DP27导阀型隔膜式减压阀为球墨铸铁材质阀体，主阀阀芯，导阀阀芯阀座，内部弹簧及滤网等均匀不锈钢材质。适用于蒸汽和压缩空气系统。压力调节比可达10：1，控制准确。当压力调节范围超过10：1时，应采用两个减压阀串联布置。DP27G为软阀座型号，用于压缩空气系统，或其它工业气体（不适用于氧气）。DP27减压阀可在用一主阀体上组合多个导阀，用于实现两级压力控制，温度压力控制，远程调控等多种功能。常用规格有DN15-50，PN1.6/2.5MPa，使用工作温度DP27≤232℃,DP27G≤120℃，压力调节范围（锥形弹簧）0.02-1.7MPa。

性能指标：

主要技术参数：

主要零件材料：

流量系数（Cv）：

Cv（UK）=Kv × 0.963 Cv（US）=Kv × 1.156
 

DP27 pilot valve diaphragm type pressure reducing valve for ductile iron valve, the main valve spool, a pilot valve spool valve seat, an internal spring and uniform stainless steel filter. Applicable to steam and compressed air system. Pressure regulating ratio of 10:1, accurate control. When the pressure regulating range is over 10:1, should adopt two pressure reducing valves are arranged in series. DP27G soft seat models, used in compressed air systems, or other industrial gases （not applicable to oxygen ）. DP27 relief valve can be used in a main valve body assembly of a plurality of pilot valve, used to achieve level two pressure control, temperature and pressure control, remote control and other functions. Common specifications have DN15-50, PN1.6/2.5MPa, DP27 use temperature≤ 232 ℃, DP27G ≤120 ℃, pressure regulating range （ 0.02-1.7MPa conical spring ）.

Performance index:

Main technical parameters:

Materials for main parts:

Flow coefficient （ Cv ）:

Cv （ UK ） =Kv× 0.963 Cv （ US ） =Kv × 1.156

Connection size: