/p>\n<\/div>\n<\/section>\n

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Application boundaries<\/div>\n

Failure exposures behind the nominal configuration<\/h2>\n

Component nameplates alone do not prove package performance; assembly-level testing and records are required. Also review orientation, transients, cycling, contamination, access and consequences of internal or external leakage.<\/p>\n

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Process envelope, contaminants, phase behavior and every case that can govern the Scotch Yoke Actuator<\/div>\n
Required valve function, operating frequency, shutoff criterion and failure consequence<\/div>\n
Nominal interface plus the flange\/weld details, flow direction, face-to-face and operator envelope<\/div>\n
Body, trim, seat, packing, bolting, lining or coating materials as applicable<\/div>\n
Worst-case torque\/thrust, cycle duty, travel time, fail behavior, minimum utility and control accessories<\/div>\n
Applicable standards, pressure tests, special tests, inspection points and final documents<\/div>\n<\/div>\n<\/div>\n<\/section>\n
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Evidence and quality<\/div>\n

Use order records\u2014not generic certificates\u2014for acceptance<\/h2>\n

A certificate or report is useful only when its scope traces to the actual tag, materials and configuration. Use the valve standards guide<\/a> to separate product, rating, dimensional, end-connection and test scope.<\/p>\n

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Design basis<\/h3>\n

Controlled configuration, interface drawing, calculations and closed technical clarifications.<\/p>\n<\/div>\n

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Material identity<\/h3>\n

Pressure and wetted-part traceability plus welding, heat treatment, hardness and inspection evidence.<\/p>\n<\/div>\n

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Inspection and tests<\/h3>\n

Approved ITP, procedures, calibrated instruments, results, witness records and NCR closeout.<\/p>\n<\/div>\n<\/div>\n

Actuator output must be checked throughout travel, not only at the endpoints.<\/p>\n

Do not infer certification or guaranteed performance from this page. Accept only the order-specific evidence required by the purchaser.<\/p>\n<\/div>\n<\/section>\n

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RFQ checklist<\/div>\n

Build a comparable inquiry for this valve configuration<\/h2>\n

A useful RFQ combines process data, piping class, construction and materials, operator\/actuator requirements, acceptance criteria and delivery documents.<\/p>\n

For a Scotch Yoke Actuator, also highlight high-output quarter-turn actuator torque profile and fail-safe spring design. List unresolved assumptions as deviations instead of embedding them silently in the offer.<\/p>\n

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Turn the datasheet into a clarified quotation basis<\/h2>\n

Provide the actual application; the response will separate confirmed requirements from assumptions and identify the checks still required.<\/p>\n<\/div>\n

Submit Your Datasheet<\/a>Compare Valve Automation Package Options<\/a><\/div>\n<\/div>\n<\/div>\n<\/section>\n
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Related engineering route<\/div>\n

Continue the selection review<\/h2>\n
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Product family<\/h3>\n

Compare the main constructions and selection boundaries in this valve family.<\/p>\n

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Project Valve Review<\/h3>\n

Resolve interacting pressure, temperature, corrosion, wear or project risks.<\/p>\n

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Testing and inspection<\/h3>\n

Define pressure-test scope, acceptance, instruments, witness points and records.<\/p>\n

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