{"id":219,"date":"2025-04-06T16:03:01","date_gmt":"2025-04-06T16:03:01","guid":{"rendered":"https:\/\/yfbvalves.com\/?p=219"},"modified":"2025-04-07T11:15:18","modified_gmt":"2025-04-07T11:15:18","slug":"forged-steel-bellow-seal-gate-valve-3","status":"publish","type":"post","link":"https:\/\/yfbvalves.com\/?p=219","title":{"rendered":"Forged Steel Bellow Seal Gate Valve"},"content":{"rendered":"

Introduction<\/b><\/strong><\/p>\n

Forged steel bellows\u00a0<\/b><\/strong>seal<\/b><\/strong>\u00a0<\/b><\/strong>gate<\/b><\/strong>\u00a0<\/b><\/strong>valve<\/b><\/strong>\u00a0is generally of small diameter, from DN15 to DN50.<\/b><\/strong><\/p>\n

It can be used in some high-pressure steam pipelines.<\/b><\/strong><\/p>\n

\u00a0<\/b><\/strong><\/p>\n

Advantage<\/b><\/strong><\/p>\n

Why\u00a0<\/b><\/strong>forged steel bellow seal\u00a0<\/b><\/strong>gate<\/b><\/strong>\u00a0valve much better in high pressure steam pipelines?<\/b><\/strong><\/p>\n

1, Forged steel bellow seal gate valve use the forging process.<\/b><\/strong>
\n<\/b><\/strong>The process of forging is better than that of casting, but the cost will be higher.<\/b><\/strong><\/p>\n

2,<\/b><\/strong>\u00a0The<\/b><\/strong>\u00a0<\/b><\/strong>Forging progress has no sand holes, so it is more resistant to\u00a0<\/b><\/strong>high pressure and high temperature.<\/b><\/strong><\/p>\n

3, , which is more corrosion resistant and have a longer service life.<\/b><\/strong><\/p>\n

4, bellow seal\u00a0<\/b><\/strong>gate\u00a0<\/b><\/strong>valves are lighter than normal\u00a0<\/b><\/strong>gate\u00a0<\/b><\/strong>valve in open and off.<\/b><\/strong><\/p>\n

\"forged
forged steel bellow seal gate valve<\/figcaption><\/figure>\n

Technical specification<\/b><\/strong><\/p>\n

Face to face :<\/b><\/strong>\u00a0<\/b><\/strong>DIN3202<\/b><\/strong>,ANSI,GB<\/b><\/strong><\/p>\n

Flange ends: DIN2543-2546<\/b><\/strong>, ANSI,GB<\/b><\/strong><\/p>\n

Design standard: DIN<\/b><\/strong>, GB, ANSI<\/b><\/strong><\/p>\n

Test& inspection: DIN3230<\/b><\/strong>,GB,ANSI<\/b><\/strong>\u00a0<\/b><\/strong><\/p>\n\n\n\n\n\n\n\n\n
Nominal Pressure<\/td>\nPN<\/td>\n<\/td>\n<\/tr>\n
Pressure test<\/td>\nStrength test<\/td>\n2PN<\/td>\nMPa<\/td>\n<\/tr>\n
Sealing test<\/td>\n1.5PN<\/td>\n<\/tr>\n
Gas seal test<\/td>\n0.8<\/td>\n<\/tr>\n
\u2014<\/td>\n\u2014<\/td>\n<\/tr>\n
Temputer<\/td>\n-20\u2103~425\u2103<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/b><\/strong><\/p>\n

Main Material(mostly) it can OEM<\/b><\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
NO.<\/td>\nPart name<\/td>\nMaterial<\/td>\n<\/tr>\n
1<\/td>\nBody<\/td>\nA105,F304,F316<\/td>\n<\/tr>\n
2<\/td>\nSeat<\/td>\nF304<\/td>\n<\/tr>\n
3<\/td>\nDisc<\/td>\n2Cr13\u3001Stl\u3001507L<\/td>\n<\/tr>\n
4<\/td>\nPin<\/td>\n2Cr13<\/td>\n<\/tr>\n
5<\/td>\nBellows<\/td>\nSS321\u3001SS316 ETC<\/td>\n<\/tr>\n
6<\/td>\nStem<\/td>\n1.4401\u30012Cr13<\/td>\n<\/tr>\n
7<\/td>\nGasket<\/td>\nFlexible graphite + stainless steel<\/td>\n<\/tr>\n
8<\/td>\nCover<\/td>\nGS-C25\u3001\u30011.4401\u3001SS321,SS304<\/td>\n<\/tr>\n
9<\/td>\nNut<\/td>\nASTM 194-2H\u3001A194-8<\/td>\n<\/tr>\n
10<\/td>\nDouble-headed bolt<\/td>\nASTM 194-B7\u3001A193-B8<\/td>\n<\/tr>\n
11<\/td>\nPacking<\/td>\n\u00a0BY Ply-wooden case<\/td>\n<\/tr>\n
12<\/td>\nGland<\/td>\nGS-C25\u30011.4301\u30011.4401<\/td>\n<\/tr>\n
13<\/td>\nLocator<\/td>\n1C25<\/td>\n<\/tr>\n
14<\/td>\nStem nut<\/td>\nCopper alloy\u3001D2\u3001BL2<\/td>\n<\/tr>\n
15<\/td>\nHand wheel<\/td>\nKTH330-08<\/td>\n<\/tr>\n
16<\/td>\nCap<\/td>\n1C45<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Connection Size (DN15-DN350)<\/b><\/strong><\/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\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PN 16<\/td>\n<\/tr>\n
DN<\/td>\nMain connection size<\/td>\n<\/tr>\n
L<\/td>\nD<\/td>\nD1<\/td>\nD2<\/td>\nb<\/td>\nf<\/td>\nH<\/td>\nn-\u03a6d<\/td>\n<\/tr>\n
15<\/td>\n130<\/td>\n95<\/td>\n65<\/td>\n45<\/td>\n16<\/td>\n2<\/td>\n197<\/td>\n4-\u03a614<\/td>\n<\/tr>\n
20<\/td>\n150<\/td>\n105<\/td>\n75<\/td>\n58<\/td>\n18<\/td>\n2<\/td>\n197<\/td>\n4-\u03a614<\/td>\n<\/tr>\n
25<\/td>\n160<\/td>\n115<\/td>\n85<\/td>\n68<\/td>\n18<\/td>\n2<\/td>\n205<\/td>\n4-\u03a614<\/td>\n<\/tr>\n
32<\/td>\n180<\/td>\n140<\/td>\n100<\/td>\n78<\/td>\n18<\/td>\n2<\/td>\n208<\/td>\n4-\u03a618<\/td>\n<\/tr>\n
40<\/td>\n200<\/td>\n150<\/td>\n110<\/td>\n88<\/td>\n18<\/td>\n3<\/td>\n230<\/td>\n4-\u03a618<\/td>\n<\/tr>\n
50<\/td>\n230<\/td>\n165<\/td>\n125<\/td>\n102<\/td>\n20<\/td>\n3<\/td>\n233<\/td>\n4-\u03a618<\/td>\n<\/tr>\n
65<\/td>\n290<\/td>\n185<\/td>\n145<\/td>\n122<\/td>\n22<\/td>\n3<\/td>\n254<\/td>\n4-\u03a618<\/td>\n<\/tr>\n
80<\/td>\n310<\/td>\n200<\/td>\n160<\/td>\n138<\/td>\n24<\/td>\n3<\/td>\n277<\/td>\n8-\u03a618<\/td>\n<\/tr>\n
100<\/td>\n350<\/td>\n235<\/td>\n180<\/td>\n158<\/td>\n24<\/td>\n3<\/td>\n365<\/td>\n8-\u03a618<\/td>\n<\/tr>\n
125<\/td>\n400<\/td>\n250<\/td>\n210<\/td>\n188<\/td>\n26<\/td>\n3<\/td>\n392<\/td>\n8-\u03a618<\/td>\n<\/tr>\n
150<\/td>\n480<\/td>\n285<\/td>\n240<\/td>\n212<\/td>\n28<\/td>\n3<\/td>\n420<\/td>\n8-\u03a622<\/td>\n<\/tr>\n
200<\/td>\n600<\/td>\n340<\/td>\n295<\/td>\n268<\/td>\n34<\/td>\n3<\/td>\n580<\/td>\n12-\u03a622<\/td>\n<\/tr>\n
250<\/td>\n650<\/td>\n405<\/td>\n355<\/td>\n320<\/td>\n33<\/td>\n3<\/td>\n750<\/td>\n12-\u03a625<\/td>\n<\/tr>\n
300<\/td>\n750<\/td>\n460<\/td>\n410<\/td>\n375<\/td>\n33<\/td>\n4<\/td>\n925<\/td>\n12-\u03a625<\/td>\n<\/tr>\n
350<\/td>\n850<\/td>\n520<\/td>\n470<\/td>\n435<\/td>\n34<\/td>\n4<\/td>\n1030<\/td>\n16-\u03a625<\/td>\n<\/tr>\n
PN 25<\/td>\n<\/tr>\n
15<\/td>\n130<\/td>\n95<\/td>\n65<\/td>\n45<\/td>\n16<\/td>\n2<\/td>\n197<\/td>\n4-\u03a614<\/td>\n<\/tr>\n
20<\/td>\n150<\/td>\n105<\/td>\n75<\/td>\n58<\/td>\n18<\/td>\n2<\/td>\n197<\/td>\n4-\u03a614<\/td>\n<\/tr>\n
25<\/td>\n160<\/td>\n115<\/td>\n85<\/td>\n68<\/td>\n18<\/td>\n2<\/td>\n205<\/td>\n4-\u03a614<\/td>\n<\/tr>\n
32<\/td>\n180<\/td>\n140<\/td>\n100<\/td>\n78<\/td>\n18<\/td>\n2<\/td>\n208<\/td>\n4-\u03a618<\/td>\n<\/tr>\n
40<\/td>\n200<\/td>\n150<\/td>\n110<\/td>\n88<\/td>\n18<\/td>\n3<\/td>\n230<\/td>\n4-\u03a618<\/td>\n<\/tr>\n
50<\/td>\n230<\/td>\n165<\/td>\n125<\/td>\n102<\/td>\n20<\/td>\n3<\/td>\n233<\/td>\n4-\u03a618<\/td>\n<\/tr>\n
65<\/td>\n290<\/td>\n185<\/td>\n145<\/td>\n122<\/td>\n22<\/td>\n3<\/td>\n254<\/td>\n8-\u03a618<\/td>\n<\/tr>\n
80<\/td>\n310<\/td>\n200<\/td>\n160<\/td>\n138<\/td>\n24<\/td>\n3<\/td>\n277<\/td>\n8-\u03a618<\/td>\n<\/tr>\n
100<\/td>\n350<\/td>\n235<\/td>\n190<\/td>\n162<\/td>\n24<\/td>\n3<\/td>\n355<\/td>\n8-\u03a622<\/td>\n<\/tr>\n
125<\/td>\n400<\/td>\n270<\/td>\n220<\/td>\n188<\/td>\n26<\/td>\n3<\/td>\n410<\/td>\n8-\u03a626<\/td>\n<\/tr>\n
150<\/td>\n480<\/td>\n285<\/td>\n240<\/td>\n212<\/td>\n28<\/td>\n3<\/td>\n420<\/td>\n8-\u03a626<\/td>\n<\/tr>\n
200<\/td>\n600<\/td>\n340<\/td>\n310<\/td>\n278<\/td>\n30<\/td>\n3<\/td>\n540<\/td>\n12-\u03a626<\/td>\n<\/tr>\n
250<\/td>\n650<\/td>\n405<\/td>\n355<\/td>\n335<\/td>\n32<\/td>\n3<\/td>\n750<\/td>\n12-\u03a630<\/td>\n<\/tr>\n
300<\/td>\n750<\/td>\n460<\/td>\n410<\/td>\n375<\/td>\n34<\/td>\n4<\/td>\n925<\/td>\n16-\u03a630<\/td>\n<\/tr>\n
350<\/td>\n850<\/td>\n520<\/td>\n470<\/td>\n435<\/td>\n34<\/td>\n4<\/td>\n1030<\/td>\n16-\u03a633<\/td>\n<\/tr>\n
PN 40<\/td>\n<\/tr>\n
15<\/td>\n130<\/td>\n95<\/td>\n65<\/td>\n45<\/td>\n16<\/td>\n2<\/td>\n195<\/td>\n4-\u03a614<\/td>\n<\/tr>\n
20<\/td>\n150<\/td>\n105<\/td>\n75<\/td>\n58<\/td>\n18<\/td>\n2<\/td>\n195<\/td>\n4-\u03a614<\/td>\n<\/tr>\n
25<\/td>\n160<\/td>\n115<\/td>\n85<\/td>\n68<\/td>\n18<\/td>\n2<\/td>\n207<\/td>\n4-\u03a614<\/td>\n<\/tr>\n
32<\/td>\n160<\/td>\n140<\/td>\n100<\/td>\n68<\/td>\n18<\/td>\n2<\/td>\n218<\/td>\n4-\u03a618<\/td>\n<\/tr>\n
40<\/td>\n180<\/td>\n150<\/td>\n110<\/td>\n78<\/td>\n18<\/td>\n3<\/td>\n225<\/td>\n4-\u03a618<\/td>\n<\/tr>\n
50<\/td>\n230<\/td>\n165<\/td>\n125<\/td>\n102<\/td>\n20<\/td>\n3<\/td>\n230<\/td>\n4-\u03a618<\/td>\n<\/tr>\n
65<\/td>\n290<\/td>\n185<\/td>\n145<\/td>\n122<\/td>\n22<\/td>\n3<\/td>\n272<\/td>\n8-\u03a618<\/td>\n<\/tr>\n
80<\/td>\n310<\/td>\n200<\/td>\n160<\/td>\n138<\/td>\n24<\/td>\n3<\/td>\n290<\/td>\n8-\u03a618<\/td>\n<\/tr>\n
100<\/td>\n350<\/td>\n235<\/td>\n190<\/td>\n162<\/td>\n24<\/td>\n3<\/td>\n355<\/td>\n8-\u03a622<\/td>\n<\/tr>\n
125<\/td>\n400<\/td>\n270<\/td>\n220<\/td>\n188<\/td>\n26<\/td>\n3<\/td>\n410<\/td>\n8-\u03a626<\/td>\n<\/tr>\n
150<\/td>\n480<\/td>\n300<\/td>\n250<\/td>\n218<\/td>\n28<\/td>\n3<\/td>\n425<\/td>\n8-\u03a626<\/td>\n<\/tr>\n
200<\/td>\n600<\/td>\n340<\/td>\n310<\/td>\n278<\/td>\n34<\/td>\n3<\/td>\n540<\/td>\n12-\u03a630<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Introduction Forged steel bellows\u00a0seal\u00a0gate\u00a0valve\u00a0is ge […]<\/p>\n","protected":false},"author":1,"featured_media":220,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,9,11],"tags":[],"class_list":["post-219","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product","category-gate-valves","category-special-function-valve"],"acf":[],"_links":{"self":[{"href":"https:\/\/yfbvalves.com\/index.php?rest_route=\/wp\/v2\/posts\/219","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yfbvalves.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yfbvalves.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yfbvalves.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yfbvalves.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=219"}],"version-history":[{"count":1,"href":"https:\/\/yfbvalves.com\/index.php?rest_route=\/wp\/v2\/posts\/219\/revisions"}],"predecessor-version":[{"id":221,"href":"https:\/\/yfbvalves.com\/index.php?rest_route=\/wp\/v2\/posts\/219\/revisions\/221"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yfbvalves.com\/index.php?rest_route=\/wp\/v2\/media\/220"}],"wp:attachment":[{"href":"https:\/\/yfbvalves.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yfbvalves.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yfbvalves.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}