用途               本阀广泛适用于石油、化工、制药、电力等行业，在公称压力≤1.0MPa的蒸汽、水、油类等介质的管路上，。性能及特点:                 1、闸阀是最常用的截断阀之一，主要用来接通或截断管路中的介质.阀门适用的压力、温度及口径范围很大，尤其适用于中、大口径的管道。                  2.  明杆闸阀的阀杆带动闸板一起升起降，阀杆上的传动螺纹在阀体外部，因此，可根据阀杆的运动方向和位置直观地判断闸板启闭和位置，而且传动螺纹便于润滑和不受流体腐蚀，但他要求较大的安装空间。                  3.  楔式刚性单闸板，尺寸小，使用比较可靠，他适用于常温、中温的各种介质和压力环境。 Use    The valves are widely used in petroleum, chemical, pharmaceutical, power and other industries, the nominal pressure ≤ 1.0MPa steam, water, oil and other media on the pipe.Performance and Characteristics:     1, gate is one of the most commonly used cut-off valve is mainly used to connect or disconnect the line of media. Valves for pressure, temperature and range of large diameter, especially for medium and large diameter pipe.   2. Out of the valve stem rod driven gate valve with rising drop, valve stem on the external drive thread in the body, therefore, can stem the movement direction and position of gate opening and visually determine the location andthread to facilitate transmission from fluid lubrication and corrosion, but he requested a large installation space.    3. Wedge rigid single-gate, small size, use of more reliable, he applied at room temperature, the temperature and pressure environment, a variety of media. 外形尺寸和连接尺寸:型号公称通径(mm)尺寸(mm)LDD1D2b-fz-ФdHD0Z44T-10 Z44W-10401651451108518-34-182401355018016012510020-34-182601806519518014512020-34-183001808021019516013522-34-1834520010023021518015522-38-1839520012525524521018524-38-1847824015028028024021024-38-2355824020033033529526526-38-2372032025038039035032028-312-2384532030042044040036828-412-2399040035045050046042830-416-23110040040048056551548232-416-25129250050054067062058534-420-251630720