The opening and closing component of Z41H cast steel flange gate valve is the gate, and the movement direction of the gate is perpendicular to the fluid direction. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. When the gate valve is closed, the sealing surface can be sealed solely by the pressure of the medium, that is, the sealing surface of the gate is pressed against the valve seat on the other side by the pressure of the medium to ensure the sealing of the sealing surface.
Z41H铸钢法兰闸阀的启闭件是闸板，闸板的运动方向与流体方向相垂直，闸阀只能作全开和全关，不能做调节和节流。闸阀关闭时，密封面可以只依靠介质压力来密封，即只依靠介质压力将闸板的密封面压向另一侧的阀座来保证密封面的密封。

Z41H cast steel gate valve is suitable for cutting off or connecting pipeline media in various systems of petroleum, chemical, hydraulic, and thermal power plants with nominal pressure PN1.6~16.0MPa and working temperature ≤ -29 ℃~550 ℃. Manual flange gate valves are suitable for media such as water, oil, steam, acid, alkali, ammonia, urea, and sulfur-containing natural gas. The operation modes include manual, gear transmission, electric, pneumatic, etc.
Z41H铸钢闸阀适用于公称压力PN1.6～16.0MPa,工作温度≤-29℃～550℃的石油、化工、水力、火力电站多种系统的管路上，切断或接通管路介质。手动法兰闸阀适用介质为：水、油品、蒸气、及酸、碱、氨、尿素、含硫天然气等。操作方式有：手动、齿轮传动、电动、气动等。

Z41H cast steel flange gate valve features:
1. Compliant with domestic and international standards, reliable sealing, excellent performance, and beautiful appearance;
2. The sealing surface of the gate and valve seat is welded with cobalt based alloy or Stellite cobalt based alloy, which has good wear resistance, high temperature resistance, corrosion resistance, abrasion resistance, and long service life;
3. Adopting a wedge-shaped elastic gate structure, with rolling bearings installed on medium and large diameters, the switch is flexible and easy to open and close;
4. The valve body material variety is complete, and the packing and gasket can be reasonably selected according to actual working conditions or customer requirements, which can be suitable for various pressure, temperature, and medium working conditions.
Z41H铸钢法兰闸阀节阀特点：
1、符合国内外标准，密封可靠，性能优良，造型美观；
2、闸板、阀座密封面用钴基合金堆焊或司太立钴基合金堆焊而成，耐磨、耐高温、耐腐蚀、抗擦伤性能好、使用寿命长；
3、采用楔式弹性闸板结构，中大口径设置滚动轴承，开关灵活，启闭轻松；
4、阀体材料品种齐全，填料、垫片可根据实际工况或客户要求合理选配，能适用于各种压力、温度及介质工况。

Main performance parameters of Z41H cast steel flange gate valve

Z41H cast steel flange gate valve main component materials

Z41H cast steel flange gate valve main zero shape and connection dimensions

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