斯派莎克阀门 25P系列导阀型减压阀

　　斯派莎克阀门|25P系列导阀型减压阀DP17/DP17G导阀型隔膜式减压阀在普通减压阀的基础上做了很大的改进。膜片采用了新型材料，并大大加工了工作面积上海申弘阀门有限公司主营阀门有：减压阀(气体减压阀,可调式减压阀,波纹管减压阀,活塞式减压阀,蒸汽减压阀,先导式减压阀,空气减压阀,氮气减压阀,水用减压阀,自力式减压阀,比例减压阀)、安全阀、保温阀、低温阀、球阀、截止阀、闸阀、止回阀、蝶阀、过滤器、放料阀、隔膜阀、旋塞阀、柱塞阀、平衡阀、调节阀、疏水阀、管夹阀、排污阀、排气阀、排泥阀、气动阀门、电动阀门、高压阀门、中压阀门、低压阀门、水力控制阀、真空阀门、衬胶阀门、衬氟阀门。，因此阀门上游压力或下游负荷细微的变化都能及时准确的反馈到主阀膜片，来调节主阀的开度，确保下游压力的稳定。本产品的另一个突出的特点为：同一个阀体上可安装和互换多个导阀在稳压的同时，实现温度控制、上游压力的控制、远程的开关控制等。

　　斯派莎克阀门|25P系列导阀型减压阀

　　Many reducing valve problems are caused by the presence of moisture or dirt. A steam separator and strainer with fine mesh screen, if fitted before the valve, will help to prevent such problems. The strainer is fitted on its side to prevent the body filling with water and to ensure that the full area of the screen is effective. Large ***lation valves will also benefit from being installed on their side for the same reason.

　　All upstream and downstream pipework and fittings must be adequay sized to ensure that the only appreciable pressure drop occurs across the reducing valve itself. If the ***lating valves are the same size as the reducing valve connections, they will incur a larger pressure drop than if they are sized to match the correctly sized, larger diameters of the upstream and downstream pipework.

　　If the downstream pipework or any connected plant is incapable of withstanding the maximum possible upstream pressure, then a safety valve or relief valve must be fitted on the downstream side. This valve should be set at, or below, the maximum allowable working pressure of the equipment, but with a sufficient margin above its normal operating pressure. It must be capable of handling the full volume of steam that could pass through the fully open reducing valve, at the maximum possible upstream pressure.

　　斯派莎克阀门|25P系列导阀型减压阀