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Series PL/NW0 pages
2 7/8˝
(73 mm)
4˝
4˝
LIGHT/SIGHTGLASS COMBINATION
(102mm)
(102mm)
Series
MAX LEVEL PL/NW
MAX LE
Observing the contents in a processing vessel normally requires the use of two sightglasses: one for lighting, the other for viewing. The Series PL/NW eliminates
the expense of an additional port and the expense to install it. The UL-1571 Listed
Series PL lighting unit and the corresponding Series NW sightglass provide
glare-free illumination precisely where you want it–at the viewing port.
3 9/16
(90mm
2 1/16˝
(52mm)
L
L
3
3
1 1/16˝
(27mm)
MIN LEVEL
MIN LE
9
9
7 7/8˝
(200mm)
7 7/8˝
(200mm)
1˝ MNPT
2PLS
VIEWING DIAMETERS 3 1/4˝ & 31/4˝ & 4˝
Viewing Diameters 4˝
VIEWING DIAMETERS 3 1/4˝ & 4˝
VIEWING DIAMETERS 5˝, 6˝, 7˝ & 9˝5˝, 6˝, 7˝, & 9˝
Viewing Diameters
VIEWING DIAMETERS 5˝, 6˝, 7˝ & 9˝
2
PARTS & AVAILABLE MATERIALS
2
1
1
The diagram refers to:
4
4
6˝
152mm)
1˝ FNPT
ITEM
1
2
3
4
5
5
5
D
D
6
6
2PLS
7
7
8
C
A
B
MOMENTARY SWITCH
MOMENTARY SWITCH
MATERIAL
Aluminum
Aluminum
6˝
(152mm)
Alloy steel
Type 304 stainless steel;
Other alloys available
Tempered soda lime;
tempered borosilicate
and quartz available
Neoprene
Carbon steel, Type 304,
304L, 316, 316L stainless
steel; other alloys available
Lens
6
8
A
B
C
PART DESCRIPTION
PL light housing
Housing cover
Cable gland
Stud and nut
Upper flange
1˝ CLA
150 R.
FLANGE-
gth of indication (supplied by customer)
plied by customer
7
8
Gasket
Lower flange
9
Switch with separate
watertight boot
120 V
120 V
LAMP
LAMP
C L
D S
WIRING DIAGRAM
WIRING DIAGRAM
NOMINAL
VIEWING
DIAMETER
31/4
4
Size
APPROX. WEIGHT
D
C
B
A
VOLTAGE WATTS
Inches
PL80/NW50
PL100/NW80
24
115
20
100
MM
Inches
MM
Inches
MM
Inches
MM
LBS
KGS
31/4
83
7
178
13/16
30
41/4
108
20
9
191
3/16
30
6
1/8
156
21
10
1/8
4
102
1/2
7
1
3/16
5
PL125/NW100
115
100
5
127
9
229
1
30
6
156
28
13
6
PL150/NW125
115
100
6
152
10
254
17/16
37
6 3/8
162
36
16
7/8
7/16
3/8
162
41
19
168
59
27
7
22
PL175/NW150
115
100
9
PL225/NW200
115
100
6
813/16
175
11
279
1
37
6
224
131/2
343
17/16
37
6 5/8
245 Pegasus Ave., Northvale, NJ 07647 s Tel: 201.767.4027 s Fax: 201.767.7870
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