{"id":991191,"date":"2026-02-02T08:42:05","date_gmt":"2026-02-02T08:42:05","guid":{"rendered":"https:\/\/zaes.es\/?p=991191"},"modified":"2026-02-02T08:42:05","modified_gmt":"2026-02-02T08:42:05","slug":"we-present-our-range-of-siphon-tubes-for-zaes-pressure-gauges-designed-to-protect-instruments-in-steam-and-high-temperature-lines","status":"publish","type":"post","link":"https:\/\/zaes.es\/en\/presentamos-nuestra-gama-de-tubos-de-sifon-para-manometros-zaes-disenados-para-proteger-instrumentos-en-lineas-de-vapor-y-altas-temperaturas\/","title":{"rendered":"Introducing our range of ZAES pressure gauge siphon tubes designed to protect instruments in steam and high temperature lines."},"content":{"rendered":"<div class=\"vgblk-rw-wrapper limit-wrapper\"><img decoding=\"async\" class=\"alignnone size-full wp-image-991192\" src=\"https:\/\/zaes.es\/wp-content\/uploads\/2026\/02\/Zaes-Tubos-de-sifon-intrumentacion-siphon-tubes-for-instrumentation.jpg\" alt=\"\" width=\"100%\" height=\"auto\" srcset=\"https:\/\/zaes.es\/wp-content\/uploads\/2026\/02\/Zaes-Tubos-de-sifon-intrumentacion-siphon-tubes-for-instrumentation.jpg 1000w, https:\/\/zaes.es\/wp-content\/uploads\/2026\/02\/Zaes-Tubos-de-sifon-intrumentacion-siphon-tubes-for-instrumentation-300x211.jpg 300w, https:\/\/zaes.es\/wp-content\/uploads\/2026\/02\/Zaes-Tubos-de-sifon-intrumentacion-siphon-tubes-for-instrumentation-768x540.jpg 768w, https:\/\/zaes.es\/wp-content\/uploads\/2026\/02\/Zaes-Tubos-de-sifon-intrumentacion-siphon-tubes-for-instrumentation-18x12.jpg 18w, https:\/\/zaes.es\/wp-content\/uploads\/2026\/02\/Zaes-Tubos-de-sifon-intrumentacion-siphon-tubes-for-instrumentation-700x492.jpg 700w, https:\/\/zaes.es\/wp-content\/uploads\/2026\/02\/Zaes-Tubos-de-sifon-intrumentacion-siphon-tubes-for-instrumentation-466x328.jpg 466w, https:\/\/zaes.es\/wp-content\/uploads\/2026\/02\/Zaes-Tubos-de-sifon-intrumentacion-siphon-tubes-for-instrumentation-933x656.jpg 933w, https:\/\/zaes.es\/wp-content\/uploads\/2026\/02\/Zaes-Tubos-de-sifon-intrumentacion-siphon-tubes-for-instrumentation-350x246.jpg 350w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>The pressure measurement in <strong>steam<\/strong>, <strong>thermal oils<\/strong> y <strong>high temperature fluids<\/strong> requires special protection to prevent damage to the instruments. Bourdon tube gauges are sensitive to excessive heat, as their internal mechanism is designed to work within safe thermal ranges. When the instrument is directly exposed to fluids above its limit, it suffers deformation, loss of accuracy and even irreversible mechanical failure.<\/p>\n<p>To solve this industrial challenge, <strong>ZAES introduces its new range of siphon tubes<\/strong>, also known as <em>siphons for pressure gauges<\/em>, <em>pigtail siphons<\/em> o <em>cooling tubes<\/em>, These are essential to thermally insulate the instrument and ensure stable measurement over long periods of operation.<\/p>\n<p><strong>What is a pressure gauge siphon tube and why is it indispensable in steam?<\/strong><\/p>\n<p>Siphon tubes are fittings designed to create a <strong>condensate chamber<\/strong> between the process and the pressure gauge. This chamber is filled with a small volume of condensed fluid (usually water in the case of steam), which acts as a <strong>natural thermal insulator<\/strong>.<\/p>\n<p><strong>What happens if a siphon is not installed?<\/strong><\/p>\n<p>Without a siphon:<\/p>\n<ul>\n<li>The saturated or superheated vapour comes into direct contact with the pressure gauge.<\/li>\n<li>The Bourdon tube heats up above its permissible range.<\/li>\n<li>The internal mechanism is deformed affecting the calibration.<\/li>\n<li>Mechanical wear is accelerated.<\/li>\n<li>The instrument may break due to thermal shock.<\/li>\n<li>The reading becomes unstable or erroneous.<\/li>\n<\/ul>\n<p>For this reason, <strong>international standards and gauge manufacturers recommend the mandatory use of siphons in all steam installations.<\/strong>.<\/p>\n<p><strong>The ZAES range of siphon tubes: industrial solutions for steam and high temperatures<\/strong><\/p>\n<p>ZAES has developed a range of siphons designed to offer stable, durable thermal protection compatible with modern installations. This product family comprises:<\/p>\n<ol>\n<li><strong> U-type siphons\u201c<\/strong><\/li>\n<\/ol>\n<p>Ideal for:<\/p>\n<ul>\n<li>vertical lines,<\/li>\n<li>boilers,<\/li>\n<li>saturated steam networks,<\/li>\n<li>installations where the instrument is fixed to a wall or panel.<\/li>\n<\/ul>\n<p>Its shape generates a large condensate chamber, improving thermal insulation.<\/p>\n<ol start=\"2\">\n<li><strong> Pigtail traps (spiral)<\/strong><\/li>\n<\/ol>\n<p>These siphons have a spiral geometry that:<\/p>\n<ul>\n<li>absorbs vibrations,<\/li>\n<li>prolongs the path of the hot fluid,<\/li>\n<li>offers superior heat dissipation.<\/li>\n<\/ul>\n<p>They are commonly used in:<\/p>\n<ul>\n<li>industrial furnaces,<\/li>\n<li>superheated steam,<\/li>\n<li>turbines,<\/li>\n<li>high pressure steam collectors.<\/li>\n<\/ul>\n<ol start=\"3\">\n<li><strong> Straight models for special installations<\/strong><\/li>\n<\/ol>\n<p>Some applications require linear siphons to avoid obstacles or to integrate into confined spaces. ZAES offers this type for compact installations or distributed instrumentation.<\/p>\n<p><strong>Top quality industrial materials<\/strong><\/p>\n<p>ZAES siphons are made of two key materials:<\/p>\n<ul>\n<li><strong>Galvanised or carbon steel<\/strong><\/li>\n<\/ul>\n<p>Suitable for standard steam, low-medium pressure boilers and applications where corrosive fluids are not present.<\/p>\n<ul>\n<li><strong>Stainless steel AISI 304 \/ 316<\/strong><\/li>\n<\/ul>\n<p>Recommended for:<\/p>\n<ul>\n<li>superheated steam,<\/li>\n<li>thermal oils,<\/li>\n<li>chemical processes,<\/li>\n<li>food plants,<\/li>\n<li>corrosive atmospheres,<\/li>\n<li>marine environments.<\/li>\n<\/ul>\n<p>These variants guarantee mechanical strength, durability and operational safety even under extreme conditions.<\/p>\n<p><strong>Full compatibility: BSP and NPT connections<\/strong><\/p>\n<p>In industrial practice, not all installations share the same thread standard. ZAES has therefore launched its siphons in two versions:<\/p>\n<ul>\n<li><strong>BSP thread (G)<\/strong> - European standard.<\/li>\n<li><strong>NPT thread<\/strong> - standard used in America and in imported equipment.<\/li>\n<\/ul>\n<p>This versatility avoids adapters, leakage and compatibility errors, facilitating direct integration into new or existing instrumentation.<\/p>\n<p><strong>Operational advantages of ZAES siphon tubes<\/strong><\/p>\n<p>ZAES siphons are designed to offer both technical and operational benefits:<\/p>\n<ol>\n<li><strong> Full thermal protection<\/strong><\/li>\n<\/ol>\n<p>The condensate inside the siphon acts as a barrier between the steam and the pressure gauge, preventing the instrument from reaching critical temperatures.<\/p>\n<ol start=\"2\">\n<li><strong> More stable readings<\/strong><\/li>\n<\/ol>\n<p>By avoiding thermal expansion of the Bourdon tube, the gauge needle remains stable and accurate.<\/p>\n<ol start=\"3\">\n<li><strong> Longer service life of the pressure gauge<\/strong><\/li>\n<\/ol>\n<p>A thermally protected pressure gauge can last from <strong>3 to 5 times more<\/strong> than one exposed directly to steam.<\/p>\n<ol start=\"4\">\n<li><strong> Reduced need for recalibration<\/strong><\/li>\n<\/ol>\n<p>The protected instrumentation suffers less thermal stress, maintaining its calibration curve longer.<\/p>\n<ol start=\"5\">\n<li><strong> Quick and universal installation<\/strong><\/li>\n<\/ol>\n<p>No special tools or welding are required: it is simply inserted between the line and the instrument.<\/p>\n<p><strong>Where are ZAES siphons used?<\/strong><\/p>\n<p>Siphons are an essential part of any plant working with steam:<\/p>\n<ul>\n<li><strong>Industrial boilers<\/strong><\/li>\n<\/ul>\n<p>From small heating boilers to firetube or watertube boilers.<\/p>\n<ul>\n<li><strong>Steam distribution networks<\/strong><\/li>\n<\/ul>\n<p>In textile, food, chemical, pharmaceutical, etc. factories.<\/p>\n<ul>\n<li><strong>Superheated steam systems<\/strong><\/li>\n<\/ul>\n<p>Where extreme heat can destroy instrumentation in minutes.<\/p>\n<ul>\n<li><strong>Steam turbines<\/strong><\/li>\n<\/ul>\n<p>Where pressure stability is critical.<\/p>\n<ul>\n<li><strong>Chemical and petrochemical plants<\/strong><\/li>\n<\/ul>\n<p>Hot fluids, aggressive atmospheres and constant thermal variations.<\/p>\n<ul>\n<li><strong>Food industry<\/strong><\/li>\n<\/ul>\n<p>CIP\/SIP processes, steam sterilisation, pasteurisation.<\/p>\n<p>In each of these applications, the siphon is essential to avoid catastrophic gauge failures.<\/p>\n<p><strong>ZAES and the importance of a complete instrumentation ecosystem<\/strong><\/p>\n<p>Siphon tubes are part of a larger instrument protection strategy.<br \/>\nZAES recommends combining:<\/p>\n<ul>\n<li><strong>Siphon<\/strong> (thermal protection)<\/li>\n<li><strong>Pressure cushioning<\/strong> (mechanical protection)<\/li>\n<li><strong>Valve for pressure gauge<\/strong> (safe maintenance)<\/li>\n<\/ul>\n<p>This combination creates a robust and stable system that protects the pressure gauge in all dimensions:<\/p>\n<ul>\n<li>temperature,<\/li>\n<li>pressure,<\/li>\n<li>vibration,<\/li>\n<li>maintenance.<\/li>\n<\/ul>\n<p><strong>ZAES versus international manufacturers<\/strong><\/p>\n<p>The new range positions ZAES as an efficient alternative to brands such as:<\/p>\n<ul>\n<li>WIKA<\/li>\n<li>Badotherm<\/li>\n<li>Winters<\/li>\n<li>Ashcroft<\/li>\n<\/ul>\n<p>Offering:<\/p>\n<ul>\n<li>competitive prices,<\/li>\n<li>immediate availability,<\/li>\n<li>European design,<\/li>\n<li>BSP\/NPT compatibility,<\/li>\n<li>specialised technical assistance,<\/li>\n<li>high-strength materials.<\/li>\n<\/ul>\n<p><strong>In a nutshell: ZAES siphons, indispensable protection for steam lines.<\/strong><\/p>\n<p>The <strong>ZAES siphon tubes<\/strong> represent an indispensable solution for any installation handling steam or hot fluids. Their robust design, thermal insulation capability and compatibility with industrial standards make them a key part of modern instrumentation.<\/p>\n<p>With this new range, ZAES reinforces its leadership in the sector and offers industries a reliable tool to ensure accurate and durable pressure measurements.<\/p><\/div>\n<p><!-- .vgblk-rw-wrapper --><\/p>","protected":false},"excerpt":{"rendered":"<p>La medici\u00f3n de presi\u00f3n en sistemas de vapor, aceites t\u00e9rmicos y fluidos de alta temperatura requiere una protecci\u00f3n especial para evitar da\u00f1os en los instrumentos. Los man\u00f3metros de tubo Bourdon son sensibles al calor excesivo, ya que su mecanismo interno est\u00e1 dise\u00f1ado para trabajar dentro de rangos t\u00e9rmicos seguros. Cuando el instrumento se expone directamente&#8230;<\/p>","protected":false},"author":1,"featured_media":991192,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[129,130],"tags":[],"class_list":["post-991191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-noticias"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Presentamos nuestra gama de tubos de sif\u00f3n para man\u00f3metros ZAES dise\u00f1ados para proteger instrumentos en l\u00edneas de vapor y altas temperaturas - 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\/we-present-our-range-of-siphon-tubes-for-zaes-pressure-gauges-designed-to-protect-instruments-in-steam-and-high-temperature-lines\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Presentamos nuestra gama de tubos de sif\u00f3n para man\u00f3metros ZAES dise\u00f1ados para proteger instrumentos en l\u00edneas de vapor y altas temperaturas - V\u00e1lvulas de Seguridad - Zaes\" \/>\n<meta property=\"og:description\" content=\"La medici\u00f3n de presi\u00f3n en sistemas de vapor, aceites t\u00e9rmicos y fluidos de alta temperatura requiere una protecci\u00f3n especial para evitar da\u00f1os en los instrumentos. 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Los man\u00f3metros de tubo Bourdon son sensibles al calor excesivo, ya que su mecanismo interno est\u00e1 dise\u00f1ado para trabajar dentro de rangos t\u00e9rmicos seguros. 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