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Glass Products0 pages
2 7/8˝
(73 mm)
(27mm)
2 3/8˝
(60 mm)
4˝ GLASS
(102mm)
PRODUCTS
MAX LEVEL
EVEL
L
FLAT PLATE GLASS
6˝
m)
MIN LEVEL
7 1/8˝
3˝ CLASS
(181mm)
150 R.F.
FLANGE
1 13/16˝
STANDARD THICKNESSES 1/2˝
7
A
MATERIAL
1 1
(46mm)q q q q (191mm)
SODA LIME
q q q
q q q
BOROSILICATE
q q q q
q q q q q q
MAX LEVEL q q q
VYCOR
q q
The Papailias Company maintains a large inventory of annealed
and tempered circular glass discs of various diameters and
thicknesses cut from borosilicate and soda lime plate materials.
Discs can also be supplied in quartz or Vycor if needed.
Rectangles and special shapes to a customer's specification are
available. All flat glass shapes can be provided with drilled holes,
edge beveling and polishing, silk screening, and many other
enhancements to meet your requirements.
L
1 1/16˝
(27mm)
1/16
EVEL
COLD WORKING PRESSURES
COLD WORKINGflat circular annealed boroRecommended for PRESSURES
silicate discs at ambient annealed borosilicate discs
Recommended for flat circular temperature with ground at
ambientchamfered edges.
and temperature with ground and chamfered edges.
ASS
R.F.
-2PLS
200
150
40
30
QUARTZ
1-1/4
6˝
(152mm)
3/8
3/16
20
15
1
THICKNESS
INCHES
5/8
1/2
1/4
2
3
9 10
4 5
6
7 8
UNSUPPORTED DIAMETER, INCHES
11 12 13
For tempered borosilicate, multiply pressure by 3. For tempered
soda lime, multiply pressure by 4. For Vycor® reduce pressure
rating to approximately 75% of pressure computed.
3/8
1/2
5/8
3/4
1/4
AS REQUIRED
L
GLASS FOR ARMORED GAUGES
These glass lenses are designed for use in reflex or transparent style
armored liquid level gauges. The maximum recommended working
pressure indicated may exceed rating of armored liquid level gauge.
Consult gauge manufacturer for actual rating.
MAXIMUM RECOMMENDED WORKING PRESSURE
NONSTEAM
STEAM BOILER STEAM BOILER
SERVICE
LENGTH
NO MICA
MICA
-150°F (101°C)
PROTECTED TO 150°F (65°C)
TYPE
SIZE Inches
PSIG
PSIG
PSIG
41/2
400
1000
2500
PLAIN
1
Width 15/16˝ 2
51/2
400
1000
2500
(33 mm)
3
61/2
400
1000
2500
Thickness
4
71/2
400
1000
2500
11/16˝ (17 mm)
Flatness
5
8 5/8
400
1000
2500
0.005˝
6
9 7/8
400
1000
2500
(0.1 mm)
7
11
400
1000
2500
8
125/8
400
1000
2500
9
133/8
400
1000
2500
Length of indication (L) Plus 9.625˝
GLASS CYLINDERS
Submerged float length
Cylinders are cut from borosilicate heavy wall tubing. Cylinders
are available in lengths to 48˝. Cylinders can be supplied with
graduation marks to indicate volume, height, etc. Consult
factory for pressure rating.
STANDARD SIZES
(Inches)
DIAMETER
WALL THICKNESS
DIAMETER
WALL THICKNESS
11/2
5/32
31/2
3/16
13/4
5/32
4
1/4
2
3/16
41/2
1/4
21/4
3/16
5
1/4
21/2
3/16
1/2
1/4
3/4
3/16
6
1/4
3
3/16
1/2
1/4
1/4
3/16
7
3/8
5
6
1˝ (25mm)
Bottom o
tank
1
2
Width 15/16˝ 3
(33 mm)
4
Thickness
5
11/16˝ (17 mm)
Flatness
6
0.005˝
7
(0.1 mm)
8
9
41/4
51/2
61/2
71/2
8 5/8
9 7/8
11
125/8
133/8
400
1500
5000
400
400
400
400
400
400
400
400
1500
1500
1500
1500
1500
1500
1500
1500
5000
5000
5000
5000
5000
5000
5000
5000
REFLEX
Width 15/16˝
(33 mm)
Thickness
11/16˝ (17 mm)
Flatness
0.005˝
(0.1 mm)
41/4
51/2
61/2
71/2
8 5/8
9 7/8
11
125/8
133/8
400
2500
400
400
400
400
400
400
400
400
2500
2500
2500
2500
2500
2500
2500
2500
HIGH
PRESSURE
3
5/16
2 7/8˝
(73 mm)
3/4
1/8
1
2
1/4
MIN LEVEL
400
300
100
80
60
3/16
1
2
3
4
5
6
7
8
9
Come visit us online at www.papailias.com
MICA NOT
USED
WITH
REFLEX
GLASS
GLASS
MAXIMUM RECOMMENDED WORKING PRESSURES, PSIG
7 7/8˝
(200mm)
1/8
37
"
