{"id":355,"date":"2012-02-28T22:03:47","date_gmt":"2012-02-28T14:03:47","guid":{"rendered":"http:\/\/www.hsflanges.com\/blog\/?p=355"},"modified":"2018-12-20T20:29:32","modified_gmt":"2018-12-20T12:29:32","slug":"flange-facing-types","status":"publish","type":"post","link":"https:\/\/www.hsflanges.com\/blog\/flange-facing-types\/","title":{"rendered":"Flange Facing Types"},"content":{"rendered":"<h2>Flange Facing Types<\/h2>\n<div>One end of the flex joint is a flat face to match the pump face and the other end is raised face to match the flange.<\/div>\n<ul>\n<li><strong>Flat Face<\/strong>\u00a0<strong>(FF)<\/strong>\u00a0&#8211; Typically these flanges are used on pump facings or on fiberglass flanges where the\u00a0<a title=\"Torque\" href=\"http:\/\/piping-designer.com\/Torque\">torque<\/a>\u00a0of compressing the gasket will damage the flange body. They are found in 150# and 300# ratings. Their principal use is to make connections with 125# and 250# cast iron flanges, respectively.<\/li>\n<\/ul>\n<ul>\n<li><strong>Raised Face<\/strong>\u00a0<strong>(RF)<\/strong>\u00a0&#8211; The raised face is the most common used flange face. It is called raised face because the gasket is raised 1\/16&#8243; and 1\/4&#8243; above the bolt circle face: 1\/16&#8243; for 300 lb. and less, 1\/4&#8243; for 400 lb. and more. The flange facings are machine finished to<a title=\"ANSI\" href=\"http:\/\/piping-designer.com\/ANSI\">ANSI<\/a>\/<a title=\"ASME B16.5\" href=\"http:\/\/piping-designer.com\/ASME_B16.5\">ASME B16.5<\/a>\u00a0requirements.<\/li>\n<\/ul>\n<ul>\n<li><strong>Ring Type Joint<\/strong>\u00a0<strong>(RTJ)<\/strong>\u00a0(Class 300 and larger) &#8211; This flange is normally used for high pressure gas pipe work. Ring type gaskets must be used on this type of flange.<\/li>\n<\/ul>\n<ul>\n<li><strong>Tongue and Groove<\/strong>\u00a0<strong>(T&amp;G)<\/strong>\n<ul>\n<li>Small Tongue and Groove<\/li>\n<li>Large Tongue and Groove<\/li>\n<li>Small Male and Female<\/li>\n<li>Large Male and Female<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Flange Facing Types One end of the flex joint is a flat face to match the pump face and the other end is raised face to match the flange. Flat Face\u00a0(FF)\u00a0&#8211; Typically these flanges are used on pump facings or on fiberglass flanges where the\u00a0torque\u00a0of compressing the gasket will damage the flange body. They are&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[],"_links":{"self":[{"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/posts\/355"}],"collection":[{"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/comments?post=355"}],"version-history":[{"count":2,"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/posts\/355\/revisions"}],"predecessor-version":[{"id":357,"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/posts\/355\/revisions\/357"}],"wp:attachment":[{"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/media?parent=355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/categories?post=355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/tags?post=355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}