一、PQ340F/H/Y偏心半球閥產品概述
PQ340F/H/Y偏心半球閥是一種連接方式采用法蘭,由閥體、偏心球體、主(從)動軸、上(下)軸套、球冠、壓圈、內(外)閥座等主要部件組成,它通過轉動蝸輪機構帶動偏心曲軸旋轉90°來實現閥門的啟閉,起到對介質的調節和嚴密截斷的作用。
PQ340F/H/Y偏心半球閥利用偏心閥體、偏心半球和閥座、閥桿作旋轉運動時在共同軌跡自動定心,關閉過程越關越緊,達到良好的密封目的。閥門的球體和閥座脫離,消除了密封圈的磨損,克服了傳統球體閥座與球體密封面始終磨損的問題,非金屬彈性材料被嵌入金屬座中,閥座金屬面受到良好的保護,其解決了工業生產中的漿狀、混流液體、灰塵等介質在管道輸送中沉淀、易結垢、阻塞等問題。
二、PQ340F/H/Y偏心半球閥主要零部件材料表
序號 | 零件名稱 | 材料名稱 | |||
1 | 閥體 | WCB | ZG1Cr18Ni9Ti | ZG0Cr18Ni12Mo2Ti | ZG15Cr1Mo1V |
2 | 閥蓋 | WCB | ZG1Cr18Ni9Ti | ZG0Cr18Ni12Mo2Ti | ZG15Cr1Mo1V |
3 | 球體 | WCB+硬鉻 | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti | 25Cr2Mo1V |
4 | 閥桿 | 20Cr13 | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti | 25Cr2Mo1V |
5 | 閥座 | Q235A+PTFE/堆焊 | 1Cr18Ni9Ti/PTFE | 0Cr18Ni12Mo2Ti/PTFE | 25Cr2Mo1V/PTFE |
6 | 填料 | 柔性石墨 | 柔性石墨 | 柔性石墨 | 柔性石墨 |
7 | 螺栓 | 35CrmoA | 0Cr18Ni9 | 0Cr18Ni9 | 15Cr1Mo1V |
8 | 螺母 | 45 | 0Cr18Ni9 | 0Cr18Ni9 | 20CrMo |
三、PQ340F/H/Y偏心半球閥主要性能規范表
公稱壓力(MPa) | 0.6 | 1.0 | 1.6 | 2.5 | 4.0 |
公稱通經(mm) | 40-1600 | 40-1600 | 40-1200 | 40-600 | 40-600 |
密封試驗壓力(MPa) | 0.66 | 1.1 | 1.76 | 2.75 | 4.4 |
殼體試驗壓力(MPa) | 0.9 | 1.5 | 2.4 | 3.75 | 6.0 |
四、PQ340F/H/Y偏心半球閥主要外形尺寸表
公稱壓力 PN(MPa) | 公稱通徑 DN(mm) | 尺寸(mm) | ||||||
L | D | D1 | D2 | b | f | Z-φd | ||
0.6 | 50 | 178 | 140 | 110 | 90 | 16 | 3 | 4-14 |
65 | 190 | 160 | 130 | 110 | 16 | 3 | 4-14 | |
80 | 203 | 190/185 | 150 | 125 | 18 | 3 | 4-18 | |
100 | 229 | 210/205 | 170 | 145 | 18 | 3 | 4-18 | |
125 | 254 | 240/235 | 200 | 175 | 20 | 3 | 8-18 | |
150 | 267 | 265/260 | 225 | 200 | 20 | 3 | 8-18 | |
200 | 292 | 320/315 | 280 | 255 | 22 | 3 | 8-18 | |
250 | 330 | 375/370 | 335 | 310 | 24 | 3 | 12-18 | |
300 | 356/502 | 440/435 | 395 | 362 | 24 | 4 | 12-23 | |
350 | 430/575 | 490/485 | 445 | 412 | 26 | 4 | 12-23 | |
400 | 530/610 | 540/535 | 495 | 465 | 28 | 4 | 16-23 | |
450 | 580/660 | 595/590 | 550 | 518 | 28 | 4 | 16-23 | |
500 | 630/711 | 645/640 | 600 | 568 | 30 | 4 | 16-23 | |
600 | 787 | 755 | 705 | 670 | 30 | 5 | 20-26 | |
700 | 900 | 840 | 710 | 775 | 32 | 5 | 24-26 | |
800 | 1000 | 975 | 920 | 880 | 32 | 5 | 24-30 | |
1.0 | 50 | 178 | 160 | 125 | 100 | 16 | 3 | 4-18 |
65 | 190 | 180 | 145 | 120 | 18 | 3 | 4-18 | |
80 | 203 | 195 | 160 | 135 | 20 | 3 | 4-18 | |
100 | 229 | 215 | 180 | 155 | 20 | 3 | 8-18 | |
125 | 254 | 245 | 210 | 185 | 22 | 3 | 8-18 | |
150 | 267 | 280 | 240 | 210 | 24 | 3 | 8-23 | |
200 | 292 | 335 | 295 | 265 | 24 | 3 | 8-23 | |
250 | 330 | 390 | 350 | 320 | 26 | 3 | 12-23 | |
300 | 356/502 | 440 | 400 | 368 | 26 | 4 | 12-23 | |
350 | 430/575 | 500 | 460 | 428 | 28 | 4 | 16-23 | |
400 | 530/610 | 565 | 515 | 482 | 28 | 4 | 16-26 | |
450 | 580/660 | 615 | 565 | 532 | 30 | 4 | 20-26 | |
500 | 630/711 | 670 | 620 | 585 | 30 | 4 | 20-26 | |
600 | 787 | 780 | 725 | 685 | 34 | 5 | 20-30 | |
700 | 900 | 895 | 840 | 800 | 36 | 5 | 24-30 | |
800 | 1000 | 1015 | 950 | 905 | 36 | 5 | 24-34 | |
900 | 1100 | 1115 | 1050 | 976 | 38 | 5 | 28-33 | |
1000 | 1200 | 1230 | 1160 | 1080 | 38 | 5 | 28-36 | |
1.6 | 50 | 178 | 160 | 125 | 100 | 16 | 3 | 4-18 |
65 | 190 | 180 | 145 | 120 | 18 | 3 | 4-18 | |
80 | 203 | 195 | 160 | 135 | 20 | 3 | 8-18 | |
100 | 229 | 215 | 180 | 155 | 20 | 3 | 8-18 | |
125 | 254 | 245 | 210 | 185 | 22 | 3 | 8-18 | |
150 | 267 | 280 | 240 | 210 | 24 | 3 | 8-23 | |
200 | 292 | 335 | 295 | 265 | 26 | 3 | 12-23 | |
250 | 330 | 405 | 355 | 320 | 30 | 3 | 12-26 | |
300 | 356/502 | 460 | 410 | 375 | 30 | 4 | 12-26 | |
350 | 430/575 | 520 | 470 | 435 | 34 | 4 | 16-26 | |
400 | 530/610 | 580 | 525 | 485 | 36 | 4 | 16-30 | |
450 | 580/660 | 640 | 585 | 545 | 40 | 4 | 20-30 | |
500 | 630/711 | 705 | 650 | 608 | 44 | 4 | 20-34 | |
600 | 787 | 840 | 770 | 718 | 48 | 5 | 20-41 | |
700 | 900 | 910 | 840 | 788 | 50 | 5 | 24-41 | |
800 | 1000 | 1020 | 950 | 898 | 52 | 5 | 24-41 | |
900 | 1100 | 1120 | 1050 | 998 | 54 | 5 | 28-41 | |
1000 | 1200 | 1255 | 1170 | 1110 | 56 | 5 | 28-42 | |
2.5 | 50 | 178 | 165 | 125 | 100 | 3 | 20 | 4-18 |
65 | 190 | 185 | 145 | 120 | 3 | 22 | 8-18 | |
80 | 203 | 200 | 160 | 135 | 3 | 22 | 8-18 | |
100 | 229 | 230 | 190 | 160 | 3 | 24 | 8-23 | |
125 | 254 | 270 | 220 | 188 | 3 | 28 | 8-25 | |
150 | 267 | 300 | 250 | 218 | 3 | 30 | 8-25 | |
200 | 292 | 360 | 310 | 278 | 3 | 34 | 12-25 | |
250 | 330 | 425 | 370 | 332 | 3 | 36 | 12-30 | |
300 | 356/502 | 485 | 430 | 390 | 4 | 40 | 16-30 | |
350 | 430/572 | 555 | 490 | 448 | 4 | 44 | 16-34 | |
400 | 530/610 | 620 | 550 | 505 | 4 | 48 | 16-34 | |
450 | 580/660 | 670 | 600 | 555 | 4 | 50 | 20-34 | |
500 | 630/711 | 730 | 660 | 610 | 4 | 52 | 20-41 | |
600 | 787 | 845 | 770 | 718 | 5 | 56 | 20-41 | |
700 | 900 | 960 | 875 | 815 | 5 | 60 | 24-48 | |
800 | 1000 | 1085 | 990 | 930 | 5 | 64 | 24-48 | |
900 | 1100 | 1185 | 1090 | 1025 | 5 | 66 | 28-48 | |
1000 | 1200 | 1320 | 1210 | 1140 | 5 | 68 | 28-58 | |
4.0 | 50 | 178 | 165 | 125 | 100 | 88 | 20 | 4-18 |
65 | 190 | 185 | 145 | 120 | 110 | 22 | 8-18 | |
80 | 203 | 200 | 160 | 135 | 121 | 22 | 8-18 | |
100 | 229 | 235 | 190 | 160 | 150 | 24 | 8-23 | |
125 | 254 | 270 | 220 | 188 | 176 | 28 | 8-25 | |
150 | 267 | 300 | 250 | 218 | 204 | 30 | 8-25 | |
200 | 292 | 375 | 320 | 282 | 260 | 38 | 12-30 | |
250 | 330 | 450 | 385 | 345 | 313 | 42 | 12-34 | |
300 | 356/502 | 515 | 450 | 408 | 364 | 46 | 16-34 | |
350 | 430/572 | 580 | 510 | 465 | 422 | 52 | 16-34 | |
400 | 530/610 | 660 | 585 | 535 | 474 | 58 | 16-41 | |
450 | 580/660 | 685 | 610 | 560 | 524 | 60 | 20-41 | |
500 | 630/711 | 755 | 670 | 612 | 576 | 62 | 20-48 | |
600 | 787 | 890 | 795 | 730 | 678 | 62 | 20-54 | |
700 | 900 | 995 | 900 | 835 | 768 | 68 | 24-54 | |
800 | 1000 | 1135 | 1030 | 960 | 876 | 76 | 24-58 |
五、PQ340F/H/Y偏心半球閥主要結構圖
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