顺时针旋转阀杆,将使阀盘降低到阀座上,从而关闭管道,逆时针旋转将提升阀盘并打开管道。调节功能由阀盘底部的锥体实现。锥体的最大直径对应于阀门的标称直径。对于 HRAR 型,阀杆密封由带弹簧弹性 PTFE 环的螺纹衬套提供。对于 HRAB 型,阀杆密封由螺纹衬套和金属波纹管提供,确保完全密封。这些阀门还配备有后密封件,因此当阀门完全打开时,可以更换螺纹衬套和密封件。
| HRAR调节阀 | HRAR调节阀 | |
| 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 6-250 | DN 10-250 |
| 标称压力水平 | PS 25, PS 40, PS 63, PS 160 | PS 25, PS 40 |
| 温度范围 | -60 °C 至 +150 °C | -60 °C 至 +150 °C |
| 连接 | 符合 DIN 和 ANSI 标准的对焊和法兰端,钎焊端,螺纹端 | 符合 DIN 和 ANSI 标准的对焊和法兰端,钎焊端,螺纹端 |
| 附加信息 | 可提供盖板延长件 | 可提供盖板延长件 |
GEA’s past fiscal year was one of significant growth and further profitability gains. In particular, the technology group substantially increased order intake, with all divisions contributing here. GEA also made progress in all Mission 30 strategic growth areas. In addition, GEA met key interim targets under its climate plan ahead of schedule. Major milestones in fiscal year 2025 were admission to the DAX index, the award of one of the largest contracts in the company’s history, and streamlining of the corporate structure.