{"id":10857,"date":"2022-12-16T10:48:16","date_gmt":"2022-12-16T02:48:16","guid":{"rendered":"https:\/\/limegreen-okapi-448594.hostingersite.com\/?post_type=product&p=10857"},"modified":"2026-07-29T17:12:08","modified_gmt":"2026-07-29T09:12:08","slug":"pneumatic-butterfly-valve","status":"publish","type":"product","link":"https:\/\/raymonvalve.com\/ar\/product\/pneumatic-butterfly-valve\/","title":{"rendered":"\u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0647\u0648\u0627\u0626\u064a"},"content":{"rendered":"
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Engineering scope<\/div>\n

Define the application boundary for Pneumatic Butterfly Valve<\/h2>\n

A Pneumatic Butterfly Valve is evaluated for compact quarter-turn isolation or regulation. A disc rotates within the body and piping bore. Offset geometry, seat construction, shaft support, flange interface and actuator torque determine sealing, wear and controllability.<\/p>\n

Use the name as a starting point. Technical approval still depends on air-operated actuator sizing, fail action, supply pressure and accessory package, the complete service envelope, installed interfaces and measurable acceptance.<\/p>\n

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Pneumatic<\/h3>\n

Air-operated actuator sizing, fail action, supply pressure and accessory package. State minimum\/normal air pressure, fail state, stroke time, duty, solenoid, positioner, switches and tubing requirements.<\/p>\n<\/div>\n

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Application envelope<\/h3>\n

Confirm every pressure, temperature, differential-pressure and cycling case for this Pneumatic Butterfly Valve.<\/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

Build the technical requirement before approving the model<\/h2>\n

Record the question, accepted answer and proof so the Pneumatic Butterfly Valve 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
Disc and seat geometry<\/td>\nConcentric, double-offset or triple-offset construction must match shutoff and temperature duty.<\/td>\nFreeze the accepted value in the tag datasheet and verify it on the approved drawing.<\/td>\n<\/tr>\n
Piping interface<\/td>\nWafer, lug, flanged or welded bodies require compatible flange dimensions, gaskets and disc clearance.<\/td>\nCapture the selection basis, approved deviation if any and the record used for acceptance.<\/td>\n<\/tr>\n
Torque basis<\/td>\nSeating, bearing, packing and hydrodynamic torque must be checked at every operating case.<\/td>\nFreeze the accepted value in the tag datasheet and verify it on the approved drawing.<\/td>\n<\/tr>\n
Flow duty<\/td>\nOn-off, throttling, minimum opening and velocity limits should be stated.<\/td>\nFreeze the accepted value in the tag datasheet and verify it on the approved drawing.<\/td>\n<\/tr>\n
Pneumatic<\/td>\nState minimum\/normal air pressure, fail state, stroke time, duty, solenoid, positioner, switches and tubing requirements.<\/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

A standard title alone is not acceptance. Map its scope, edition and required evidence to the valve tag.<\/p>\n<\/div>\n<\/section>\n

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Application boundaries<\/div>\n

Where this configuration may fit\u2014and what can make it fail<\/h2>\n

Check disc clearance, installation orientation and transient loads; a nominal flange fit does not prove that the disc can open safely. Also review orientation, transients, cycling, contamination, access and consequences of internal or external leakage.<\/p>\n

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Fluid composition plus minimum, normal, maximum, startup and upset cases for the Pneumatic Butterfly Valve<\/div>\n
Isolation\/control\/non-return function, frequency, directionality and measurable shutoff acceptance<\/div>\n
Nominal interface plus the flange\/weld details, flow direction, face-to-face and operator envelope<\/div>\n
Corrosion and wear basis with exact body, trim, sealing, bolting, overlay, lining or coating materials<\/div>\n
Worst-case torque\/thrust, cycle duty, travel time, fail behavior, minimum utility and control accessories<\/div>\n
Exact standards and editions, ITP points, material\/NDE\/pressure\/leakage tests and turnover index<\/div>\n<\/div>\n<\/div>\n<\/section>\n
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Evidence and quality<\/div>\n

Define the manufacturing and test proof before release<\/h2>\n

Generic examples may explain capability but cannot close an order requirement unless they apply to the delivered valve. 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

Approved datasheet, drawing, bill of materials, rating basis and documented deviations.<\/p>\n<\/div>\n

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Material identity<\/h3>\n

Component certificates, heat or lot traceability, heat treatment, hardness and required PMI or NDE.<\/p>\n<\/div>\n

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Inspection and tests<\/h3>\n

Hold\/witness records, material\/NDE\/pressure\/leakage\/functional results and nonconformance closure.<\/p>\n<\/div>\n<\/div>\n

Size at minimum available supply pressure and maximum valve load.<\/p>\n

Qualification, testing and material suitability are conditional on the approved scope and supplied records for the actual configuration.<\/p>\n<\/div>\n<\/section>\n

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RFQ checklist<\/div>\n

Data to send for a technically complete quotation<\/h2>\n

Provide a controlled valve list or datasheet covering every operating case, interface, material, operation, standard, inspection, test and document requirement.<\/p>\n

For a Pneumatic Butterfly Valve, also highlight air-operated actuator sizing, fail action, supply pressure and accessory package. Identify missing inputs and provisional selections so they can be closed before purchase order release.<\/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 Butterfly Valve Options<\/a><\/div>\n<\/div>\n<\/div>\n<\/section>\n
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Related engineering route<\/div>\n

Use the related pages to close remaining decisions<\/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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