Cameron Barton 752 - DPU Level with Tank Bottom: Cool Liquids with Pressurized Tank

A-9
Model 752 and 752A Differential Pressure Transmitters Appendix A
DPU Level with Tank Bottom: Cool Liquids with Pressurized Tank
1. Open the block valves and shutoff valves.
2. Crack open the DPU low-pressure drain valve and close it when liquid
stops owing from it.
3. Crack open the DPU high-pressure vent valve and close it when bubble-
free liquid ows from it.
DRAIN
VALVE
BLOCK
VALVE
HIGH-PRESSURE
DPU
BLOCK
VALVE
SHUT-OFF
VALVE
VENT
VALVE
SHUT-OFF
VALVE
Figure A.8—Cool Non-Condensing Liquid, DPU Level with Tank Bottom