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Series NW-BW; Weld Neck Style Circular Sight Glasses

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This series of weld neck style sight glasses are designed for welding to a stub end pipe or may be suppied with a radius to saddle the pipe. Each is rated for 150 PSIG (10.3 Barg) at 300 ºF (149 ºC) with a tempered soda lime lens and 500 ºF (260 ºC) with a borosilicate lens. Sight glasses are constructed using code materials. Optional accessories include Series PL, MSL, SLEX, REX, FBX illuminators, and Type I wipers.




 DOWNLOADS 

Data Sheet
(PDF, 680KB)

IOM Manual
(PDF, 323KB)

1" NW-BW
(PDF, 121KB)

1.5" NW-BW
(PDF, 122KB)

2" NW-BW
(PDF, 121KB)

3" NW-BW
(PDF, 113KB)

4" NW-BW
(PDF, 115KB)

5" NW-BW
(PDF, 116KB)

6" NW-BW
(PDF, 118KB)

8" NW-BW
(PDF, 117KB)

Guide to Corrosion Resistance
(PDF, 114KB)

   
  Results 1 - 8 of 8 1 

Item #

Dimension A

Dimension B

Dimension C

Connection Type

Rated Pressure at 300 ºF (149 ºC) Temperature

1"NW-BW 1 1/16 in
25
mm
4 1/4 in
108
mm
3 3/16 in
83
mm
Buttweld 150 psig
10.3
Barg
1.5""NW-BW 1 15/16 in
41
mm
5 in
127
mm
3 3/4 in
95
mm
Buttweld 150 psig
10.3
Barg
2"NW-BW 2 7/16 in
51
mm
6 in
152
mm
3 7/8 in
102
mm
Buttweld 150 psig
10.3
Barg
3"NW-BW 3 9/16 in
90
mm
7 1/2 in
191
mm
4 3/8 in
111
mm
Buttweld 150 psig
10.3
Barg
4"NW-BW 4 9/16 in
116
mm
9 in
229
mm
4 7/8 in
124
mm
Buttweld 150 psig
10.3
Barg
5"NW-BW 5 1/16 in
129
mm
10 in
254
mm
5 5/16 in
135
mm
Buttweld 150 psig
10.3
Barg
6" NW-BW 6 11/16 in
170
mm
11 in
279
mm
5 3/8 in
137
mm
Buttweld 150 psig
10.3
Barg
8"NW-BW 8-11/16 in
221
mm
13 1/2 in
343
mm
6 1/4 in
159
mm
Buttweld 150 psig
10.3
Barg
  Results 1 - 8 of 8 1