\/\/\/Class 150\/\/\/<\/p>\n
\tNominal sizeConnection sizeflange thickness<\/p>\n
\tDNNPSFlange outer diameter DCentral circle diameter KBolt hole diameter LNumber of bolt holes nBolt ThC<\/p>\n
\t151\/29060.3164M149.6<\/p>\n
\t203\/410069.9164M1411.2<\/p>\n
\t25111079.4164M1412.7<\/p>\n
\t321 1\/411588.9164M1414.3<\/p>\n
\t401 1\/212598.4164M1415.9<\/p>\n
\t502150120.7184M1617.5<\/p>\n
\t652 1\/2180139.7184M1620.7<\/p>\n
\t803190152.4184M1622.3<\/p>\n
\t1004230190.5188M1622.3<\/p>\n
\t1255255215.9228M2022.3<\/p>\n
\t1506280241.3228M2023.9<\/p>\n
\t2008345298.58228M2027.0<\/p>\n
\t25010405362.02612M2428.6<\/p>\n
\t30012485431.82612M2430.2<\/p>\n
\t35014535476.33012M2733.4<\/p>\n
\t40016595539.83016M2735.0<\/p>\n
\t45018635577.93316M3038.1<\/p>\n
\t50020700635.03320M3041.3<\/p>\n
\t60024815749.33620M3346.1<\/p>\n
\/\/\/CLASS 300\/\/\/<\/p>\n
\tNominal sizeConnection sizeflange thickness<\/p>\n
\tDNNPSFlange outer diameter DCentral circle diameter KBolt hole diameter LNumber of bolt holes nBolt ThC<\/p>\n
\t151\/29566.7164M1412.7<\/p>\n
\t203\/411582.6184M1614.3<\/p>\n
\t25112588.9184M1615.9<\/p>\n
\t321 1\/413598.4184M1617.5<\/p>\n
\t401 1\/2155114.3224M2019.1<\/p>\n
\t502165127.0188M1620.7<\/p>\n
\t652 1\/2190149.2228M2023.9<\/p>\n
\t803210168.3228M2027.0<\/p>\n
\t1004255200.0228M2030.2<\/p>\n
\t1255280235.0228M2033.4<\/p>\n
\t1506320269.92212M2035.0<\/p>\n
\t2008380330.22612M2439.7<\/p>\n
\t25010445387.43016M2746.1<\/p>\n
\t30012520450.83316M3049.3<\/p>\n
\t35014585514.43320M3052.4<\/p>\n
\t40016650571.53620M3355.6<\/p>\n
\t45018710628.63624M3358.8<\/p>\n
\t50020775685.83624M3362.0<\/p>\n
\t60024915812.84224M39X368.3<\/p>\n
\/\/\/CLASS 600\/\/\/<\/p>\n
\tNominal sizeConnection sizeflange thickness<\/p>\n
\tDNNPSFlange outer diameter DCentral circle diameter KBolt hole diameter LNumber of bolt holes nBolt ThC<\/p>\n
\t151\/29566.7164M1414.3<\/p>\n
\t203\/411582.6184M1615.9<\/p>\n
\t25112588.9184M1617.5<\/p>\n
\t321 1\/413598.4184M1620.7<\/p>\n
\t401 1\/2155114.3224M2022.3<\/p>\n
\t502165127.0188M1625.4<\/p>\n
\t652 1\/2190149.2228M2028.6<\/p>\n
\t803210168.3228M2031.8<\/p>\n
\t1004275215.9268M2438.1<\/p>\n
\t1255330266.7308M2744.5<\/p>\n
\t1506355292.13012M2747.7<\/p>\n
\t2008420349.23312M3055.6<\/p>\n
\t25010510431.83616M3363.5<\/p>\n
\t30012560489.03620M3366.7<\/p>\n
\t35014605527.03920M36X369.9<\/p>\n
\t40016685603.24220M39X376.2<\/p>\n
\t45018745654.04520M42X382.6<\/p>\n
\t50020815723.94524M42X388.9<\/p>\n
\t60024940838.25124M48X3101.6<\/p>\n
\/\/\/CLASS 900\/\/\/<\/p>\n
\tNominal sizeConnection sizeflange thickness<\/p>\n
\tDNNPSFlange outer diameter DCentral circle diameter KBolt hole diameter LNumber of bolt holes nBolt ThC<\/p>\n
\t151\/212082.6224M2022.3<\/p>\n
\t203\/413088.9224M2025.4<\/p>\n
\t251150101.6264M2428.6<\/p>\n
\t321 1\/4160111.1264M2428.6<\/p>\n
\t401 1\/2180123.8304M2731.8<\/p>\n
\t502215165.1268M2438.1<\/p>\n
\t652 1\/2245190.5308M2741.3<\/p>\n
\t803240190.5268M2438.1<\/p>\n
\t1004290235.0338M3044.5<\/p>\n
\t1255350279.4368M3350.8<\/p>\n
\t1506380317.53312M3055.6<\/p>\n
\t2008470393.73912M36X363.5<\/p>\n
\t25010545469.93916M36X369.9<\/p>\n
\t30012610533.43920M36X379.4<\/p>\n
\t35014640558.84220M39X385.8<\/p>\n
\t40016705616.04520M42X388.9<\/p>\n
\t45018785685.85120M48X3101.6<\/p>\n
\t50020855749.35520M52X3108.0<\/p>\n
\t600241040901.76820M64X3139.7<\/p>\n
\/\/\/CLASS 1500\/\/\/<\/p>\n
\tNominal sizeConnection sizeflange thickness<\/p>\n
\tDNNPSFlange outer diameter DCentral circle diameter KBolt hole diameter LNumber of bolt holes nBolt ThC<\/p>\n
\t151\/212082.6224M2022.3<\/p>\n
\t203\/413088.9224M2025.4<\/p>\n
\t251150101.6264M2428.6<\/p>\n
\t321 1\/4160111.1264M2428.6<\/p>\n
\t401 1\/2180123.8304M2731.8<\/p>\n
\t502215165.1268M2438.1<\/p>\n
\t652 1\/2245190.5308M2741.3<\/p>\n
\t803265203.2338M3047.7<\/p>\n
\t1004310241.3368M3354.0<\/p>\n
\t1255375292.1428M39X373.1<\/p>\n
\t1506395317.53912M36X382.6<\/p>\n
\t2008485393.74512M42X392.1<\/p>\n
\t25010585482.65112M48X3108.0<\/p>\n
\t30012675571.55516M52X3123.9<\/p>\n
\t35014750635.06016M56X3133.4<\/p>\n
\t40016825704.86816M64X3146.1<\/p>\n
\t45018915774.77416M70X3162.0<\/p>\n
\t50020985831.88016M76X3177.8<\/p>\n
\t600241170990.69416M90X3203.2<\/p>\n
\/\/\/CLASS 2500\/\/\/<\/p>\n
\tNominal sizeConnection sizeflange thickness<\/p>\n
\tDNNPSFlange outer diameter DCentral circle diameter KBolt hole diameter LNumber of bolt holes nBolt ThC<\/p>\n
\t151\/213588.9224M2030.2<\/p>\n
\t203\/414095.2224M2031.8<\/p>\n
\t251160108.0264M2435.0<\/p>\n
\t321 1\/4185130.2304M2738.1<\/p>\n
\t401 1\/2205146.0334M3044.5<\/p>\n
\t502235171.4308M2750.9<\/p>\n
\t652 1\/2265196.8338M3057.2<\/p>\n
\t803305228.6368M3366.7<\/p>\n
\t1004355273.0428M39X376.2<\/p>\n
\t1255420323.8488M45X392.1<\/p>\n
\t1506485368.3558M52X3108.0<\/p>\n
\t2008550438.25512M52X3127.0<\/p>\n
\t25010675539.86812M64X3165.1<\/p>\n
\t30012760619.17412M70X3184.2<\/p>\n
Frequently Asked Questions (FAQs)<\/p>\n
What is the purpose of a blind flange?
\nA blind flange is used to seal the end of a pipeline, valve, or pressure vessel, effectively blocking fluid flow and preventing leaks.<\/p>\n
Can blind flanges be used for maintenance purposes?
\nYes, blind flanges can be easily unbolted to provide access for maintenance, inspection, or cleaning inside the terminal end of the pipe or pressure vessel.<\/p>\n
Why are blind flanges sold at a premium cost compared to other flanges?
\nAlthough easier to manufacture, blind flanges are sold at a premium due to their high mechanical strength and the specific requirements for bolting forces and pressure resistance.<\/p>","protected":false},"excerpt":{"rendered":"
\/\/\/Class 150\/\/\/ Nominal sizeConnection sizeflange thickness DNNPSFlange outer diameter DCentral circle diameter KBolt hole diameter LNumber of bolt holes nBolt ThC 151\/29060.3164M149.6 203\/410069.9164M1411.2…<\/p>","protected":false},"author":1,"featured_media":1250,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[85],"tags":[],"class_list":["post-1249","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blind-flanges"],"_links":{"self":[{"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/posts\/1249","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/comments?post=1249"}],"version-history":[{"count":1,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/posts\/1249\/revisions"}],"predecessor-version":[{"id":1324,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/posts\/1249\/revisions\/1324"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/media\/1250"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/media?parent=1249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/categories?post=1249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/tags?post=1249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}