HRS和HRSB型检修阀
GEA service valves and GEA Needle Valves are designed to attach additional devices such as manometers to heating and refrigeration systems. Therefore they are available with various types of connections. They have a locking function that can be operated with a handwheel or a ratchet. With valve types HRS and HRSN, the stem is sealed by means of a screw bush. With valve type HRSB, the stem sealing is provided by a threaded bush and a metal bellows for completely hermetic sealing. The valves are also equipped with a back seal. When the valve is fully open, it is possible to replace the threaded bush and the seal without interrupting operation.
Service Valve type HRSB
HRS检修阀 | HRSB检修阀 | |
设计 | 直线型或角型 | 直线型或角型 |
材料 | 钢或不锈钢 | 钢或不锈钢 |
标称尺寸 | DN 8-15 | DN 8-15 |
标称压力水平 | PS 63 | PS 40 |
温度范围 | -60 °C 至 +150 °C | -60 °C 至 +150 °C |
连接 | 对焊端 DIN, ANSI 螺纹端 | 对焊端 DIN, ANSI 螺纹端 |
其他 | 可变连接 | 可变连接 |
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