{"id":991168,"date":"2025-10-06T06:41:14","date_gmt":"2025-10-06T06:41:14","guid":{"rendered":"https:\/\/zaes.es\/?p=991168"},"modified":"2025-10-06T06:43:21","modified_gmt":"2025-10-06T06:43:21","slug":"learn-to-select-and-maintain-instrumentation-manifolds-under-iso-15848-and-api-6d-technical-guide-for-zaes-leading-industrial-valves-manufacturer","status":"publish","type":"post","link":"https:\/\/zaes.es\/en\/aprende-a-elegir-y-mantener-manifolds-de-instrumentacion-segun-norma-iso-15848-y-api-6d-guia-tecnica-de-zaes-fabricante-lider-en-valvulas-industriales\/","title":{"rendered":"Learn how to select and maintain instrumentation manifolds according to ISO 15848 and API 6D. Technical guide from ZAES, a leading manufacturer of industrial valves."},"content":{"rendered":"
\"\"<\/p>\n

1\ufe0f<\/u>.<\/u> Introduction: why manifolds are key to industrial instrumentation:<\/u><\/h3>\n

In any industrial installation - be it a oil and gas<\/strong>, petrochemicals<\/strong>, energy<\/strong> o water treatment<\/strong>-The instrumentation manifolds<\/strong> are essential components.
\nIts main function is to isolating, purging and calibrating measuring instruments<\/strong> (such as pressure transmitters or flowmeters) without interrupting the process.<\/p>\n

At ZAES<\/strong>as manufacturer of industrial valves and manifolds<\/strong> with decades of experience, we've put together this technical guide to help you to choosing, installing and maintaining<\/strong> correctly an instrumentation manifold.<\/p>\n

Here you will find selection criteria, preventive maintenance, suitable materials and international standards that guarantee the safety and reliability<\/strong> of the system.<\/p>\n

2\ufe0f<\/u>.<\/u> What is an instrumentation manifold:<\/u><\/h3>\n

A instrumentation manifold<\/strong> is a set of interconnected valves to control the flow of fluids to a measuring instrument.
\nIt aims to facilitate operations such as:<\/p>\n

    \n
  • Isolation<\/strong> of the instrument without stopping the process line.<\/li>\n
  • Purging or draining<\/strong><\/li>\n
  • Pressure calibration and equalisation<\/strong>.<\/li>\n
  • Maintenance or replacement<\/strong> of measuring equipment.<\/li>\n<\/ul>\n

    3\ufe0f<\/u>.<\/u> Manifold types: 2, 3 and 5 valves:<\/u><\/h3>\n

     <\/p>\n

    - 2-valve manifold<\/strong><\/p>\n

      \n
    • Used in measurements of static pressure<\/strong> or level.<\/li>\n
    • It consists of an isolation valve and a bleed valve.<\/li>\n
    • Ideal for pressure transmitters in general applications.<\/li>\n<\/ul>\n

      - 3-valve manifold<\/strong><\/p>\n

        \n
      • Designed for differential pressure<\/strong>.<\/li>\n
      • It includes two isolation valves and one equalisation valve.<\/li>\n
      • Allows calibration without disassembling the instrument, balancing both pressure lines.<\/li>\n<\/ul>\n

        -\u00a0 5-valve manifold<\/strong><\/p>\n

          \n
        • Recommended when the following are required frequent calibrations<\/strong>.<\/li>\n
        • It has two isolation valves, one equalisation valve and two purge valves.<\/li>\n
        • Facilitates maintenance and cleaning tasks in complete safety.<\/li>\n<\/ul>\n

          4\ufe0f<\/u>.<\/u> Most commonly used materials:<\/u><\/h3>\n

           <\/p>\n\n\n\n\n\n\n\n\n\n
          Material<\/strong><\/td>\nTypical application<\/strong><\/td>\nFeatures<\/strong><\/td>\n<\/tr>\n<\/thead>\n
          316L stainless steel<\/strong><\/td>\nWater, steam, inert gases<\/td>\nHigh corrosion resistance, good weldability and durability.<\/td>\n<\/tr>\n
          Hastelloy\u00ae C-276<\/strong><\/td>\nAcids, strong oxidants and highly corrosive media<\/td>\nExcellent chemical and thermal resistance.<\/td>\n<\/tr>\n
          Monel\u00ae 400<\/strong><\/td>\nFluids with chlorides, hydrocarbons and marine environments<\/td>\nHigh resistance to corrosion, cavitation and fatigue.<\/td>\n<\/tr>\n
          Duplex (UNS S32205 \/ 1.4462)<\/strong><\/td>\nSeawater, pulp and paper, chemical applications<\/td>\nHigh mechanical and chloride corrosion resistance, ideal for demanding services.<\/td>\n<\/tr>\n
          Super Duplex (UNS S32750 \/ 1.4410)<\/strong><\/td>\nMarine environments, brine, offshore plants or desalination plants<\/td>\nMaximum resistance to stress corrosion and excellent high pressure behaviour.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          <\/h2>\n

          ZAES Council:<\/u><\/strong><\/em> for services with H\u2082S or corrosive environments<\/strong>Always check the compatibility of the material with the standard. NACE MR0175 \/ ISO 15156<\/strong>.<\/h2>\n

          5\ufe0f<\/u>.<\/u> Technical standards to be met by an industrial manifold:<\/u><\/h3>\n

          Complying with international standards ensures the safety, watertightness and reliability<\/strong> of valves and manifolds.
          \nThese are the most relevant in the sector:<\/p>\n

            \n
          • ISO 15848<\/strong> \u2192 Fugitive emissions in industrial valves.<\/li>\n
          • API 6D<\/strong> \u2192 Design and testing of oil and gas pipeline valves.<\/li>\n
          • EN 12266-1 \/ ISO 5208<\/strong> \u2192 Tightness tests and acceptance criteria.<\/li>\n
          • MSS SP-99<\/strong> \u2192 Manifolds and instrumentation valves: pressures, connections and sizes.<\/li>\n<\/ul>\n

            6\ufe0f<\/u>. <\/u>How to choose the right manifold:<\/u><\/h3>\n

            Before defining the model, analyse:<\/p>\n

              \n
            1. Type of measurement<\/strong> \u2192 static or differential.<\/li>\n
            2. Working pressure and temperature<\/strong>.<\/li>\n
            3. Type of fluid<\/strong> (gaseous, liquid or corrosive).<\/li>\n
            4. Mounting configuration<\/strong> (direct to transmitter or remote with tubing).<\/li>\n
            5. Applicable standards<\/strong> to the project (API, ISO, PED, ATEX, etc.).<\/li>\n<\/ol>\n

              Pro tip:<\/u><\/strong><\/em> an oversized manifold or a manifold with unsuitable material can lead to leaks, loss of accuracy or maintenance cost overruns.<\/p>\n

              7\ufe0f<\/u>.<\/u> Preventive maintenance and good practice:<\/u><\/h3>\n

              Regular maintenance prevents leaks, failures and downtime.
              \nZAES recommends:<\/p>\n

                \n
              • Visual inspection<\/strong> every 6 months.<\/li>\n
              • Tightness tests<\/strong> in accordance with EN 12266-1<\/strong>.<\/li>\n
              • Cleaning of internal ducts<\/strong> and verification of entries.<\/li>\n
              • Lubrication<\/strong> of stems and seals with compatible products.<\/li>\n
              • Replacement of seals<\/strong> and components according to preventive plan.<\/li>\n<\/ul>\n

                In addition, in critical processes, it is advisable to perform a transmitter calibration<\/strong> after any intervention on the manifold.<\/p>\n

                8\ufe0f<\/u>.<\/u> Safety and environment: fugitive emissions:<\/u><\/h3>\n

                The fugitive emissions<\/strong> are small leaks of gases escaping through gaskets or joints.
                \nComplying with the standard ISO 15848<\/strong> ensures that the ZAES manifolds and valves reduce these emissions, contributing to the sustainability and environmental safety<\/strong>.<\/p>\n

                9\ufe0f<\/u>.<\/u> ZAES: experience and reliability in industrial valves:<\/u><\/h3>\n

                With more than 50 years of experience, ZAES<\/strong> is positioned as European benchmark for industrial valves and instrumentation manifolds<\/strong>.
                \nThe company offers solutions designed and manufactured to the highest standards of quality, combining in-house engineering<\/strong>, European production<\/strong> y personalised technical advice<\/strong>.<\/p>\n

                In a market where giants such as Emerson (Fisher)<\/strong>, Flowserve<\/strong>, Valmet (Neles)<\/strong>, KSB<\/strong> o Swagelok<\/strong>ZAES stands out for its proximity, flexibility and speed of supply<\/strong> -in addition to its commitment to certified quality.<\/p>\n

                10\ufe0f<\/u>.<\/u> Conclusion: precision, security and confidence:<\/u><\/h3>\n

                Selecting the right manifold is more than a question of a catalogue:
                \nis a technical decision that has a direct impact on the safety, efficiency and maintenance<\/strong> of the entire plant.<\/p>\n

                With this guide, ZAES reaffirms its commitment to the precision engineering<\/strong>the operational reliability<\/strong> and the customised technical support<\/strong>.<\/div>\n

                <\/p>","protected":false},"excerpt":{"rendered":"

                1\ufe0f. Introduction: why manifolds are key to industrial instrumentation: In any industrial facility \u2014 be it in the oil and gas, petrochemical, energy or water treatment sectors \u2014 instrumentation manifolds are essential components. Their main function is to isolate, purge and calibrate measuring instruments (such as pressure transmitters or flowmeters) without the need to\u2026<\/p>","protected":false},"author":1,"featured_media":991169,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[129,130],"tags":[],"class_list":["post-991168","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-noticias"],"yoast_head":"\nAprende a elegir y mantener manifolds de instrumentaci\u00f3n seg\u00fan norma ISO 15848 y API 6D. Gu\u00eda t\u00e9cnica de ZAES, fabricante l\u00edder en v\u00e1lvulas industriales. - V\u00e1lvulas de Seguridad - Zaes<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zaes.es\/en\/learn-to-select-and-maintain-instrumentation-manifolds-under-iso-15848-and-api-6d-technical-guide-for-zaes-leading-industrial-valves-manufacturer\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aprende a elegir y mantener manifolds de instrumentaci\u00f3n seg\u00fan norma ISO 15848 y API 6D. Gu\u00eda t\u00e9cnica de ZAES, fabricante l\u00edder en v\u00e1lvulas industriales. - V\u00e1lvulas de Seguridad - Zaes\" \/>\n<meta property=\"og:description\" content=\"1\ufe0f. Introducci\u00f3n: por qu\u00e9 los manifolds son clave en la instrumentaci\u00f3n industrial: En cualquier instalaci\u00f3n industrial \u2014ya sea de petr\u00f3leo y gas, petroqu\u00edmica, energ\u00eda o tratamiento de agua\u2014, los manifolds de instrumentaci\u00f3n son componentes esenciales. Su funci\u00f3n principal es aislar, purgar y calibrar instrumentos de medici\u00f3n (como transmisores de presi\u00f3n o caudal\u00edmetros) sin necesidad de...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zaes.es\/en\/learn-to-select-and-maintain-instrumentation-manifolds-under-iso-15848-and-api-6d-technical-guide-for-zaes-leading-industrial-valves-manufacturer\/\" \/>\n<meta property=\"og:site_name\" content=\"V\u00e1lvulas de Seguridad - Zaes\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-06T06:41:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-06T06:43:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/zaes.es\/wp-content\/uploads\/2025\/10\/Guia-Completa-sobre-la-Seleccion.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"740\" \/>\n\t<meta property=\"og:image:height\" content=\"493\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"acceso_zaes\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"acceso_zaes\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/zaes.es\\\/en\\\/aprende-a-elegir-y-mantener-manifolds-de-instrumentacion-segun-norma-iso-15848-y-api-6d-guia-tecnica-de-zaes-fabricante-lider-en-valvulas-industriales\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/zaes.es\\\/en\\\/aprende-a-elegir-y-mantener-manifolds-de-instrumentacion-segun-norma-iso-15848-y-api-6d-guia-tecnica-de-zaes-fabricante-lider-en-valvulas-industriales\\\/\"},\"author\":{\"name\":\"acceso_zaes\",\"@id\":\"https:\\\/\\\/zaes.es\\\/#\\\/schema\\\/person\\\/68a7ab1d0dc5de2a6e089449a4833087\"},\"headline\":\"Aprende a elegir y mantener manifolds de instrumentaci\u00f3n seg\u00fan norma ISO 15848 y API 6D. 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