压力开关主要类别包括常开式和常闭式。主要特点是:

1、采用英制管螺纹快速接头或铜管焊接式安装结构，安装灵活，使用方便，无需特殊的安装固定。

2、插片式导线式连接方可供用户任意选定。

3、密封式不锈钢感应器安全可靠。

4、压力范围内可根据用户任意选定的压力值进行制造。

压力开关是与电器开关相结合的装置，当到达预先设定的流体压力时，开关接点动作。主要应用于电厂、石化、冶金行业等工业设备上输出报警或控制信号，在工业领域中有着重要的用途，能预防生产工程中重要装置的损坏，避免了重大生产事故地发生。

2.压力开关主要敏感元件2.1波纹管

特点:耐久性及耐振性较波登管好，接断差可调范围大，主要材质有不锈钢、磷青铜等，价格相对较高，但可测压力范围较小，最大为40MPa(CB33)2.2膜片

1059 eaton-vickers威格士压力继电器 ST307-V2-350-B  

1060 eaton-vickers威格士压力开关 SG307-F-V2-150  
1061 eaton-vickers威格士压力开关 SG307-F-V2-350  

1062 eaton-vickers威格士压力开关 SG307-F-V2-AS-H2350

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987 eaton-vickers威格士溢流阀 DG5S4-042A-T--MUH5-61  
988 eaton-vickers威格士溢流阀 DG5S4-042BL-T-MUH5-60  
1002 eaton-vickers威格士溢流阀 DG5V-6FW-D-MUHL5-20  
1003 eaton-vickers威格士溢流阀 DG5V-7-2C-T-MUH5-40  
1004 eaton-vickers威格士溢流阀 DG5V-7-6C-2-T-UMUH5-40  
1005 eaton-vickers威格士溢流阀 DG5V-7-6C-2-T-VMUH5-40  
1006 eaton-vickers威格士溢流阀 DG5V-7-E6B-E-T-MUH5-40  
1007 eaton-vickers威格士溢流阀 DG5V-8FW-D-MUHL5-20  
1008 eaton-vickers威格士溢流阀 DG5V-8S-0A-MUH10  
1009 eaton-vickers威格士溢流阀 DG5V-8S-2C-MUH10  
1010 eaton-vickers威格士溢流阀 DG5V-8S-2C-T-MUH10  
1011 eaton-vickers威格士溢流阀 DG5V-8S-31C-T-MUH10  
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1013 eaton-vickers威格士溢流阀 DG5V-8S-6AL-E-MUH10  
1027 eaton-vickers威格士溢流阀 DGMFN-5-Y-A2W-B2W-30  
1028 eaton-vickers威格士溢流阀 DGMPC-3-ABK-41  
1029 eaton-vickers威格士溢流阀 DGMPC-3-ABK-BAK-41  
1030 eaton-vickers威格士溢流阀 DGMPC-5-ABK-30  
1031 eaton-vickers威格士溢流阀 DGMPC-5-ABK-BAK-30  
1032 eaton-vickers威格士溢流阀 DGMPC-5-ABM-30  
1033 eaton-vickers威格士溢流阀 DGMPC-5-ABM-BAM-30  
1035 eaton-vickers威格士溢流阀 DGMPC-5-DABM-DBAM-30  
1036 eaton-vickers威格士溢流阀 DGMPFN-5-X-B2W-30  
1037 eaton-vickers威格士溢流阀 DGMX2-3-PA-CW-B-40
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