{"id":13589,"date":"2026-07-27T21:52:13","date_gmt":"2026-07-27T13:52:13","guid":{"rendered":"https:\/\/raymonvalve.com\/product\/trunnion-mounted-ball-valve\/"},"modified":"2026-07-27T22:36:06","modified_gmt":"2026-07-27T14:36:06","slug":"trunnion-mounted-ball-valve","status":"publish","type":"product","link":"https:\/\/raymonvalve.com\/ru\/product\/trunnion-mounted-ball-valve\/","title":{"rendered":"\u0428\u0430\u0440\u043e\u0432\u043e\u0439 \u043a\u0440\u0430\u043d \u0441 \u0446\u0430\u043f\u0444\u043e\u0439"},"content":{"rendered":"
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Engineering scope<\/div>\n

What controls a responsible Trunnion Mounted Ball Valve selection<\/h2>\n

A Trunnion Mounted Ball Valve is evaluated for quarter-turn isolation or characterized rotary control. A bored ball rotates between seats. The selected bore, ball support, seat loading, stem sealing and cavity-relief arrangement determine pressure loss, operating torque and shutoff behavior.<\/p>\n

Before quoting this configuration, close supported-ball construction for higher differential load, larger size or pipeline duty and record all process, mechanical, operating and documentation assumptions.<\/p>\n

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Trunnion<\/strong><\/p>\n

Supported-ball construction for higher differential load, larger size or pipeline duty. Define DBB\/DIB philosophy, seat injection, cavity relief, bore, stem retention, drains and actuator torque.<\/p>\n<\/div>\n

Order-specific boundary<\/strong><\/p>\n

Published information supports initial screening; final size, class, materials, trim, operation, tests and documents are fixed in approved order records.<\/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

The table turns application inputs for Trunnion Mounted Ball Valve into review points and tag-linked evidence.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Review area<\/th>\nEngineering question<\/th>\nRequired record<\/th>\n<\/tr>\n<\/thead>\n
Ball support<\/td>\nFloating or trunnion-supported construction must suit size, pressure and differential load.<\/td>\nResolve the open point before release and retain tag-specific evidence in the final dossier.<\/td>\n<\/tr>\n
Bore<\/td>\nFull, reduced or characterized bore must match flow, pigging and pressure-drop requirements.<\/td>\nResolve the open point before release and retain tag-specific evidence in the final dossier.<\/td>\n<\/tr>\n
Seat system<\/td>\nSoft, resilient or metal seating is selected from temperature, media, solids, cycling and leakage criteria.<\/td>\nMake this requirement auditable through the order datasheet, design review and inspection plan.<\/td>\n<\/tr>\n
Cavity behavior<\/td>\nPressure relief direction, double-block requirements, vents and drains must be defined.<\/td>\nState the measurable requirement and connect it to a drawing, procedure or test result.<\/td>\n<\/tr>\n
Trunnion<\/td>\nDefine DBB\/DIB philosophy, seat injection, cavity relief, bore, stem retention, drains and actuator torque.<\/td>\nResolve the open point before release and retain tag-specific evidence in the final dossier.<\/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

Application limits to examine before technical approval<\/h2>\n

Do not select from line size and pressure class alone; differential pressure, seat load, cavity pressure and operating torque can govern the design. Installed behavior can be governed by flow dynamics, deposits, operating frequency, maintenance access and the response to abnormal conditions.<\/p>\n

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Complete medium composition, pressure, temperature and flow cases for the Trunnion Mounted Ball 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
Operator and actuator load basis, safety factor, override, signals, switches, interlocks and package test<\/div>\n
Product, rating, dimensions, ends and test requirements plus special qualification and tag-linked evidence<\/div>\n<\/div>\n<\/div>\n<\/section>\n
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Evidence and quality<\/div>\n

Request evidence that matches the supplied design<\/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

Tag requirements, design review, materials list and approved exception register.<\/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

Inspection releases, controlled test methods, instrument identity, measurements and final acceptance.<\/p>\n<\/div>\n<\/div>\n

Seat directionality and cavity-pressure behavior must be shown on the approved drawing.<\/p>\n

No statement here is an unqualified certification claim; standards, editions and evidence remain subject to project review.<\/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 Trunnion Mounted Ball Valve, also highlight supported-ball construction for higher differential load, larger size or pipeline duty. Identify missing inputs and provisional selections so they can be closed before purchase order release.<\/p>\n

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Ask for a configuration tied to the real duty<\/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 Ball 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

<\/a><\/p>\n

Project Valve Review<\/h3>\n

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

<\/a><\/p>\n

Testing and inspection<\/h3>\n

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

<\/a><\/div>\n<\/div>\n<\/section>\n

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FAQ<\/div>\n

Trunnion Mounted Ball Valve questions<\/h2>\n
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\nWhat information is required to select a Trunnion Mounted Ball Valve?<\/summary>\n

Provide the medium and composition, all pressure and temperature cases, nominal size, flow or differential pressure where relevant, required function, end connections, materials, shutoff criterion, operation, standards, inspection and documentation. For this configuration, the review must specifically address supported-ball construction for higher differential load, larger size or pipeline duty.<\/p>\n<\/details>\n

\nWhich standards apply to a Trunnion Mounted Ball Valve?<\/summary>\n

The answer depends on the product construction, project jurisdiction and purchaser specification. A product standard may cover design scope while separate standards govern pressure-temperature rating, dimensions, ends, pressure testing, fire safety, emissions or materials. Seat directionality and cavity-pressure behavior must be shown on the approved drawing.<\/p>\n<\/details>\n

\nHow should Trunnion Mounted Ball Valve pressure and leakage testing be specified?<\/summary>\n

Define the test configuration and measurable acceptance rather than requesting a generic factory test. Include calibrated instruments, valve position, pressure direction and tag-linked results.<\/p>\n<\/details>\n

\nCan a Trunnion Mounted Ball Valve be supplied with an actuator?<\/summary>\n

Automation requires more than matching a mounting flange. Verify maximum load through travel, minimum supply, coupling\/stem capacity, stops, controls and required failure response.<\/p>\n<\/details>\n

\nWhen should a Trunnion Mounted Ball Valve not be selected?<\/summary>\n

Do not select it when its qualified construction cannot satisfy the process, shutoff, materials, dynamics, maintenance or documentation requirements. Do not select from line size and pressure class alone; differential pressure, seat load, cavity pressure and operating torque can govern the design. The alternative should be chosen only after comparing the complete service duty.<\/p>\n<\/details>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n