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Double Window Sight Glasses

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The double window assembly offers the user an extra layer of reliability by controlling the factors which cause a lens to fail.

If a lens fails, the cause can, in most instances, be traced to one or a combination of the following factors: a stress concentration, thermal stress or shock, erosion or corrosion, and mechanical damage. The double window design provides extra protection against these causes of failure. All sizes except NW150-DW and NW200-DW are rated standard for 150 PSIG (10.3 Barg) pressure and full vacuum at 300 ºF (149 ºC) temperature. NW150- DW and NW200-DW are rated for 125 PSIG (8.6 Barg) pressure at 300 ºF (149 ºC) temperature. Higher pressure and temperature ratings are available upon request.




   
  Results 1 - 6 of 6 1 

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Size

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Dimension B

Dimension C

Dimension D

NW100-DW 100 mm 6 3/8 in
162
mm
5 in
127
mm
1 15/16 in
49
mm
7/16 in
11
mm
NW125-DW 125 mm 7 3/8 in
187
mm
6 in
152
mm
1 15/16 in
49
mm
7/16 in
11
mm
NW150-DW 150 mm 8 3/8 in
213
mm
6 7/8 in
175
mm
2 in
51
mm
1/2 in
13
mm
NW200-DW 200 mm 10 7/16 in
265
mm
8 13/16 in
224
mm
2 3/8 in
60
mm
1/2 in
13
mm
NW50-DW 50 mm 4 3/8 in
111
mm
3 1/4 in
83
mm
1 7/8 in
48
mm
3/8 in
10
mm
NW80-DW 80 mm 5 1/16 in
129
mm
4 in
102
mm
1 7/8 in
48
mm
3/8 in
10
mm
  Results 1 - 6 of 6 1