四通法蘭球閥為X形垂直通道的球閥，它的特點是球體的兩條通道為X形布置，四個通道口徑均布于球體赤道圓周截面上，當球體沿順時針旋轉90時，能使相鄰的兩個通道實現兩兩互通。
介質流向原理
如圖所示，“LL’’型四通球閥只需操作板手或執行器將球體轉動90’，可同時對兩種介質的流向進行切換，即方便而迅速，實現一閥多用的效果。
主要零件材質
零件名稱 Accessory name | 材 質 Material | |
GB | ASTM | |
閥體、閥蓋 Body、bonnet | WCB | A216-WCB |
密封圈 Sealing Ring | PTFE、對位聚苯PTFE、Counterpoint polypheny1 | PTFE、對位聚苯PTFE、Counterpoint polypheny1 |
球體 Ball | 1Cr18Ni9Ti | SS 304 |
閥座、閥桿 Seat、Stem | 2Cr13 | A246-416 |
雙頭螺柱 Dual-head double-screw bolt | 35CrMoA | A193-B7 |
主要性能規范
公稱壓力 PN(MPa)Nominal diameter | 試驗壓力 Test pressure | |||
殼體 Shell | 高壓液密封High-pressure liquid sealing | 低壓氣密封 Low-pressure hermetic sealing | ||
1.6 | 2.4 | 1.76 | 0.6 | |
2.5 | 3.75 | 2.75 | ||
4.0 | 6.0 | 4.4 | ||
CLASS150 | 3.O | 2.2 | ||
適用工況 Applicable Operating Mode | 適用介質Applicable medium | 水、油品、氣等非腐蝕介質和酸堿腐蝕介質 Non-corrosion medium such as water, oil products, and gas, etc,ａnd nitric acid corrosion medium. | ||
適用溫度Applicable temperature | -28-350℃ | |||
應用規范 Applicable specification | 連接法蘭 Connecting flange | JB79-59、GB9113、HG20592-97、ANSI B16.5 | ||
檢驗試驗Test and inspection | GB9/T 9092-99、API 598 | |||
其余制造規范均按本廠標準 Other manufacturing standard is according to the standard of our factory. | ||||
主要外型與連接尺寸表
公稱壓力或壓力級 Nominal pressure | 主要尺寸Main dimension | 公稱通徑 | |||||||||||
15/1/2″ | 20/3/4″ | 25/1″ | 32/11/4″ | 40/11/2″ | 50/2″ | 65/21/2″ | 80/3″ | 100/4″ | 125/5″ | 150/6″ | 200/8″ | ||
PN1.6MFb | L | 150 | 150 | 180 | 200 | 220 | 240 | 260 | 280 | 320 | 380 | 440 | 550 |
PN2.5MFh | L1 | 75 | 75 | 90 | 100 | 110 | 120 | 130 | 140 | 160 | 190 | 220 | 275 |
PN4.0MFb | H | 90 | 90 | 102 | 115 | 135 | 140 | 155 | 185 | 210 | 275 | 305 | 335 |
CLASS150 | W | 140 | 140 | 155 | 250 | 250 | 350 | 350 | 420 | 700 | 1000 | 1300 | 1800 |
其余的法蘭尺寸請參閱樣本 | |||||||||||||
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