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API止▲回▲(Huí)●閥●

止回閥(Fá)是指啟閉件為圓形[Xíng]閥瓣并靠自◈身◈重∇量∇及介質壓力産生動(Dòng)作來阻斷▾介▾質(Zhì)倒流[Liú]的一[Yī]種閥門。
  • 産[Chǎn]品應用[Yòng]

産品執行标準

類型API 598設計與制造結構(Gòu)長度◈法◈蘭尺寸壓(Yā)力[Lì] -溫度試驗(Yàn) -檢驗
旋啟式止回閥ANSI B16.34ANSI B16.10ANSI B16.15ANSI B16.34API 598
升降式止(Zhǐ)回閥    BSI 868


  産品性▾能▾規範


公稱壓力150300600900
強度試驗MPa3.17.8151323.1
Lbf/in2450112522253350
水密封試驗MPa2.2
5.611.216.8
Lbf/in231581516302440
氣密封(Fēng)試驗MPa0.5~0.7
Lbf/in260~100

主要零件材料[Liào]



體、蓋、瓣、搖杆、◈導◈向套銷軸墊片密封面工[Gōng]作(Zuò)溫度适用介▽質▽
WCB2Cr13

增[Zēng]加柔性▲石▲[Shí]墨

1Cr13,柔性石墨

不鏽鋼,耐酸[Suān]石[Shí]棉(Mián)

13Cr

STL

本體材料

PTFE

尼龍[Lóng]

≤425

水、蒸汽、∆油∆

品、硝(Xiāo)酸類、

醋酸[Suān]◈類◈、強氧化

介質、尿素[Sù]

WC1≤450
WC6≤540
WC9≤570
C5 C12≤550
CF8304≤600
CF3316
CF8M304L
CF3M316L

主要(Yào)外形和連接○尺○[Chǐ]寸 單位:mm


NPSDNClass150Lb/300Lb/600LbWT
inmmLDD1D2bZ-φdH
2″50203157120.79219.504-1916117
21/2″65216178139.710522.54-1918023
3″80241190.5152.4127244-1919033
4″100292
229190.50157.2248-1922044
6″150356
279241.521625.58-22.525778
8″200495
343298.5270298-22.5292137
10″250622
40636232430.512-25350207
12″300698
4834323813212-25398279
14″350787
533476.184133512-29445
387
16″400864597539.847037
16-29490
446
18″450978635577.853340
16-32520621
20″5009786986355844320-32546770
24″6001295813749.36924820-35880
970
2″502671651279222.58-19179.520
21/2″65292190150
105
25

8-22

190
24
3″8031821016812729.08-22.5212.440
4″10035625420015732.012-22.524651
6″150445317.5269.721637.012-22.529290
8″20053338133027041.512-22.5328175
10″250622444.538732448.016-28.5378.6210
12″30071152145138151.016-32420
286
14″350838584514545420-32470400
16″400864648572575720-35530550
18″450978711629606024-35584700
20″5001016775686646424-35610860
24″6001346914813707024-418601931
2″5029216512792258-1920334
21/2″65330190150105298-2222945
3″80356210168127328-2223563
4″100432273216157388-25286114
6″150599356292216488-29330207
8″2006604193492705612-29381387
10″2507875084323246412-32457580
12″3008385594893816716-35584778
14″3508896035274137020-386359869
16″4009916866034707620-416841380

  


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  • API止回閥

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