美標(biāo)鋼制止回閥
【簡(jiǎn)單介紹】
【詳細(xì)說(shuō)明】
⊙標(biāo)準(zhǔn)閥座密封
·設(shè)計(jì)制造:鑄鋼止回閥按照BS 1868、ASME B16.34、API 6D;
鍛鋼止回閥按照API 602
·驗(yàn)收和檢驗(yàn):API 598, API 600 or API 6D
·法蘭連接尺寸:ASME B16.5( for NPS≤24),
ASME B16.47 series B、API 605
ASME B16.47 A系列、MSS SP-44 (for NPS>24)
·對(duì)焊端:ASME B16.25
·承插焊端:ASME B16.11
·結(jié)構(gòu)長(zhǎng)度:ASME B16.10
·溫壓等級(jí):ASME B16.34
·壁厚標(biāo)準(zhǔn):API 600 、 BS 1868
⊙止回閥結(jié)構(gòu)特點(diǎn)
·栓接閥蓋
·旋啟式和升降式閥瓣
·金屬閥座密封面
⊙閥體和閥蓋連接形式
采用栓接閥蓋;Class6~Class2500也可采用自壓密封式閥蓋。
⊙閥蓋墊片形式
采用不銹鋼石墨纏繞墊片或金屬環(huán)墊,自密封的采用自密封墊。
⊙閥座設(shè)計(jì)
碳 鋼止回閥閥座通常采用鍛鋼材料,閥座密封面可根據(jù)客戶要求噴焊硬質(zhì)合金,NPS≤10"的止回閥采用分離式螺紋旋入式閥座,如果用戶需要焊閥座結(jié)構(gòu)也可提 供;NPS≥12"止回閥采用焊閥座結(jié)構(gòu);不銹鋼止回閥的閥座一般采用整體式或者在本體上焊硬質(zhì)合金后直接加工閥座。如果用戶有需求,不銹鋼閘止回閥座也 可采用分離式螺紋旋入式和焊接閥座結(jié)構(gòu)。
⊙采用標(biāo)準(zhǔn)Standards
設(shè)計(jì)和制造Design&Manufacture:BS 1868 or API 6D 對(duì)焊連接端口尺寸BW End Dimension:ASME B16.25
檢驗(yàn)和試驗(yàn) Inspection&Test:API 598 or API 6D 結(jié)構(gòu)長(zhǎng)度Face To Face(End To End):ASME B16:10
法蘭連接尺寸End Flange Dimension: ASME B16.5, 溫壓等級(jí) Pressure-Temperature Ratings:ASME B16.34 ASME B16.47A、MSS SP-44, ASME B16.47B、API 605 壁厚尺寸Wall Thickness Dimension: API 600&BS1868
⊙零部件材料Parts&Material List
序號(hào) Parts No. | 零件名稱 Parts Name | 材質(zhì)Material | ||||
WCB/Trim 1 | WCB/Trim 5 | WCB/Trim 8 | CF8/304 | CF8M/316 | ||
1 | 閥體 Body | ASTM A216 WCB | ASTM A216 WCB | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF8M |
2 | 閥座 Seat Ring | A105+13Cr | A105+STL | A105+STL | ASTM A351 CF8 | ASTM A351 CF8M |
3 | 閥瓣 Disc | ASTM A216 WCB+13Cr | ASTM A216 WCB+STL | ASTM A216 WCB+13Cr | ASTM A351 CF8 | ASTM A351 CF8M |
4 | 軸 Arm | ASTM A216 WCB | ASTM A216 WCB | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF8M |
5 | 螺母 Nut | ASTM A194 2H | ASTM A194 2H | ASTM A194 2H | ASTM A194 8 | ASTM A194 8M |
6 | 銷 Arm Pin | ASTM A182 F6a | ASTM A182 F6a | ASTM A182 F6a | ASTM A182 F304 | ASTM A182 F316 |
7 | 支架 Yoke | ASTM A216 WCB | ASTM A216 WCB | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF8M |
8 | 閥蓋螺母 Bonnet Nut | ASTM A194 2H | ASTM A194 2H | ASTM A194 2H | ASTM A194 8 | ASTM A194 8M |
9 | 閥蓋螺栓 Bonnet Bolt | ASTM A193 B7 | ASTM A193 B7 | ASTM A193 B7 | ASTM A193 B8 | ASTM A193 B8M |
10 | 螺栓 Bolt | ASTM A193 B7 | ASTM A193 B7 | ASTM A193 B7 | ASTM A193 B8 | ASTM A193 B8M |
11 | 墊片 Gasket | 304+Graphite | 304+Graphite | 304+Graphite | 304+Graphite | 304+Graphite |
12 | 閥蓋 Bonnet | ASTM A216 WCB | ASTM A216 WCB | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF8M |
13 | 活節(jié)螺栓 Eye Bolt | ASTM A181 | ASTM A181 | ASTM A181 | ASTM A181 | ASTM A181 |
備注:表中所列的材料是通用止回閥的零件材料表,我們可以根據(jù)用戶的不同需求提供適合不同工況的產(chǎn)品。
Note: The chart above only lists out some common composition of steel check valve parts. We may provide other different parts material composition according to the customer’s request or the actual valve working condition.