译文：
高压法兰连接钢制闸阀产品用途 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。 高压法兰连接钢制闸阀产品结构特点 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。 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。 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。 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。 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。 高压法兰连接钢制闸阀产品标准 设计与制造：GB12234 结构长度：GB12221 压力温度等级：GB9131GB/T74HG20604 连接法兰：JG/T79GB9113HG20593-20635 试验与检验：GB13927JB/T9092

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原文：
High-pressure flange steel gate valve product use Apply high-pressure flange steel gate valve Nominal pressure PN10.0 ~ 25.0Mpa, working temperature -29 ℃ ~ 600 ℃ oil, chemical, fire station and other conditions of the pipeline, cut off or connected media. Flanged steel pressure valve for medium: water, oil, steam and so on. Mode of operation are: manual, gear transmission, electric and so on. Flanged steel gate valve pressure characteristics of the product structure 1. High-pressure flange steel gate valves meet the requirements of domestic and foreign advanced standards, reliable sealing, excellent performance and beautiful shape. 2. Ram and the valve seat sealing surface of iron based alloy or stellite (stellite) made of cobalt-based alloy welding, wear-resistant, high temperature, corrosion, anti-abrasion performance, long life . 3. High-pressure flange valve stem quenched and the nitrogen treatment, with good corrosion resistance and scratch resistance out. 4. Valve with flexible wedge gate structure, medium and large caliber set the bearings, friction is small, open and close easily. 5. Adopt a variety of standard piping flanges and flange sealing surface types to meet various project needs and user requirements. Flanged steel pressure valve product standards Design and manufacture: GB12234 Structure length: GB12221 Pressure temperature rating: GB9131GB/T74HG20604 Flange: JG/T79GB9113HG20593-20635 Test and inspection: GB13927JB/T9092