All Categories > Sight Glasses > Circular Sight Glasses > Series NW-BW; Weld Neck Style Circular Sight Glasses > Item # 8"NW-BW  
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Item # 8"NW-BW, NW-BW Series Circular Sight Glasses



8" ANSI B16.5 weld neck style sight glasses are designed for welding to a stub end pipe or may be supplied with a cut radius on the weld neck to straddle the side of a pipe. Each is rated for 150PSIG (10.3 Barg) at 300ºF (149ºC) with a tempered soda lime lens and 500ºF (260ºC) with a borosilicate lens. Sight glass flanges are constructed using code materials. Optional accessories include Series PL, MSL, SLEX, REX, FBX illuminators, and Type I wipers.







Specifications

Dimension A

8-11/16 in
221
mm

Dimension B

13 1/2 in
343
mm

Dimension C1

6 1/4 in
159
mm

Approximate Weight

75 lb
34
kg

Connection Type

Buttweld

Rated Pressure at 300 ºF (149 ºC) Temperature

150 psig
10.3
Barg

Rated Pressure at 500 ºF (260 ºC) Temperature

150 psig
10.3
Barg

Lens Material

Tempered Soda Lime
Borosilicate Glass

Shape

Circular

Accessories

Series PL, MSL, SLEX, REX, FBX Illuminators
Type I Wiper
1 Dimension C contains the thickness of a standard heavy hexagon nut.


 DOWNLOADS 

Data Sheet
(PDF, 680KB)

IOM Manual
(PDF, 323KB)

8" NW-BW
(PDF, 117KB)