技术参数：

                    品牌：美国fisher费希尔

                    型号：627-576

                    新编码：627-1217-29998

                    连接方式：180°内螺纹

                    口径尺寸：DN50

                    阀口尺寸：1/2”

                    进口压力：可达250PSI（17.2bar）

                    出口压力：5-20PSI

                    阀体材质：铸铁

                    单台重量：4.23kg

                    铭牌标签：

                    FISHER®  LOC477

                    TYPE

                    627-1217-29998

                    DATE 03 AUG 20

                    SERIAL  RO59064812

                    NO

                    RANGE  5-20PSI

                    ORIFICE    TRIM

                    1/2”      AL/NIT

                    性能特点：

                    灵敏的关闭特性

                    可选内置式安全放散装置

                    压力设定简单、调压精度高

                    可安装于任何位置

                    可用作大型调压器之负载调压

                    可用于天然气、人工煤气、液化石油气、空气等多种气体。