Overview
150-504-100-03
6
August 1, 2002
HRE-504 List 1, List 1B, and List 2
Air-filled Stub Presentation
This unit has an air pressure cutoff valve, air stem Schrader valve, and pressure relief valve. In the HRE-504
enclosure, the air pressure cutoff valve is used to shut off the inlet air supply that is pumped from the main feeder
cable through the 30 foot (9.14 m) stub.
•
To shut off the inlet air supply, turn the air-cutoff valve clockwise 1 full turn.
•
To turn on the inlet air supply, turn the air-cutoff valve counterclockwise 1 full turn.
To avoid pressure buildup, the pressure relief valve is set to release air at a maximum pressure
of 15 PSI. Due to manufacturing tolerances of the springs, this maximum pressure has a
tolerance of ± 3 PSI. This pressure and tolerance are well within the safety concerns that may
apply to the housing, personnel, or cable.
The pressure relief valve is not intended for controlling the air pressure that is being applied to
the housing cable.
Summary of Contents for 150-2202-01
Page 4: ...Inspecting the Shipment 150 504 100 03 iv August 1 2002 HRE 504 List 1 List 1B and List 2...
Page 8: ...List of Tables 150 504 100 03 viii Augusr 1 2002 HRE 504 List 1 List 1B and List 2...
Page 53: ...Appendix D Abbreviations 150 504 100 03 46 August 1 2002 HRE 504 List 1 List 1B and List 2...
