进口截止阀—上海首强阀门进口截止阀系列产品：高压截止阀。高温截止阀。高压高温截止阀。电动截止阀J941H/J961Y。气动截止阀J641H。气动角座阀。日标截止阀J41W。德标截止阀。美标截止阀J41W。保温截止阀BJ41H/BJ45。高温截止阀J41Y/J61Y。高压截止阀J41H、对焊截止阀J61Y/J65Y/J64H。高温高压截止阀。Y形截止阀J45/J65Y。自密封截止阀J41W/J61W。黄铜截止阀J11W。铸铁截止阀J41TW。铸钢截止阀J41H。锻钢截止阀。不锈钢截止阀J41W。铬钼钢截止阀J41Y-100I。波纹管截止阀WJ41/WJ44/WJ61H、保温波纹管截止阀BWJ41W。丝口截止阀J11W。法兰截止阀J41。氧气截止阀JY41W。真空截止阀NKJ41H/44H/J61。水封截止阀DS41H/DS61H。伞齿轮截止阀J541H。氨用截止阀J41B/J42B/J61B/J21B/J11B。角式截止阀J44H。衬氟截止阀J41F4/J45F4。衬胶截上阀J41J/J45J。塑料截止阀J41F-6S、J11F-6S。液化气截止阀J41F。天燃气截止阀J41N。低温截止阀DJ41W。撞击式大口径截止阀。蒸汽截止阀。斯派沙克式截止阀。节流阀、高压节流阀、截止节流平衡阀L41Y/L44Y/L46Y/L86Y/L87Y/L66Y/L67Y/L47Y。节流截止放空阀FJ41Y。节流截止排污阀TPJ41Y。 阀体的材质有: 铸铁、铸钢、不锈钢、锻钢、铬钼钢、铬钼钒钢。工作压力1.6-32MPA（美标从150LB-2500LB，日标从10K-64K）。工作温度-20℃- 550°C。阀门口径从DN15-DN300。连接方式:法兰、丝口或焊接。驱动方式:手动、电动、气动、伞齿轮、正齿轮转动。适用介质:水、油品、气、蒸汽等。截止阀简介:截止阀的启闭件是塞形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。阀杆的运动形式，有升降杆式（阀杆升降，手轮不升降），也有升降旋转杆式（手轮与阀杆一起旋转升降，螺母设在阀体上）。截止阀只适用于全开和全关，不允许作调节和节流。