Malleable cast iron fittings have been part of the basic equipment of professional pipe installations for decades. Anyone planning, installing or purchasing in the HVAC sector can hardly avoid this material. And yet knowledge about properties, standards and application limits is often incomplete. This article explains what malleable cast iron fittings are, where they show their strengths and what to look out for when selecting them. <\/p>\n\n
Malleable cast iron is an iron material that is produced from white pig iron using a special heat treatment process. The result is a material with high toughness, good machinability and excellent compressive strength. Compared to gray cast iron, malleable cast iron is significantly less brittle and can be machined cleanly with taps. Compared to brass, it offers a more favorable price-performance ratio for certain applications and a higher mechanical load capacity for large nominal widths. <\/p>\n\n
Fittings made from this material are usually manufactured with external threads in accordance with DIN EN 10242. This standard defines the dimensions, the thread design and the pressure levels for which the fittings are tested. For the user, this means that malleable cast iron fittings from different manufacturers are interchangeable in accordance with the standard, provided they are based on the same thread standard. <\/p>\n\n
Malleable cast iron fittings are hot-dip galvanized as standard. The zinc coating protects the iron material from corrosion and significantly extends its service life. The coating thickness is crucial here: the standard defines minimum values, but not all products on the market meet these with the same effort. <\/p>\n\n
HS Fittings<\/a> uses a galvanized layer on its galvanized malleable cast iron fittings that is significantly higher than the standard specifications. This increases resistance to moisture and aggressive environmental conditions and makes these fittings particularly suitable for industrial applications and underground installations where there is increased corrosion pressure. <\/p>\n Get more information now.<\/a><\/p><\/blockquote>\n\n Malleable cast iron fittings are primarily approved for gas-carrying and water-carrying pipes in building installations. Typical areas of application are heating systems, cold and hot water pipes and gas installations up to the permitted pressure levels. They are also widely used in industry, for example in compressed air lines or pipe network connections. <\/p>\n\n The connection technology with threaded connection in accordance with DIN EN 10242 is tried and tested, widely used and requires no special tools. This makes malleable cast iron fittings particularly attractive for existing installations and for installations where flexibility in the choice of tools is important. Installation can be carried out quickly and easily by trained HVAC specialists. <\/p>\n\n For use in gas and drinking water installations, certification in accordance with DVGW (German Technical and Scientific Association for Gas and Water) and SVGW (Swiss Technical and Scientific Association for Gas and Water) is a relevant proof of quality. HS Fittings malleable cast iron fittings meet these requirements and are certified accordingly. This gives planners, processors and operators the necessary legal certainty for drinking water and gas systems. <\/p>\n\n Not every connection is equally suitable for every application. Anyone selecting malleable cast iron fittings should keep the following points in mind: <\/p>\n\n For specialist wholesalers and HVAC companies, this means that a supplier who delivers both standard-compliant and above-average galvanized malleable cast iron fittings with DVGW certification reduces the risk of complaints and simplifies product selection. You can find more technical details in the data sheets and downloads<\/a>. <\/p>\n\n Malleable cast iron fittings impress with their conformity to standards, mechanical robustness and proven connection technology. With a strong galvanized coating and DVGW\/SVGW certification, HS Fittings products are well equipped for a wide range of applications in heating, water and gas. If you want to make the right choice for your project, HS Fittings will provide you with professional support and the right product range. Feel free to contact us<\/a> and let us advise you. <\/p>\n","protected":false},"excerpt":{"rendered":" Malleable cast iron fittings have been part of the basic equipment of professional pipe installations for decades. Anyone planning, installing or purchasing in the HVAC sector can hardly avoid this material. And yet knowledge about properties, standards and application limits is often incomplete. This article explains what malleable cast iron fittings are, where they show […]<\/p>\n","protected":false},"author":2,"featured_media":1439,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70],"tags":[],"class_list":["post-1847","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/hs-fittings.de\/en\/wp-json\/wp\/v2\/posts\/1847","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hs-fittings.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hs-fittings.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hs-fittings.de\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hs-fittings.de\/en\/wp-json\/wp\/v2\/comments?post=1847"}],"version-history":[{"count":1,"href":"https:\/\/hs-fittings.de\/en\/wp-json\/wp\/v2\/posts\/1847\/revisions"}],"predecessor-version":[{"id":1849,"href":"https:\/\/hs-fittings.de\/en\/wp-json\/wp\/v2\/posts\/1847\/revisions\/1849"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hs-fittings.de\/en\/wp-json\/wp\/v2\/media\/1439"}],"wp:attachment":[{"href":"https:\/\/hs-fittings.de\/en\/wp-json\/wp\/v2\/media?parent=1847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hs-fittings.de\/en\/wp-json\/wp\/v2\/categories?post=1847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hs-fittings.de\/en\/wp-json\/wp\/v2\/tags?post=1847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Areas of application in practice<\/h2>\n\n
DVGW and SVGW certification as a sign of quality<\/h3>\n\n
What to look out for when choosing<\/h2>\n\n
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Conclusion: Malleable cast iron fittings as a reliable basis for threaded installations<\/h2>\n\n