The Murphy 20P-HL-200 is a 2-inch (51 mm dial) Swichgage pressure transformer with high/low contact function and a pressure range of 0 - 200 Psi (14 bar).
It is diaphragm-driven and has a built-in electrical switch to trigger alarms or shutdown devices. The "HL" model features high and low adjustable contacts with convenient knob adjustment.
The meter mechanism is enclosed in a coated, corrosion-resistant steel casing. The polycarbonate break-resistant lens and polished stainless steel bezel provide protection, and the unique unitized diaphragm chamber ensures accuracy and overpressure protection.
The built-in pulse damper eliminates pointer flutter and is removable for cleaning. This instrument is widely used in oil fields, marine and other fields for monitoring various pressures such as engine lubricating oil pressure.