译文：
一、旋塞阀的维修技巧： 1、旋塞阀所有采用焊接操作的维修和对焊接的维修必须使用符合ASME第IX节标准要求的焊工和焊接工艺。 2、所有焊接包括对焊口的维修都应采用低氢焊接工艺。焊接维修应按照经过批准的工艺进行，对主要焊口的维修则需要经过拥有人的同意。 3、旋塞阀对铸件的焊接维修应放在生产热处理之前完成。焊接维修或是对焊口的维修必须要在任何xx金属应力的热处理工艺之前完成。 4、对于在铸件上的维修需要进行硬度试验，因为会出现跨越焊口、热影响区和母材的微小硬度横移。采用500克负荷进行测量的{zg}维氏硬度值应为310 HV。 5、对于全部维修过的疵点应采用原先用来检测疵点的相同NDE方法，并按相同标准进行检测。 6、焊接之前，应使用合适的工具对准备焊接的位置进行清理，去除泥土或金属碎屑。对于深度达到被修物体厚度20%以上的疵点，不得进行维修。 二、旋塞阀的安装技巧： 1、只要地点允许，旋塞阀应尽量保持接近基准面。 2、所有安装在高于地面、操作平台或其它易于接触位置2100毫米或更高的工作阀门都应能够让人锤击到其工作的皮带轮。锤击皮带轮应装有U-型夹板，而不能是J-型螺栓夹板。 3、阀门应既能适合于立式位置安装，也能卧式位置安装。

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原文：
1, Plug Valve repair techniques: 1, plug valves for all welding operations with maintenance and repair welding must be used in accordance with ASME section IX section of the standard requirements of welders and welding processes. 2, all the welding, including the maintenance of the welded joint should be using low hydrogen welding process. Welding repairs should be carried out in accordance with an approved process, the maintenance of the main welded joint is need to go through the owner's consent. 3, stopcock on casting should be placed on the production of welding repairs completed before the heat treatment. Welding repair or maintenance of the welded joint must be the elimination of metal stress in any completed before the heat treatment process. 4, for the casting of maintenance required on the hardness test, as it will appear across the welded joints, heat-affected zone and base material of the micro-hardness traverse. Using 500 g load to measure the maximum Vickers hardness value should be 310 HV. 5, for all the repairs of the defects had previously used to detect defects should be the same NDE methods, according to the same standard for testing. 6, prior to welding, you should use the appropriate tools to prepare the location of weld clean up, remove dirt or metal debris. For the depth of the thickness of an object has been revised more than 20% of the defects may not be repaired. Second, plug valves installation techniques: 1, as long as the location permits, plug valves should keep close to base level. 2, all installed above the ground, operating platform or other easy-to-contact position 2100 millimeters or more people working the valve should be able to hammer into their work pulley. Hammer pulley should be fitted with U-type splint, but can not be a J-type bolt splint. 3, the valve should be installed both for vertical position, horizontal position can also be installed.