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QUICK OPENING SIGHTGLASSES Series LQSG and QSG0 pages
2 7/8˝
(73 mm)
4˝
(102mm)
QUICK OPENING SIGHTGLASSES4˝
(102mm)
Series LQSG and QSG
MAX LEVEL
SERIES LQSG AND QSG
The special features of this Papailias
sightglass, Series QSG, and light/ sightglass
combination, Series LQSG, are the quick
release handle mechanism and hinge
assembly. When the handle is released, the
sightglass may be pivoted
off the lower flange, offering unobstructed
easy access to the interior of a vessel for
sampling, cleaning or maintenance work.
Series QSG and LQSG Sightglasses are
ideally suited wherever samples must be
taken during a process which is being
carried out at low pressure or under vacuum
conditions.
3 9/16
(90mm
2 1/16˝
(52mm)
L
L
1 1/16˝
(27mm)
D
D
C
C
MIN LEVEL
SPECIFICATIONS
Series LQSG Quick Opening Light/Sightglass
7 7/8˝
(200mm)
q Weld pad flange constructed of carbon
steel and stainless steel are standard.
Virtually any machinable alloy can be
specified to meet user requirements.
q Lower sightglass flange constructed
from aluminum casting.
MAX LE
Size
A
Inches
1˝ MNPT
LQSG-150
5
2PLS 8
LQSG-225
B
MM
3/8
136
203
Inches
254
1/4
13
7 7/8˝
D
(200mm)
APPROX.
WEIGHT
C
MM
10
MIN LE
A
A
B
B
337
Inches
MM
1
25
1
25
Inches
MM
LBS KGS
1/2
165
40
18
1/4
235
58
26
6
9
q Sightglasses are rated standard for
7 PSIG (0.5 Barg) pressure at
300°F (149°C) temperature.
1˝ CLA
150 R.
FLANGE-
6˝
(152mm)
Standard sightglass lens
6˝q seals are tempered soda and o-ring
lime and
neoprene respectively. Other lens and
152mm)materials are available.
seal
q High
1˝ FNPT intensity 120V/100W halogen lamp
2PLS
provides bright illumination.
q Built-in momentary on/off switch for
energy savings and increased lamp life.
gth of indication (supplied by customer)
plied by customer
C L
D S
C
C
D
D
A
A
B
B
Series QSG Quick Opening Sightglass
Size
A
Inches
QSG-150
QSG-225
6
B
MM
Inches
C
MM
Inches
3/8
136
10
254
1
8
203
131/4
337
1
5
Approx.
Weight
D
MM
Inches
MM
LBS KGS
25
1/2
3
89
42
19
25
33/4
95
60
27
245 Pegasus Ave., Northvale, NJ 07647 s Tel: 201.767.4027 s Fax: 201.767.7870
"
