17
Model 351/352/353 Liquid Level Systems
Section 4
Section 5—Parts List
General
The component parts of the actuated instrument are listed and identified in
the technical manual for that instru ment. Component parts are called out in
figures and listed by sensor type in the corresponding tables.
Sensor Type
Table
Reference
Model 351 Sensor, 500 psi (3.5 MPa)
5.1
Model 351 Sensor, 3000 psi (20.7 MPa)
5.2
Model S048 Sensor
5.3
Model 353 Sensor
5.4
Fill -Valve Assembly
5.5
IMPORTANT: O-rings should be examined anytime the seal is opened. They should be
replaced whenever:surfaces are damaged or deteriorated, “squeeze” is
less than 0.010 in. (0.25 mm), or sealing areas have flat surfaces.