DIFFERENTIAL PRESSURE TRANSDUCER ASSEMBLY WITH OVERLOAD PROTECTION

摘要

A pressure overload protector for a sensor includes a pressure-filled channel system fillable with fluid or gas, a first overload stop seated in an open position, a first diaphragm at the unseated end of the first overload stop, a second overload stop seated in an open position, a second diaphragm at the unseated end of the second overload stop, a sensor connected to a fluid channel, and a third and fourth overload stop connected by channels to the fluid channel of the sensor and terminating at a fluid exit. The overload protector provides bidirectional over and under pressure protection to the sensor.

主权项

1. A pressure overload protector, comprising:
a body; a first overload valve on a first pressure port; a second overload valve on a second pressure port; a first diaphragm, wherein the first overload valve and the second overload valve are disposed on opposite sides of the first diaphragm; a third overload valve disposed inside the pressure overload protector; a fourth overload valve disposed inside the pressure overload protector; a second diaphragm, wherein the third overload valve and the fourth overload valve are disposed on opposite sides of the second diaphragm.