产品概述
限流孔板（减压用孔板）（Restriction Orifice）
DHRO-SHDHRO-MHDHRO-MS
限流孔板用于降低流体压力，其设计与流量测量用孔板有所不同。
限流孔板有几种类型：单孔板、具有多个分散孔的多孔板，以及用于高压、高温流体、将多块孔板焊接而成的多级孔板（Multistage Orifice）等。
限流孔板的孔边缘可通过司太立合金（Stellite）堆焊或渗氮处理（Nitrification）进行表面硬化。
Single / Multi Hole / Multi Stage1/2B ~ 24B (15A ~ 600A)ANSI 150 ~ 2500LB RTJStellite · 渗氮硬化
English description
The restriction orifices are used for reducing fluid pressure and are designed somewhat different the orifice plates that are used for measuring flow rates. There are some types of restriction orifices, including a single plate with a single hole, a single perforated plate (having diffused holes), and a set of welded multi orifices (a multistage orifice) which are used for high-pressure high-temperature fluids. The bore edge of the restriction orifices can be surface-hardened with stellite welding or by nitrification.
