不锈钢闸阀具备流动阻力小，适用工作压力、环境温度大等优点，是一种常用截断阀，用以断开或接入管道里的物质。管径收拢可以使零件规格变小，开、闭需要力相对应减少，同时还可以扩张零部件的应用领域。但管径收拢后。流动阻力损害扩大。低电压闸阀广泛采用是指生铁原材料，生铁闸阀经常产生阀体冻破、闸板掉下来等风险难题，生铁闸阀的碳素钢阀座易生锈，填充料密封垫质量不好，里外泄露比较严重。
The stainless steel gate valve has the advantages of small flow resistance, high applicable working pressure and ambient temperature. It is a common block valve used to disconnect or connect the material in the pipeline. Pipe diameter collapse can reduce the size of parts, reduce the opening and closing force, and expand the application field of parts. But after the pipe diameter is closed. The damage of flow resistance is enlarged. The wide use of low voltage gate valves in China refers to the raw materials of pig iron. The pig iron gate valves often produce risk problems such as valve body freezing, gate plate falling, etc. The carbon steel valve seat of the pig iron gate valve is easy to rust, the quality of the filler gasket is poor, and the internal and external leakage is relatively serious.
不锈钢闸阀的结构特点能够简要概括为下述四点：
The structural characteristics of stainless steel gate valve can be summarized as follows:
1、重量较轻：本身采用球黑生铁做成，净重较传统式闸阀净重缓解约20~30百分比，安装维修便捷。
1. Light weight: it is made of nodular black pig iron, and its net weight is about 20~30% slower than that of traditional gate valve, which is convenient for installation and maintenance.
2、总体包塑：闸板采用高质量的塑胶开展总体内、外包塑，塑胶与球墨铸铁铸闸板然后牢固，不容易掉下来及延展性记忆力佳。
2. Overall plastic coating: the ram is made of high-quality plastic for overall internal and external plastic coating. The plastic and ductile iron cast ram is then firm, which is not easy to fall off and has good ductility and memory.

3、厚底式闸座：传统闸阀往往会在通清洗管后立即因外在因素例如石块，物块、混凝土、铁销、脏物等沉积于阀底凹形槽内，易造成没法关掉密切而产生渗水状况，弹力座封闸阀底端采用与自来水管机同的厚底设计方案，不容易导致脏物沉积，使液体畅行无阻。
3. Thick-bottomed gate seat: Traditional gate valves often deposit in the concave groove at the bottom of the valve due to external factors such as stones, blocks, concrete, iron pins, dirt, etc. immediately after passing through the cleaning pipe, which is easy to cause water seepage due to the inability to close. The bottom end of the resilient seat sealing gate valve adopts the same thick bottom design scheme as the water pipe machine, which is not easy to cause dirt deposition and make the liquid flow smoothly.
4、铸造阀体：阀体采用高精铸件，准确的结构尺寸促使阀体内部结构不需要任何深度加工就可以确保阀体的密闭性。
4. Cast valve body: the valve body is made of high-precision casting, and the accurate structure size makes the internal structure of the valve body not require any deep processing to ensure the tightness of the valve body.
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