 |
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Flange
Threaded Blast Gate Observation Port |
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| Blast Gates mount to a mating
flange on 3" or 4" pipe, while the viewing
components are housed in a NPT threaded body half. The
standard stainless steel slide arrangement in the blast gate
gives added protection and life to the lens during operation,
and allows maintenance to be performed with added safety
during vessel down-time.
Additional cooling can be obtained by
adding a purge connection on the glass or vessel side of the
blast gate housing. Three choices of glass are available for
varying temperature exposures and viewing requirements.
Fabrication in alternative materials is available upon
request. |
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Flanged Threaded Blast Gate Observation Port |
|
 |
Pipe
Size |
Viewing
Area |
A |
B |
C |
D |
E |
F |
Size
of
Bolts |
Flange
Bolt
Circle |
PSI Rating |
| 3" |
2-1/4"
Dia. |
11" |
4-5/8" |
5-3/8" |
7-1/2" |
2-7/16" |
8-916" |
5/8" |
4
on 6" |
5 |
| 4" |
3-3/8"
Dia. |
13-3/4" |
5-5/8" |
5-3/8" |
9" |
2-7/8" |
10-7/8" |
5/8" |
8
on 7-1/2" |
5 |
|
| |
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| Glass Options |
| |
Code Number |
Thickness |
Max. Int. Temp. |
Max. Con. Temp. |
| Pyrex Clear (Borosilicate) Glass |
P |
1/4" |
554°F |
446°F |
| Cobalt Blue Glass |
CB |
3/16" |
554°F |
446°F |
| Quartz Clear Glass |
Q |
1/4" |
2048°F |
1600°F |
| Temperature ratings apply only for the operating conditions of the glass. Ratings for housings vary on type of steel. |
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