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Marine Cast Iron Sight Glass CB/T422-93 Type J/JS

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China Marine Cast Iron Sight Glass CB/T422-93 Type J/JS:

Marine Sight Glass also can be called as marine liquid observer.

Design Standard: CB/T422-93, CBM1124-82

Test Standard: GB600

Flange size as per GB569, GB2501

Type Working Pressure (Mpa) Size (mm) Suitable Medium Max working Temperature (℃)
J 0.4 40~50 sea water,fresh water, oil(heavy oil is not included) 120
0.25 65~100
JS 0.4 20~50
0.25 65~200
T/TS 0.1 25~200 water, oil in the overflow pipe 70

Main Material:

Body-Cast Iron (HT200)

Transparent Plate-Common Glass or borosilicate glass

Cover-Carbon Steel (Q235A)

Main Size List(mm):

Type J:

Pressure Size Structure Dimension Thickness Flange Bolt Thickness Weight
Mpa DN H d1 δ D D1 D2 d0 b n Th δ kgs
0.4 40 160 40 8 125 93 74 15 16 6 M14 6 5.6
50 164 50 135 103 84 6.3
0.25 65 196 65 9 155 123 104 15 8 11.3
80 220 80 170 138 118 8 13.1
100 250 100 10 190 158 138 16.6

Type JS:

Pressure Size Structure Dimension Thickness Flange Bolt Thickness Weight
Mpa DN H d1 δ D D1 D2 d0 b n Th δ kgs
0.4 20 110 20 7 90 65 50 11 14 4 M10 6 0.95
25 140 25 100 75 60 1.43
32 140 32 120 90 70 14 16 M12 4.64
40 160 40 8 130 100 80 6.22
50 264 50 140 110 90 6.95
0.25 65 196 65 9 160 130 110 8 12.11
80 220 80 190 150 128 18 18 M16 14.14
100 250 100 10 210 170 148 18.41
125 280 125 240 200 178 20 8 10 25.3
150 310 150 11 265 225 202 29.34
200 370 200 320 280 258 22 12 31.25

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