原文：
　      水封闸阀适用于工作压力1.6~10.0MPa，工作温度0~425℃的火力电站回水冷凝系统及石油、化工要求与大气隔离的管道上，切断或接通介质，适用介质为：水、油品、蒸汽和非腐蚀气体等。

         一、特点及用途 1、S/Z型系列启闭灵活、迅速、密封可靠电动球阀，通常采用双闸板双向弹性密封； 2、产品结构简单、紧凑合理、检修方便、使用寿命较长； 3、在管路上作启闭装置用，必须处于全开或全闭状态，不得用于调节流量； 4、阀门连接方式有法兰和焊接两种，驱动方式为手动和电动、结构较复杂。 阀门按密封面配置可分为楔式闸板式闸阀和平行闸板式闸阀，楔式闸板式闸阀单闸极式、双闸板式和弹性闸板式。 平行闸板式闸阀可分为单闸板式和双闸板式。 按阀杆的螺纹位置划分，电动闸阀可分为明杆闸阀和暗杆闸阀两种。

        二、水封闸阀的设计与制造标准 设计与制造：GB12234 法兰尺寸：GB9113JB7490 压力温度：电动蝶阀JB/T74GB9131 结构长度：GB/T12221 检验与试验：JB/T9092GB13927

         三、主要性能规范 公称压力(MPa) 壳体强度试验1.01.62.54.06.410.0 密封试验1.52.43.86.09.615.0 上密封试验1.11.82.84.47.011.0 气密封试验1.11.82.84.47.011.0 适用范围 产品类型适用温度(℃)适用介质 碳钢型≤425水、蒸汽、电动截止阀油品、非腐蚀性气体 合金型≤540 四、主要零件材料 产品类型零件名称 阀体、阀盖、支架阀杆闸板、电动调节阀阀瓣、密封面阀座密封面阀杆螺母填料 合金钢(I)WCBCr5Mol20Cr1Mo1VA钴基合金硬质合金铝青铜柔性石墨 碳钢型(C)WCB1Cr13或2Cr13Cr13型不锈钢或硬质合金不锈钢铝青铜柔性石墨

“ Water seal gate valve features, applications, design and standards ”是由中国闸阀网提供的阀门行业新闻，译文仅供参考。另外，中国闸阀网还提供相关产品搜索： 电动闸阀、 手动闸阀、 气动闸阀、 不锈钢闸阀、 美标凸耳闸阀等。

译文：
          Water seal gate valves suitable for working pressure 1.6 ~ 10.0MPa, work temperature 0 ~ 425 ℃ of the fire station cooling system return water and oil, chemical requirements and atmospheric isolation pipe, cut off or connected media, for media: water, oil, steam and non-corrosive gases. 1, characteristics and uses 1, S / Z series opening and closing a flexible, rapid, reliable seal, usually a two-way double plate flexible seal; 2, the product structure is simple, Reducing Valvescompact and reasonable, easy maintenance, long service life; 3, in the pipeline for opening and closing devices, must be in the fully open or fully closed state, shall not be used to regulate traffic; 4, valve connections are flanged and welding two, drive mode to manual and electric, structure is more complicated. Valve by sealing surface configuration can be divided into wedge gate-type valve and parallel to the gate-type valve, gate valve wedge gate-type single-gate, dual gate plate and thePlug Valves flexible gate-type. Parallel slide gate valve can be divided into single-ram type and double plate. Position by the valve stem threads are divided into clear and dark bar bar gate valve two. Second, water seal valve design and manufacturing standards Design and manufacture: GB12234 Flange Size: GB9113JB7490 Pressure and Temperature: JB/T74GB9131 Structure Length: GB/T12221 Inspection and testing: JB/T9092GB13927 Third, the main performance Balance Valvesspecifications Nominal pressure (MPa) Shell strength test 1.01.62.54.06.410.0 Seal test 1.52.43.86.09.615.0 The seal test 1.11.82.84.47.011.0 Gas seal test 1.11.82.84.47.011.0 Scope Product type forSafety valves temperature v(℃) for medium Carbon-based ≤ 425 water, steam, oil, non-corrosive gases Alloy type ≤ 540 4, the main part materials Product Type Parts Name Body, bonnet, support stem gate, flap valve, valve seat sealing surface sealing surface stem packing nut Alloy steel (I) WCBCr5Mol20Cr1Mo1VA carbide cobalt-based alloy aluminum bronze flexible graphite Carbon-type (C) WCB1Cr13 or 2Cr13Cr13 stainless steel or hard alloy aluminum bronze stainless steel flexible graphite

原文来源：http://www.1zhafa.com/

2010-08-31 07:13

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