| Feature:
|
Armored
Gage Glass
|
Magnetic
Gage
|
| Temperature:
|
Cryogenic
to 800 F(427 C)
|
Cryogenic
to 1000 F(538 C)
|
| Pressure:
|
Full
Vacuum to 10,000 PSI |
Full
Vacuum to 5,500PS |
| |
Full
Vacuum to 690 bar
|
Full
Vacuum to 379 bar
|
| Indication:
|
Direct
|
Indirect
Ref.
ASME Interpretation:
I-92-96,
Section I, PG-60.2
|
| Remote Indication/Switching:
|
Difficult
|
Easy
|
| Specific Gravity:
|
N/A
|
Must
Be Stable
|
| Purchase Cost: |
Generally
Lower |
Generally
Higher |
| Spare Parts
: |
Interchangeable |
Float for each application
|
| Visibility Range:
|
Sectional
gaps 1.5in.(38 mm)
|
Continuous
to approx. 16ft(4.9 m)
|
| Weight: |
Heavy
|
Light |
| Materials
: |
Carbon
and Stainless Steels
Special
alloys possible
May
be expensive
|
Must
be non-ferritic pipe
float
material per
application
Predictable
|
| Space Requirements
: |
Predictable
|
Allowance
for submerged float
must
be considered
|
| Maintenance:
|
Periodic
per application
Rebuild
required
|
Periodic
per application
Replace
float
|
| Maintenance Cost: |
Generally
Higher
|
Generally
Lower
|
| Visibility: |
Reflex
- Easy
Transparent-Harder,
Should use
illumination |
Easy |
