美国阿姆斯壮GP2000蒸汽先导式减压阀现货优势,厂家直销 上海阿姆斯壮Armstrong阀门，美国Armstrong减压阀，阿姆斯壮GP2000减压阀，阿姆斯壮GP2000蒸汽减压阀 GP-2000 系列先导薄膜式蒸汽减压阀 以前，先导式减压阀在其主阀操作部主要是使用活塞， 但随着时代的要求，蒸汽系统的质量不断提高，也要求减压阀具有更高的控制性能。GP-2000蒸汽减压阀在其主阀操作部取代活塞， 使用膜片，先导薄膜式提高Cv值，对一次侧压力变化和二次负荷的变动也具有更高的控制性能。 阿姆斯壮GP2000减压阀特点 · 较大减压比高这20: 1 ， 过去的两段减压现在用一段即可实现。 · 由于膜片大，又采用外部检测构造，可以控制稳定的二次侧压力。 · 由于Cv值大，流量及控制能力的飞跃提高， 比通常的公称通径小 1~2个号码的产品也可使用。 · 由于阀门为单球形，其密封性提高，渗漏量极少。 . 可管理0.02MPa以下的低压。 GP-2000 Externally Piloted Pressure-Reducing Valves For steam service The GP-2000 is a high-performance, externally piloted reducing valve for large-capacity requirements. Typical use is on intermittent service, including applications such as heat exchangers, steam coils, rotating dryers, process equipment and heating systems. With a 20:1 rangeability and high Cv, the GP-2000 is reliable and accurate ( /-1% of pressure set point from 5% to of flow) over a long, trouble-free service life. Hardened stainless steel working parts are renewable in-line. The GP-2000 is single-seated for dead-end service, and it is available with both NPT (1/2"–2") (15–50 mm) and flanged connections in 2"–6" sizes (50–150 mm). GP2000蒸汽减压阀