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

A-10
Appendix A Model 752 and 752A Differential Pressure Transmitters
DPU Below 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 drain valve and close it when bubble-
free liquid ows from it.
HIGH-PRESSURE
SHUT-OFF
VALVE
BLOCK
VALVE
DRAIN
VALVE
DPU
SHUT-OFF
VALVE
BLOCK
VALVE
Figure A.9—Cool Non-Condensing Liquid, DPU Below Tank