原文：
产品介绍： ● 运用液压原理控制调节，结构简单 ● 减压比例准确， 大流量通行 ● 既减动压， 也减静压 ● 运行平稳无噪音、无震动、消减水锤、保护管网 ● 适用于任意角度安装 ● 重量轻、体积小、安装维修方便 工作原理： 在进口压力P1的作用下，浮动活塞被推开，介质通过。由于活塞两端截面积不同而造成的压力差改变了阀后的压力，也就是在管路有压力的情况下，活塞两端的面积比构成了阀前与阀后的压力比。无论阀前压力如何变化，阀后静压及动压按比例可减至相应的压力值。 主要性能和零部件： 零件名称 材质 阀体、限位座 铸铁、不锈钢、锡青铜 活塞 不锈钢、锡青铜、合金铝 胶垫 丁腈橡胶、三元乙丙 O型圈 硅橡胶、三元乙丙 主要技术性能： 工作压力（MPa) 1.0 1.6 强度试验（MPa) 1.5 2.4 密封试验（MPa) 1.1 1.76 工作温度（℃） ≤80、≤150 用途 工业、生活给水、空调、采暖及消防系统

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译文：
Description: ● regulate the use of hydraulic principles of control, simple structure ● decompression ratio of accurate, high-volume access ● both by the dynamic pressure, static pressure is also reduced ● run smooth no noise, no vibration, reduce water hammer, pipe protection ● Suitable for installation at any angle ● Light weight, small volume, convenient installation and maintenance How it works: The role of P1 in the inlet pressure, the floating piston is pushing the media through. As the piston cross-sectional area at both ends of the pressure difference caused by different changes in the pressure after the valve, which is in the pipeline are under pressure, both ends of the piston constitutes a valve area ratio before and after the pressure ratio valve. No matter how the valve before the pressure changes, static and dynamic pressure of the valve can be reduced in proportion to the corresponding pressure value. Key Features and components: Part Name Material Valve, limit seat cast iron, stainless steel, tin bronze Pistons stainless steel, bronze, aluminum alloy Mat NBR, EPDM Silicone rubber O-ring, EPDM Main Technical Performance: Working pressure (MPa) 1.0 1.6 Strength test (MPa) 1.5 2.4 Seal Test (MPa) 1.1 1.76 Operating temperature (℃) ≤ 80, ≤ 150 Use of industrial, domestic water, air conditioning, heating and fire systems