MURPHY墨菲PT167EX是一种压力开关仪表，连接到螺纹压力隔膜壳。开关仪表封装在防爆箱中，CSA等级为I级，1类，C和D组。The Murphy PT167EX is a pressure Swichgage instrument connected to a threaded pressure diaphragm housing. The Swichgage instrument is enclosed in an explosion-proof case and is CSA rated for Class I, Division 1, Groups C and D.
开关仪表是一种带有可调低压和高压限位开关的压力指示仪表。当仪表指针接触到低限位或高限位开关时，电路完成，可操作警报和/或关闭设备。A Swichgage instrument is a pressure-indicating gage with adjustable low and high pressure limit switches. When the gage pointer touches the low or high limit switches, an electrical circuit is completed which can operate alarms and/or shut down equipment.
2 NPT密封隔膜壳直接连接至开关量连接。隔膜壳中充满硅油，因此隔膜上的压力使开关仪表响应。外壳将开关量感测元件与被测介质密封。The 2 NPT, sealed diaphragm housing is attached directly to the Swichgage connection. The diaphragm housing is filled with a silicone fluid so that pressure against the diaphragm causes the Swichgage instrument to respond. The housing seals the Swichgage sensing element from the medium being measured.
应用领域包括高粘度液体，如原油在铅线上的应用。其他应用包括沥青、污泥、研磨材料等。Applications include highly viscous liquids such as crude oil on lead line applications. Other applications have included asphalt, sludge, abrasive materials, etc.
Case : Explosion-proof, sand cast aluminum. Lens is removable. CSA Listed for Class I, Division 1, Groups C and D.
Contact Rating : 1 A, 125 VAC
Dial : 4-1/2 in. (114 mm) white on black, dual scaled psi/kPa. Other dial configurations available. Consult factory.