上海祝茂阀门生产以下几种压力和材质：

美标截止阀YJ41W-150LB、美标截止阀YJ41W-150LBQ、美标截止阀YJ41W-150LBC、美标截止阀YJ41W-150LBP、美标截止阀YJ41W-150LBR

美标截止阀YJ41W-300LB、美标截止阀YJ41W-300LBQ、美标截止阀YJ41W-300LBC、美标截止阀YJ41W-300LBP、美标截止阀YJ41W-300LBR

美标截止阀YJ41W-600LB、美标截止阀YJ41W-600LBQ、美标截止阀YJ41W-600LBC、美标截止阀YJ41W-600LBP、美标截止阀YJ41W-600LBR

其压力有以下口径：YJ41W-600LBDN15氧气法兰式截止阀、YJ41W-600LBDN20氧气法兰式截止阀、YJ41W-600LBDN25氧气法兰式截止阀、YJ41W-600LBDN32氧气法兰式截止阀、YJ41W-600LBDN40氧气法兰式截止阀、YJ41W-600LBDN50氧气法兰式截止阀、YJ41W-600LBDN65氧气法兰式截止阀、YJ41W-600LBDN80氧气法兰式截止阀、YJ41W-600LBDN100氧气法兰式截止阀、YJ41W-600LBDN125氧气法兰式截止阀、YJ41W-600LBDN150氧气法兰式截止阀、YJ41W-600LBDN200氧气法兰式截止阀、YJ41W-600LBDN250氧气法兰式截止阀、YJ41W-600LBDN300氧气法兰式截止阀、YJ41W-600LBDN350氧气法兰式截止阀、YJ41W-600LBDN400氧气法兰式截止阀、YJ41W-600LBDN450氧气法兰式截止阀、YJ41W-600LBDN500氧气法兰式截止阀、YJ41W-600LBDN600氧气法兰式截止阀、YJ41W-600LBDN700氧气法兰式截止阀、YJ41W-600LBDN800氧气法兰式截止阀；

其压力有以下口径：YJ41W-300LBDN15氧气法兰式截止阀、YJ41W-300LBDN20氧气法兰式截止阀、YJ41W-300LBDN25氧气法兰式截止阀、YJ41W-300LBDN32氧气法兰式截止阀、YJ41W-300LBDN40氧气法兰式截止阀、YJ41W-300LBDN50氧气法兰式截止阀、YJ41W-300LBDN65氧气法兰式截止阀、YJ41W-300LBDN80氧气法兰式截止阀、YJ41W-300LBDN100氧气法兰式截止阀、YJ41W-300LBDN125氧气法兰式截止阀、YJ41W-300LBDN150氧气法兰式截止阀、YJ41W-300LBDN200氧气法兰式截止阀、YJ41W-300LBDN250氧气法兰式截止阀、YJ41W-300LBDN300氧气法兰式截止阀、YJ41W-300LBDN350氧气法兰式截止阀、YJ41W-300LBDN400氧气法兰式截止阀、YJ41W-300LBDN450氧气法兰式截止阀、YJ41W-300LBDN500氧气法兰式截止阀、YJ41W-300LBDN600氧气法兰式截止阀、YJ41W-300LBDN700氧气法兰式截止阀、YJ41W-300LBDN800氧气法兰式截止阀；

其压力有以下口径：YJ41W-150LBDN15氧气法兰式截止阀、YJ41W-150LBDN20氧气法兰式截止阀、YJ41W-150LBDN25氧气法兰式截止阀、YJ41W-150LBDN32氧气法兰式截止阀、YJ41W-150LBDN40氧气法兰式截止阀、YJ41W-150LBDN50氧气法兰式截止阀、YJ41W-150LBDN65氧气法兰式截止阀、YJ41W-150LBDN80氧气法兰式截止阀、YJ41W-150LBDN100氧气法兰式截止阀、YJ41W-150LBDN125氧气法兰式截止阀、YJ41W-150LBDN150氧气法兰式截止阀、YJ41W-150LBDN200氧气法兰式截止阀、YJ41W-150LBDN250氧气法兰式截止阀、YJ41W-150LBDN300氧气法兰式截止阀、YJ41W-150LBDN350氧气法兰式截止阀、YJ41W-150LBDN400氧气法兰式截止阀、YJ41W-150LBDN450氧气法兰式截止阀、YJ41W-150LBDN500氧气法兰式截止阀、YJ41W-150LBDN600氧气法兰式截止阀、YJ41W-150LBDN700氧气法兰式截止阀、YJ41W-150LBDN800氧气法兰式截止阀；

祝茂阀门还可生产以下同类产品：

J41美标截止阀、截止型排污阀、J741液动截止阀、J11丝口截止阀、WJ41波纹管截止阀、J741液压截止阀、J41长杆截止阀、青铜截止阀、J941电动截止阀、J41杠杆式截止阀、J61承插截止阀、J45直通截止阀、J41暗杆截止阀、黄铜截止阀、日标截止阀

卫生级截止阀、J41国标截止阀、平衡截止阀、J41F46衬氟截止阀、J45直流截止阀、DS/J41水封截止阀、GJM1压力表截止阀、J41法兰截止阀、J41液化气截止阀、UJ41柱塞截止阀、J41节能截止阀、陶瓷截止阀、排液截止阀、SJ41低温截止阀、J41高压截止阀

聚丙烯截止阀、UJ41无泄漏截止阀、J41F46防腐蚀截止阀、NKJ真空截止阀、J13针型截止阀、J641气动截止阀、截止换向阀、J641气动截止阀、J41锻钢截止阀

J41不锈钢截止阀、YJ41氧气截止阀、J41空调截止阀、J61电站截止阀、J61焊接截止阀、自密封截止阀、BJ41保温截止阀、JJY1卡套截止阀、J41铸铁截止阀

J41B氨截止阀、J41J衬里截止阀、J41高温截止阀、J11螺纹截止阀、J11内螺纹截止阀、JJY1管路截止阀、J41德标截止阀、自紧截止阀、J541齿轮截止阀、J21外螺纹截止阀、J41手动截止阀、J11丝扣截止阀、J44角式截止阀、J44直角截止阀、J24直角截止阀

J41美标截止阀、J741液动截止阀、J11丝口截止阀、WJ波纹管截止阀、J741液压截止阀、J41长杆截止阀、青铜截止阀、J941电动截止阀、J41杠杆式截止阀、J61承插截止阀、J45直通截止阀、J41暗杆截止阀、黄铜截止阀、J41日标截止阀、卫生级截止阀

J41国标截止阀、平衡截止阀、J41衬氟截止阀、J45直流截止阀、DS/J41水封截止阀、JJM1压力表截止阀、J41法兰截止阀、J41液化气截止阀、UJ41柱塞截止阀

节能截止阀、陶瓷截止阀、排液截止阀、DJ41低温截止阀、J41高压截止阀、聚丙烯截止阀、UJ41无泄漏截止阀、J41防腐蚀截止阀、NKJ真空截止阀、J11针型截止阀、J41锻钢截止阀、J41不锈钢截止阀、YJ41氧气截止阀、J41空调截止阀、J61电站截止阀

J61焊接截止阀、J61自密封截止阀、BJ41保温截止阀、JJY1卡套截止阀、J41铸铁截止阀、J41B氨截止阀、J41J衬里截止阀、J41高温截止阀、J21螺纹截止阀、J11内螺纹截止阀、JJY1管路截止阀、德标截止阀、J61自紧截止阀、J541齿轮截止阀、J21外螺纹截止阀、J41手动截止阀、J22丝扣截止阀、J44角式截止阀、J61焊接式阀盖、J61电站截止阀、J41国标截止阀、J41锻钢截止阀、J41锻钢截止阀、DN10 ～150mm真空隔离截止阀、BJ45 型保温截止阀、J44H/Y 角式截止阀 / 节流阀、J641H-16/25/40/64 气动截止阀、J41H/W 法兰式截止阀、J41F46-16 截止阀、JL41HY 型角式高压截止阀

J11H 型内螺纹截止阀、JL41HY 型锻钢截止阀、J41H 型法兰截止阀

API 截止阀、J41F46-16 截止阀、J45F46-16 直流截止阀

J41H 型法兰截止阀、JL41HY 型角式高压截止阀、WJ41H 型精铸波纹管截止阀

J41B 型氨截止闸、J41H 型钢制法兰截止阀、J941H 型电动截止阀

高温高压 Y 型截止阀、J41N 型液化气截止阀、J41HD-16C倒密封截止阀

J41H-16 铸铁截止阀、J45F46-16 直流截止阀、GB-200WOG 不锈钢截止阀（B型）

法兰连接钢制 API 美标截止阀、J941 法兰铸钢截止阀、UJ41H 柱塞截止阀

J44H 角式截止阀、J41-16 截止阀、JHT6B6Y 油田专用阀

J966Y 电动平衡截止阀、J66Y 平衡式截止阀、JT68Y 多级平衡调节阀

THJ86Y 油田专用阀、J41Y-150LbJ41H-150Lb美标截止阀、J41H-150LbJ41Y-150Lb美标截止阀

QJ41M-16/25 截止阀、JY41W-16/25/40 铜氧气 截止阀、J41Y-16/25/40/64/100 截止阀

J41H.T-10 16 25 40 截 止 阀、J41H J941H 截止阀、150-1500(Lb)Y 型截止阀

J11H(Y) J61H(Y) 锻钢截止阀、J11H-16/25/40C螺纹连接型截止阀、J61H-16/25/40C焊接型截止阀

J41H-16/25/40C法兰连接型截止阀、J41F-10/16 衬氟式型截止阀、J41H/W 法兰式截止阀

WJ41H-16 波纹管截止阀、J41H-300LBJ41H-300LB截止阀、YJ41Y-40 截止阀

J41H/W/Y 截止阀、J41H 型新型结构液化气截止阀、J961Y 电站截止阀

API 美标法兰截止阀、J21W-160/320 截止阀、J21H-25/40/64/100/160/320 截止阀

J66H/Y 截止阀、J41H-150LB美标截止阀、JLH 型三合一 截止阀

J41W-150LB美标 截止阀、J41B 氨用截止阀、WJ41H/W 波纹管截止阀

J45H/W 法兰直流式截止阀、AJ41Y 美标法兰截止阀、J961Y 国标电站截止阀

J965Y 型截止阀、J65Y-200-320III高温高压直流截止阀、J65Y-200-320III高温高压直流截止阀、J41W-16 不锈钢截止阀、J41H-40 J41B-40 截止阀、JN41F-16C/25C/40C软密封截止阀、J11X-16T 黄铜截止阀 ( 热锻 )、J41FS 直通式衬里截止阀、J11W 丝口截止阀

J41N液化气专用截止阀、J41H-150Lb美标截止阀、J11X-16T 黄铜截止阀 ( 热锻 )

J41N液化气专用截止阀、J41 T/W/H/F-16 型截止阀、JY 4146W-40TP 氧气截止阀

WJ21H 外螺纹波纹管截止阀、J41FS46 衬聚全氟乙炳烯截止阀、J61 承插焊截止阀

J94 角式卡套截止阀、YSF 截止阀、J29 压力计截止阀

DJ61F-40P 低温截止阀、J11T/X-16 内螺纹截止阀、J24X-6T 黄铜角式截止阀

J41W/J41X-16T 黄铜水控式截止阀、QJ41M-16/25 截止阀、JY41W-16/25/40 铜氧气 截止阀

J41Y-16/25/40/64/100 截止阀、J641H-16/25/40/64 气动截止阀、J41Y-150Lb美标截止阀

YJ43H/Y 锻钢 Y 型截止阀、WJ/Z41H/Y 锻钢波纹管阀门、法兰连接 ANSI 铸钢截止阀

DN10 ～200mm法兰连接钢制截止阀、JLH41H/Y 截止/节流/止回多功能阀、WJ41W 国标波纹管截止阀

GFYP4Y 型料浆阀、JL47H/Y 平衡角式截止 / 节流阀、DN10 ～150mm水封截止阀

J/L11W 手动截止阀、J41W/Y 不锈钢法兰截 止阀、

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。

截止阀属于强制密封式阀门，所以在阀门关闭时，必须向阀瓣施加压力，以强制密封面不泄漏。当介质由阀瓣下方进入阀六时，操作力所需要克服的阻力，是阀杆和填料的磨擦力与由介质的压力所产生的推力，关阀门的力比开阀门的力大，所以阀杆的直径要大，否则会发生阀杆顶弯的故障。近年来，从自密封的阀门出现后，截止阀的介质流向就改由阀瓣上方进入阀腔，这时在介质压力作用下，关阀门的力小，而开阀门的力大，阀杆的直径可以相应地减少。同时，在介质作用下，这种形式的阀门也较严密。我国阀门“三化给”曾规定，截止阀的流向，一律采用自上而下。

截止阀具有以下优点：

1. 结构简单，制造和维修比较方便。
2. 工作行程小，启闭时间短。

密封性好，密封面间磨擦力小，寿命较长。

截止阀开启时，阀瓣的开启高度，为公称直径的25%～30%时，流量已达到最大，表示阀门已达全开位置。所以截止阀的全开位置，应由阀瓣的行程来决定。