方泰鍛鋼截止閥有三種體蓋連接設(shè)計(jì)形式，種是體改螺栓連接，按這種連接設(shè)計(jì)形式設(shè)計(jì)的閥門(mén)，其閥體與閥蓋用螺栓連接，纏繞式墊片密封，優(yōu)點(diǎn)是便于維修。第二種是體蓋焊接連接，按這種連接形式設(shè)計(jì)的閥門(mén)，其閥體與閥蓋全焊密封，優(yōu)點(diǎn)是無(wú)外泄漏。第三種是壓力自緊式閥蓋，按這種連接設(shè)計(jì)形式設(shè)計(jì)的閥站，其閥體與閥蓋用螺紋連接，內(nèi)壓自密封環(huán)密封，優(yōu)點(diǎn)是內(nèi)部壓力越大，其密封性能越好。

Taitong forged steel globe valve has three types of bonnet.One is bolted,which the body is connected with bonnet by bolts and sealed by spiral gasket with advantanges of conveient maintenance;one is welded bonnet,which the body is fully welded with sealing bonnet of no leakege;another is pressure-in bonnet,which the body is screwed into the bonnet and seled by inner pressure-in ring with better sealing ability for higher pressure

設(shè)計(jì)結(jié)構(gòu)與特征
1、設(shè)計(jì)制造：按ANSI B16.34;API602;BS5352
2、連接端尺寸：1）承插孔尺寸按ANSI B16.11;JIS B2306  2)螺紋端尺寸按ANSI B1.20.1 BS21;ISO7/1;JIS B0203
3、閥門(mén)檢驗(yàn)和試驗(yàn)：按API598
4、材料：按AISI/ASTM的規(guī)定
5、主體材料：A105;F5;F11;F22;304;304L;316;316L;LF2...
6、標(biāo)記按MSS-SP-25

Design sturcture and feature
1.Design and manufacture:ANSI B16.11;API602;BS5352
2.Ends connection:1)SW dimension:ANSI B16.11;JIS B2306  2)Screwed dimension:ANSI B1.20.1 BS21;ISO7/1;JIS B0203
3.Valve inspection and test:API 598
4.Material according to AISI/ASTM
5.Body material:A105;F5;F11;F22;304;304L;316;316L;LF2...
6.Mark:MSS-SP-25

結(jié)構(gòu)和特征
1、全徑或縮徑
2、明桿支架式
3、自定心壓板壓套式
4、螺栓連接、全焊密封連接以及內(nèi)壓自緊式連接閥蓋
5、整體式上密封座
6.閥瓣可變換為節(jié)流型、針型、球型 和止回型

Structure and feature
1.Full bore or reduced bore
2.Outside screwed and yoke
3.Bushing type
4.Bolted,fully welded and pressure-in bonnet
5.Integral backseat
6.Disc changeable for choke type,needle type,ball type and check valve