高压法兰钢制闸阀适用于公称压力PN10.0～25.0Mpa，工作温度—29℃～600℃的石油、化工、火力电站等各种工况的管路上，切断或接通介质。高压法兰连接钢制闸阀适用介质为：水、油品、蒸汽等。操作方式有：手动、齿轮传动、电动等。
The high-pressure flange steel gate valve is suitable for cutting off or connecting the pipeline at various working conditions, such as the nominal pressure PN10.0 to 25.0Mpa, the working temperature, 29 ~ 600 ~ C, petroleum, chemical industry, thermal power station and so on. The suitable medium for connecting steel gate valves with high pressure flange is water, oil, steam and so on. Operation methods are: manual, gear transmission, electric and so on.
高压法兰连接钢制闸阀产品结构特点
Product structure characteristics of steel gate valve connected by high pressure flange
1.高压法兰连接钢制闸阀符合国内外先进标准的要求，密封可靠，性能优良，造型美观。
1. high pressure flange connection steel gate valve meets the requirements of advanced standards at home and abroad. It is reliable in sealing, excellent in performance and beautiful in shape.
2.闸板与阀座密封面用铁基合金堆焊或司太立(stellite)钴基硬质合金堆焊而成，耐磨、耐高温，耐腐蚀，抗擦伤性能好、使用寿命长。
Iron based alloy surfacing or Stellite 2. gate and valve seat sealing surface (Stellite) cobalt based alloy welding and become, abrasion resistance, corrosion resistance, high temperature, good anti abrasion performance, long service life.
3.高压法兰闸阀阀杆经调质和表面氮化处理，有良好的搞腐蚀性和抗擦伤性。
3. high pressure flange valve stem is treated by quenching and surface nitriding, and has good corrosion resistance and abrasion resistance.
4.闸阀采用楔式弹性闸板结构，中大口径设置滚动轴承，摩擦力小、启闭轻松。
The 4. gate valve adopts the wedge type elastic gate structure, the medium and large caliber set rolling bearing, and the friction force is small and the opening and closing are easy.
5.可采用各种配管法兰标准及法兰密封面型式，满足各种工程需要及用户要求。
5. a variety of pipe flange standard and flange seal face type can be used to meet all kinds of engineering needs and user requirements.
高压法兰连接钢制闸阀产品标准
High pressure flange connection steel gate valve product standard
设计与制造：GB12234
Design and manufacture: GB12234
结构长度：GB12221
Structure length: GB12221
压力温度等级：GB9131GB/T74HG20604
Pressure temperature grade: GB9131GB/T74HG20604
连接法兰：JG/T79GB9113HG20593-20635
Connecting flange: JG/T79GB9113HG20593-20635
试验与检验：GB13927JB/T9092
Test and test: GB13927JB/T9092