{"id":22,"date":"2011-01-14T14:05:03","date_gmt":"2011-01-14T06:05:03","guid":{"rendered":"http:\/\/www.hsflanges.com\/blog\/?p=22"},"modified":"2018-12-20T20:41:06","modified_gmt":"2018-12-20T12:41:06","slug":"flange-pipe-dimensions-requirements-application","status":"publish","type":"post","link":"https:\/\/www.hsflanges.com\/blog\/flange-pipe-dimensions-requirements-application\/","title":{"rendered":"Flange, pipe, dimensions, requirements, application"},"content":{"rendered":"

Flange dimensions are determined by pipe size and pressure class required for the application. Most of these dimensions have been standardized and published as ASME, MSS, API or other standardization organization specifications.<\/p>\n

ASME\/ANSI B16.5<\/a> provides dimensions and tolerances for flanges in pipe sizes from 1\/2″ through 24″ and in classes ranging 150 through 2500.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Nominal Pipe Size
\nNPS
\n(inches)<\/em><\/td>\n		Class 150<\/td>\n<\/tr>\n
Diameter of
\nFlange
\n(inches)<\/em><\/td>\n		No.
\nof
\nBolts<\/td>\n		Diameter of
\nBolts
\n(inches)<\/em><\/td>\n		Bolt
\nCircle
\n(inches)<\/em><\/td>\n<\/tr>\n
1\/4<\/td>\n3-3\/8<\/td>\n4<\/td>\n1\/2<\/td>\n2-1\/4<\/td>\n<\/tr>\n
1\/2<\/td>\n3-1\/2<\/td>\n4<\/td>\n1\/2<\/td>\n2-3\/8<\/td>\n<\/tr>\n
3\/4<\/td>\n3-7\/8<\/td>\n4<\/td>\n1\/2<\/td>\n2-3\/4<\/td>\n<\/tr>\n
1<\/td>\n4-1\/4<\/td>\n4<\/td>\n1\/2<\/td>\n3-1\/8<\/td>\n<\/tr>\n
1-1\/4<\/td>\n4-5\/8<\/td>\n4<\/td>\n1\/2<\/td>\n3-1\/2<\/td>\n<\/tr>\n
1-1\/2<\/td>\n5<\/td>\n4<\/td>\n1\/2<\/td>\n3-7\/8<\/td>\n<\/tr>\n
2<\/td>\n6<\/td>\n4<\/td>\n5\/8<\/td>\n4-3\/4<\/td>\n<\/tr>\n
2-1\/2<\/td>\n7<\/td>\n4<\/td>\n5\/8<\/td>\n5-1\/2<\/td>\n<\/tr>\n
3<\/td>\n7-1\/2<\/td>\n4<\/td>\n5\/8<\/td>\n6<\/td>\n<\/tr>\n
3-1\/2<\/td>\n8-1\/2<\/td>\n8<\/td>\n5\/8<\/td>\n7<\/td>\n<\/tr>\n
4<\/td>\n9<\/td>\n8<\/td>\n5\/8<\/td>\n7-1\/2<\/td>\n<\/tr>\n
5<\/td>\n10<\/td>\n8<\/td>\n3\/4<\/td>\n8-1\/2<\/td>\n<\/tr>\n
6<\/td>\n11<\/td>\n8<\/td>\n3\/4<\/td>\n9-1\/2<\/td>\n<\/tr>\n
8<\/td>\n13-1\/2<\/td>\n8<\/td>\n3\/4<\/td>\n11-3\/4<\/td>\n<\/tr>\n
10<\/td>\n16<\/td>\n12<\/td>\n7\/8<\/td>\n14-1\/4<\/td>\n<\/tr>\n
12<\/td>\n19<\/td>\n12<\/td>\n7\/8<\/td>\n17<\/td>\n<\/tr>\n
14<\/td>\n21<\/td>\n12<\/td>\n1<\/td>\n18-3\/4<\/td>\n<\/tr>\n
16<\/td>\n23-1\/2<\/td>\n16<\/td>\n1<\/td>\n21-1\/4<\/td>\n<\/tr>\n
18<\/td>\n25<\/td>\n16<\/td>\n1-1\/8<\/td>\n22-3\/4<\/td>\n<\/tr>\n
20<\/td>\n27-1\/2<\/td>\n20<\/td>\n1-1\/8<\/td>\n25<\/td>\n<\/tr>\n
24<\/td>\n32<\/td>\n20<\/td>\n1-1\/4<\/td>\n29-1\/2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Nominal Pipe Size
\nNPS
\n(inches)<\/em><\/td>\n		Class 300<\/td>\n<\/tr>\n
Diameter of
\nFlange
\n(inches)<\/em><\/td>\n		No.
\nof
\nBolts<\/td>\n		Diameter of
\nBolts
\n(inches)<\/em><\/td>\n		Bolt
\nCircle
\n(inches)<\/em><\/td>\n<\/tr>\n
1\/4<\/td>\n3-3\/8<\/td>\n4<\/td>\n1\/2<\/td>\n2-1\/4<\/td>\n<\/tr>\n
1\/2<\/td>\n3-3\/4<\/td>\n4<\/td>\n1\/2<\/td>\n2-5\/8<\/td>\n<\/tr>\n
3\/4<\/td>\n4-5\/8<\/td>\n4<\/td>\n5\/8<\/td>\n3-1\/4<\/td>\n<\/tr>\n
1<\/td>\n4-7\/8<\/td>\n4<\/td>\n5\/8<\/td>\n3-1\/2<\/td>\n<\/tr>\n
1-1\/4<\/td>\n5-1\/4<\/td>\n4<\/td>\n5\/8<\/td>\n3-7\/8<\/td>\n<\/tr>\n
1-1\/2<\/td>\n6-1\/8<\/td>\n4<\/td>\n3\/4<\/td>\n4-1\/2<\/td>\n<\/tr>\n
2<\/td>\n6-1\/2<\/td>\n8<\/td>\n5\/8<\/td>\n5<\/td>\n<\/tr>\n
2-1\/2<\/td>\n7-1\/2<\/td>\n8<\/td>\n3\/4<\/td>\n5-7\/8<\/td>\n<\/tr>\n
3<\/td>\n8-1\/4<\/td>\n8<\/td>\n3\/4<\/td>\n6-5\/8<\/td>\n<\/tr>\n
3-1\/2<\/td>\n9<\/td>\n8<\/td>\n3\/4<\/td>\n7-1\/4<\/td>\n<\/tr>\n
4<\/td>\n10<\/td>\n8<\/td>\n3\/4<\/td>\n7-7\/8<\/td>\n<\/tr>\n
5<\/td>\n11<\/td>\n8<\/td>\n3\/4<\/td>\n9-1\/4<\/td>\n<\/tr>\n
6<\/td>\n12-1\/2<\/td>\n12<\/td>\n3\/4<\/td>\n10-5\/8<\/td>\n<\/tr>\n
8<\/td>\n15<\/td>\n12<\/td>\n7\/8<\/td>\n13<\/td>\n<\/tr>\n
10<\/td>\n17-1\/2<\/td>\n16<\/td>\n1<\/td>\n15-1\/4<\/td>\n<\/tr>\n
12<\/td>\n20-1\/2<\/td>\n16<\/td>\n1-1\/8<\/td>\n17-3\/4<\/td>\n<\/tr>\n
14<\/td>\n23<\/td>\n20<\/td>\n1-1\/8<\/td>\n20-1\/4<\/td>\n<\/tr>\n
16<\/td>\n25-1\/2<\/td>\n20<\/td>\n1-1\/4<\/td>\n22-1\/2<\/td>\n<\/tr>\n
18<\/td>\n28<\/td>\n24<\/td>\n1-1\/4<\/td>\n24-3\/4<\/td>\n<\/tr>\n
20<\/td>\n30-1\/2<\/td>\n24<\/td>\n1-1\/4<\/td>\n27<\/td>\n<\/tr>\n
24<\/td>\n36<\/td>\n24<\/td>\n1-1\/2<\/td>\n32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Nominal Pipe Size
\nNPS
\n(inches)<\/em><\/td>\n		Class 400<\/td>\n<\/tr>\n
Diameter of
\nFlange
\n(inches)<\/em><\/td>\n		No.
\nof
\nBolts<\/td>\n		Diameter of
\nBolts
\n(inches)<\/em><\/td>\n		Bolt
\nCircle
\n(inches)<\/em><\/td>\n<\/tr>\n
1\/4<\/td>\n3-3\/8<\/td>\n4<\/td>\n1\/2<\/td>\n2-1\/4<\/td>\n<\/tr>\n
1\/2<\/td>\n3-3\/4<\/td>\n4<\/td>\n1\/2<\/td>\n2-5\/8<\/td>\n<\/tr>\n
3\/4<\/td>\n4-5\/8<\/td>\n4<\/td>\n5\/8<\/td>\n3-1\/4<\/td>\n<\/tr>\n
1<\/td>\n4-7\/8<\/td>\n4<\/td>\n5\/8<\/td>\n3-1\/2<\/td>\n<\/tr>\n
1-1\/4<\/td>\n5-1\/4<\/td>\n4<\/td>\n5\/8<\/td>\n3-7\/8<\/td>\n<\/tr>\n
1-1\/2<\/td>\n6-1\/8<\/td>\n4<\/td>\n3\/4<\/td>\n4-1\/2<\/td>\n<\/tr>\n
2<\/td>\n6-1\/2<\/td>\n8<\/td>\n5\/8<\/td>\n5<\/td>\n<\/tr>\n
2-1\/2<\/td>\n7-1\/2<\/td>\n8<\/td>\n3\/4<\/td>\n5-7\/8<\/td>\n<\/tr>\n
3<\/td>\n8-1\/4<\/td>\n8<\/td>\n3\/4<\/td>\n6-5\/8<\/td>\n<\/tr>\n
3-1\/2<\/td>\n9<\/td>\n8<\/td>\n7\/8<\/td>\n7-1\/4<\/td>\n<\/tr>\n
4<\/td>\n10<\/td>\n8<\/td>\n7\/8<\/td>\n7-7\/8<\/td>\n<\/tr>\n
5<\/td>\n11<\/td>\n8<\/td>\n7\/8<\/td>\n9-1\/4<\/td>\n<\/tr>\n
6<\/td>\n12-1\/2<\/td>\n12<\/td>\n7\/8<\/td>\n10-5\/8<\/td>\n<\/tr>\n
8<\/td>\n15<\/td>\n12<\/td>\n1<\/td>\n13<\/td>\n<\/tr>\n
10<\/td>\n17-1\/2<\/td>\n16<\/td>\n1-1\/8<\/td>\n15-1\/4<\/td>\n<\/tr>\n
12<\/td>\n20-1\/2<\/td>\n16<\/td>\n1-1\/4<\/td>\n17-3\/4<\/td>\n<\/tr>\n
14<\/td>\n23<\/td>\n20<\/td>\n1-1\/4<\/td>\n20-1\/4<\/td>\n<\/tr>\n
16<\/td>\n25-1\/2<\/td>\n20<\/td>\n1-3\/8<\/td>\n22-1\/2<\/td>\n<\/tr>\n
18<\/td>\n28<\/td>\n24<\/td>\n1-3\/8<\/td>\n24-3\/4<\/td>\n<\/tr>\n
20<\/td>\n30-1\/2<\/td>\n24<\/td>\n1-1\/2<\/td>\n27<\/td>\n<\/tr>\n
24<\/td>\n36<\/td>\n24<\/td>\n1-3\/4<\/td>\n32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Nominal Pipe Size
\nNPS
\n(inches)<\/em><\/td>\n		Class 600<\/td>\n<\/tr>\n
Diameter of
\nFlange
\n(inches)<\/em><\/td>\n		No.
\nof
\nBolts<\/td>\n		Diameter of
\nBolts
\n(inches)<\/em><\/td>\n		Bolt
\nCircle
\n(inches)<\/em><\/td>\n<\/tr>\n
1\/4<\/td>\n3-3\/8<\/td>\n4<\/td>\n1\/2<\/td>\n2-1\/4<\/td>\n<\/tr>\n
1\/2<\/td>\n3-3\/4<\/td>\n4<\/td>\n1\/2<\/td>\n2-5\/8<\/td>\n<\/tr>\n
3\/4<\/td>\n4-5\/8<\/td>\n4<\/td>\n5\/8<\/td>\n3-1\/4<\/td>\n<\/tr>\n
1<\/td>\n4-7\/8<\/td>\n4<\/td>\n5\/8<\/td>\n3-1\/2<\/td>\n<\/tr>\n
1-1\/4<\/td>\n5-1\/4<\/td>\n4<\/td>\n5\/8<\/td>\n3-7\/8<\/td>\n<\/tr>\n
1-1\/2<\/td>\n6-1\/8<\/td>\n4<\/td>\n3\/4<\/td>\n4-1\/2<\/td>\n<\/tr>\n
2<\/td>\n6-1\/2<\/td>\n8<\/td>\n5\/8<\/td>\n5<\/td>\n<\/tr>\n
2-1\/2<\/td>\n7-1\/2<\/td>\n8<\/td>\n3\/4<\/td>\n5-7\/8<\/td>\n<\/tr>\n
3<\/td>\n8-1\/4<\/td>\n8<\/td>\n3\/4<\/td>\n6-5\/8<\/td>\n<\/tr>\n
3-1\/2<\/td>\n9<\/td>\n8<\/td>\n7\/8<\/td>\n7-1\/4<\/td>\n<\/tr>\n
4<\/td>\n10-3\/4<\/td>\n8<\/td>\n7\/8<\/td>\n8-1\/2<\/td>\n<\/tr>\n
5<\/td>\n13<\/td>\n8<\/td>\n1<\/td>\n10-1\/2<\/td>\n<\/tr>\n
6<\/td>\n14<\/td>\n12<\/td>\n1<\/td>\n11-1\/2<\/td>\n<\/tr>\n
8<\/td>\n16-1\/2<\/td>\n12<\/td>\n1-1\/8<\/td>\n13-3\/4<\/td>\n<\/tr>\n
10<\/td>\n20<\/td>\n16<\/td>\n1-1\/4<\/td>\n17<\/td>\n<\/tr>\n
12<\/td>\n22<\/td>\n20<\/td>\n1-1\/4<\/td>\n19-1\/4<\/td>\n<\/tr>\n
14<\/td>\n23-3\/4<\/td>\n20<\/td>\n1-3\/8<\/td>\n20-3\/4<\/td>\n<\/tr>\n
16<\/td>\n27<\/td>\n20<\/td>\n1-1\/2<\/td>\n23-3\/4<\/td>\n<\/tr>\n
18<\/td>\n29-1\/4<\/td>\n20<\/td>\n1-5\/8<\/td>\n25-3\/4<\/td>\n<\/tr>\n
20<\/td>\n32<\/td>\n24<\/td>\n1-5\/8<\/td>\n28-1\/2<\/td>\n<\/tr>\n
24<\/td>\n37<\/td>\n24<\/td>\n1-7\/8<\/td>\n33<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Nominal Pipe Size
\nNPS
\n(inches)<\/em><\/td>\n		Class 900<\/td>\n<\/tr>\n
Diameter of
\nFlange
\n(inches)<\/em><\/td>\n		No.
\nof
\nBolts<\/td>\n		Diameter of
\nBolts
\n(inches)<\/em><\/td>\n		Bolt
\nCircle
\n(inches)<\/em><\/td>\n<\/tr>\n
1\/2<\/td>\n4-3\/4<\/td>\n4<\/td>\n3\/4<\/td>\n3-1\/4<\/td>\n<\/tr>\n
3\/4<\/td>\n5-1\/8<\/td>\n4<\/td>\n3\/4<\/td>\n3-1\/2<\/td>\n<\/tr>\n
1<\/td>\n5-7\/8<\/td>\n4<\/td>\n7\/8<\/td>\n4<\/td>\n<\/tr>\n
1-1\/4<\/td>\n6-1\/4<\/td>\n4<\/td>\n7\/8<\/td>\n4-3\/8<\/td>\n<\/tr>\n
1-1\/2<\/td>\n7<\/td>\n4<\/td>\n1<\/td>\n4-7\/8<\/td>\n<\/tr>\n
2<\/td>\n8-1\/2<\/td>\n8<\/td>\n7\/8<\/td>\n6-1\/2<\/td>\n<\/tr>\n
2-1\/2<\/td>\n9-5\/8<\/td>\n8<\/td>\n1<\/td>\n7-1\/2<\/td>\n<\/tr>\n
3<\/td>\n9-1\/2<\/td>\n8<\/td>\n7\/8<\/td>\n7-1\/2<\/td>\n<\/tr>\n
4<\/td>\n11-1\/2<\/td>\n8<\/td>\n1-1\/8<\/td>\n9-1\/4<\/td>\n<\/tr>\n
5<\/td>\n13-3\/4<\/td>\n8<\/td>\n1-1\/4<\/td>\n11<\/td>\n<\/tr>\n
6<\/td>\n15<\/td>\n12<\/td>\n1-1\/8<\/td>\n12-1\/2<\/td>\n<\/tr>\n
8<\/td>\n18-1\/2<\/td>\n12<\/td>\n1-3\/8<\/td>\n15-1\/2<\/td>\n<\/tr>\n
10<\/td>\n21-1\/2<\/td>\n16<\/td>\n1-3\/8<\/td>\n18-1\/2<\/td>\n<\/tr>\n
12<\/td>\n24<\/td>\n20<\/td>\n1-3\/8<\/td>\n21<\/td>\n<\/tr>\n
14<\/td>\n25-1\/4<\/td>\n20<\/td>\n1-1\/2<\/td>\n22<\/td>\n<\/tr>\n
16<\/td>\n27-3\/4<\/td>\n20<\/td>\n1-5\/8<\/td>\n24-1\/2<\/td>\n<\/tr>\n
18<\/td>\n31<\/td>\n20<\/td>\n1-7\/8<\/td>\n27<\/td>\n<\/tr>\n
20<\/td>\n33-3\/4<\/td>\n20<\/td>\n2<\/td>\n29-1\/2<\/td>\n<\/tr>\n
24<\/td>\n41<\/td>\n20<\/td>\n2-1\/2<\/td>\n35-1\/2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Nominal Pipe Size
\nNPS
\n(inches)<\/em><\/td>\n		Class 1500<\/td>\n<\/tr>\n
Diameter of
\nFlange
\n(inches)<\/em><\/td>\n		No.
\nof
\nBolts<\/td>\n		Diameter of
\nBolts
\n(inches)<\/em><\/td>\n		Bolt
\nCircle
\n(inches)<\/em><\/td>\n<\/tr>\n
1\/2<\/td>\n4-3\/4<\/td>\n4<\/td>\n3\/4<\/td>\n3-1\/4<\/td>\n<\/tr>\n
3\/4<\/td>\n5-1\/8<\/td>\n4<\/td>\n3\/4<\/td>\n3-1\/2<\/td>\n<\/tr>\n
1<\/td>\n5-7\/8<\/td>\n4<\/td>\n7\/8<\/td>\n4<\/td>\n<\/tr>\n
1-1\/4<\/td>\n6-1\/4<\/td>\n4<\/td>\n7\/8<\/td>\n4-3\/8<\/td>\n<\/tr>\n
1-1\/2<\/td>\n7<\/td>\n4<\/td>\n1<\/td>\n4-7\/8<\/td>\n<\/tr>\n
2<\/td>\n8-1\/2<\/td>\n8<\/td>\n7\/8<\/td>\n6-1\/2<\/td>\n<\/tr>\n
2-1\/2<\/td>\n9-5\/8<\/td>\n8<\/td>\n1<\/td>\n7-1\/2<\/td>\n<\/tr>\n
3<\/td>\n10-1\/2<\/td>\n8<\/td>\n1-1\/8<\/td>\n8<\/td>\n<\/tr>\n
4<\/td>\n12-1\/4<\/td>\n8<\/td>\n1-1\/4<\/td>\n9-1\/2<\/td>\n<\/tr>\n
5<\/td>\n14-3\/4<\/td>\n8<\/td>\n1-1\/2<\/td>\n11-1\/2<\/td>\n<\/tr>\n
6<\/td>\n15-1\/2<\/td>\n12<\/td>\n1-3\/8<\/td>\n12-1\/2<\/td>\n<\/tr>\n
8<\/td>\n19<\/td>\n12<\/td>\n1-5\/8<\/td>\n15-1\/2<\/td>\n<\/tr>\n
10<\/td>\n23<\/td>\n12<\/td>\n1-7\/8<\/td>\n19<\/td>\n<\/tr>\n
12<\/td>\n26-1\/2<\/td>\n16<\/td>\n2<\/td>\n22-1\/2<\/td>\n<\/tr>\n
14<\/td>\n29-1\/2<\/td>\n16<\/td>\n2-1\/4<\/td>\n25<\/td>\n<\/tr>\n
16<\/td>\n32-1\/2<\/td>\n16<\/td>\n2-1\/2<\/td>\n27-3\/4<\/td>\n<\/tr>\n
18<\/td>\n36<\/td>\n16<\/td>\n2-3\/4<\/td>\n30-1\/2<\/td>\n<\/tr>\n
20<\/td>\n38-3\/4<\/td>\n16<\/td>\n3<\/td>\n32-3\/4<\/td>\n<\/tr>\n
24<\/td>\n46<\/td>\n16<\/td>\n3-1\/2<\/td>\n39<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Nominal Pipe Size
\nNPS
\n(inches)<\/em><\/td>\n		Class 2500<\/td>\n<\/tr>\n
Diameter of
\nFlange
\n(inches)<\/em><\/td>\n		No.
\nof
\nBolts<\/td>\n		Diameter of
\nBolts
\n(inches)<\/em><\/td>\n		Bolt
\nCircle
\n(inches)<\/em><\/td>\n<\/tr>\n
1\/2<\/td>\n5-1\/4<\/td>\n4<\/td>\n3\/4<\/td>\n3-1\/2<\/td>\n<\/tr>\n
3\/4<\/td>\n5-1\/2<\/td>\n4<\/td>\n3\/4<\/td>\n3-3\/4<\/td>\n<\/tr>\n
1<\/td>\n6-1\/4<\/td>\n4<\/td>\n7\/8<\/td>\n4-1\/4<\/td>\n<\/tr>\n
1-1\/4<\/td>\n7-1\/4<\/td>\n4<\/td>\n1<\/td>\n5-1\/8<\/td>\n<\/tr>\n
1-1\/2<\/td>\n8<\/td>\n4<\/td>\n1-1\/8<\/td>\n5-3\/4<\/td>\n<\/tr>\n
2<\/td>\n9-1\/4<\/td>\n8<\/td>\n1<\/td>\n6-3\/4<\/td>\n<\/tr>\n
2-1\/2<\/td>\n10-1\/2<\/td>\n8<\/td>\n1-1\/8<\/td>\n7-3\/4<\/td>\n<\/tr>\n
3<\/td>\n12<\/td>\n8<\/td>\n1-1\/4<\/td>\n9<\/td>\n<\/tr>\n
4<\/td>\n14<\/td>\n8<\/td>\n1-1\/2<\/td>\n10-3\/4<\/td>\n<\/tr>\n
5<\/td>\n16-1\/2<\/td>\n8<\/td>\n1-3\/4<\/td>\n12-3\/4<\/td>\n<\/tr>\n
6<\/td>\n19<\/td>\n8<\/td>\n2<\/td>\n14-1\/2<\/td>\n<\/tr>\n
8<\/td>\n21-3\/4<\/td>\n12<\/td>\n2<\/td>\n17-1\/4<\/td>\n<\/tr>\n
10<\/td>\n26-1\/2<\/td>\n12<\/td>\n2-1\/2<\/td>\n21-1\/4<\/td>\n<\/tr>\n
12<\/td>\n30<\/td>\n12<\/td>\n2-3\/4<\/td>\n24-3\/8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Flange dimensions are determined by pipe size and pressure class required for the application. Most of these dimensions have been standardized and published as ASME, MSS, API or other standardization organization specifications. ASME\/ANSI B16.5 provides dimensions and tolerances for flanges in pipe sizes from 1\/2″ through 24″ and in classes ranging 150 through 2500. Nominal…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[46,44,45],"_links":{"self":[{"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/posts\/22"}],"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=22"}],"version-history":[{"count":1,"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/posts\/22\/revisions"}],"predecessor-version":[{"id":23,"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/posts\/22\/revisions\/23"}],"wp:attachment":[{"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/media?parent=22"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/categories?post=22"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hsflanges.com\/blog\/wp-json\/wp\/v2\/tags?post=22"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}