J641F46衬氟气动截止阀基本结构 1、塑料衬里J41型直通式、J45型直溜式、J44型角式截止阀、具有结构紧凑、启闭灵活、耐腐蚀性能强，行程短（一般为公称通经1/4）等优点。被广泛应用在石油、化工等管路系统中做截断介质用，但塑料衬里的截止阀严禁用做流量调节，以免节流口处产生的高速介质流冲蚀破坏密封面。 2、阀瓣与阀杆设计为一体结构，用以防止由于管路压力波动造成内件冲出阀体的可能性，结构紧凑，使用安全。 
J641F46衬氟气动截止阀设计规范 遵循GB/T 12233，GB/T12235，ANSI B 16.34标准 驱动方式 手动、蜗轮转动、气动(常开或常闭)、电动 | 序号 | 零件名称 | 灰铸铁 | 铸钢 | 不锈耐酸铸钢 | 超低碳不锈耐酸铸钢 | | Z | C | P | R | PL | RL | | 1 | 阀体/阀盖 | HT250 | WCB | CF8 | CF8M | CF3 | CF3M | | 2 | 球体/阀杆 | 25 | 2Cr13 | 1Cr18Ni9 | 1Cr18Ni12Mo2Ti | 00Cr18Ni10 | 00Cr17Ni14Mo2 | | 3 | 衬里/阀座 | PCTEF(F3),FEP(F46),PFA(可溶F4),PP,PO | | 4 | 填料压盖 | WCB | CF8 | CF8M | CF3 | CF3M | | 5 | 填料 | PTFE(F4) | PTFE(F4) | PTFE(F4) | | 6 | 活节螺栓 | 35 | 1Cr17Ni2 | 1Cr17Ni2 | | 7 | 阀杆螺母 | ZCuAl10Fe3 | ZCuAl10Fe3 | ZCuAl10Fe3 | | 8 | 紧固螺栓 | 35 | 1Cr17Ni2 | 1Cr18Ni9Ti | | 9 | 螺母 | 45 | 0Cr18Ni9 | 0Cr18Ni9 | | 10 | 手柄 | WCB | WCB | WCB |
| 公称通经 | L | D | D1 | D2 | f | b | Z-φd | | DN(mm) | NPS(inch) | PN1.0MPa | | 15 | 1/2 | 130 | 95 | 65 | 45 | 2 | 14 | 4-φ14 | | 20 | 3/4 | 150 | 105 | 75 | 55 | 2 | 16 | 4-φ14 | | 25 | 1 | 160 | 115 | 85 | 65 | 2 | 16 | 4-φ14 | | 32 | 11/4 | 180 | 135 | 100 | 78 | 2 | 18 | 4-φ18 | | 40 | 11/2 | 200 | 145 | 110 | 85 | 3 | 18 | 4-φ18 | | 50 | 2 | 230 | 160 | 125 | 100 | 3 | 20 | 4-φ18 | | 65 | 21/2 | 290 | 180 | 145 | 120 | 3 | 20 | 4-φ18 | | 80 | 3 | 310 | 195 | 160 | 135 | 3 | 22 | 4-φ18 | | 100 | 4 | 350 | 215 | 180 | 155 | 3 | 22 | 8-φ18 | | 125 | 5 | 400 | 245 | 210 | 185 | 3 | 24 | 8-φ18 | | 150 | 6 | 480 | 280 | 240 | 210 | 3 | 24 | 8-φ23 | | 200 | 8 | 495 | 335 | 295 | 265 | 3 | 26 | 8-φ23 | | 250 | 10 | 622 | 390 | 350 | 320 | 3 | 28 | 12-φ23 | | 300 | 12 | 698 | 440 | 400 | 368 | 4 | 28 | 12-φ23 | | 350 | 14 | 787 | 500 | 460 | 428 | 4 | 30 | 16-φ23 | | PN1.6MPa | | 15 | 1/2 | 130 | 95 | 65 | 45 | 2 | 14 | 4-φ14 | | 20 | 3/4 | 150 | 105 | 75 | 55 | 2 | 16 | 4-φ14 | | 25 | 1 | 160 | 115 | 85 | 65 | 2 | 16 | 4-φ14 | | 32 | 11/4 | 180 | 135 | 100 | 78 | 2 | 18 | 4-φ18 | | 40 | 11/2 | 200 | 145 | 110 | 85 | 3 | 18 | 4-φ18 | | 50 | 2 | 230 | 160 | 125 | 100 | 3 | 20 | 4-φ18 | | 65 | 21/2 | 290 | 180 | 145 | 120 | 3 | 20 | 4-φ18 | | 80 | 3 | 310 | 195 | 160 | 135 | 3 | 22 | 8-φ18 | | 100 | 4 | 350 | 215 | 180 | 155 | 3 | 24 | 8-φ18 | | 125 | 5 | 400 | 245 | 210 | 185 | 3 | 26 | 8-φ18 | | 150 | 6 | 480 | 280 | 240 | 210 | 3 | 28 | 8-φ23 | | 200 | 8 | 495 | 335 | 295 | 265 | 3 | 30 | 12-φ23 | | 250 | 10 | 622 | 405 | 355 | 320 | 3 | 32 | 12-φ25 | | 300 | 12 | 698 | 460 | 410 | 375 | 4 | 34 | 12-φ25 | | PN2.5MPa | | 15 | 1/2 | 130 | 95 | 65 | 45 | 2 | 16 | 4-φ14 | | 20 | 3/4 | 150 | 105 | 75 | 55 | 2 | 16 | 4-φ14 | | 25 | 1 | 160 | 115 | 85 | 65 | 2 | 16 | 4-φ14 | | 32 | 11/4 | 180 | 135 | 100 | 78 | 2 | 18 | 4-φ18 | | 40 | 11/2 | 200 | 145 | 110 | 85 | 3 | 18 | 4-φ18 | | 50 | 2 | 230 | 160 | 125 | 100 | 3 | 20 | 4-φ18 | | 65 | 21/2 | 290 | 180 | 145 | 120 | 3 | 22 | 8-φ18 | | 80 | 3 | 310 | 195 | 160 | 135 | 3 | 22 | 8-φ18 | | 100 | 4 | 350 | 230 | 190 | 160 | 3 | 24 | 8-φ23 | | 125 | 5 | 400 | 270 | 220 | 188 | 3 | 28 | 8-φ25 | | 150 | 6 | 480 | 300 | 250 | 218 | 3 | 30 | 8-φ25
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