Sapphire Windows manufacturer
Precision Sapphire Technologies, Ltd.

Didzioji str. 40/2-10, LT-01128 Vilnius, Lithuania
Tel./Fax +370 5 212 26 91
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Specialty Windows - High Pressure, Vacuum & Sight Glass Windows

high pressure sight window
high pressure flow level indicator

PST can supply standard and custom designed sight windows, high pressure windows and vacuum windows. Proprietary methods are used to seal and fuse glass, sapphire, fused silica and other exotic window materials to threaded and flanged metal and ceramic housings.

Pressure Ratings:

Housing Materials:

Sight Window Materials:


2000psi pressure sight glass window
high pressure flow indicator

Applications for our Glass and Sapphire Windows:


Low Pressure Sight Windows
NPT/
BSPT
B C D E
2" 2.500 1.875 0.760 0.290
1-1/2" 2.000 1.510 0.715 0.270
1-1/4" 1.625 1.300 0.670 0.254
1" 1.313 0.980 0.670 0.238
3/4" 1.100 0.760 0.549 0.222
1/2" 0.880 0.610 0.525 0.206
3/8" 0.690 0.460 0.396 0.190
1/4" 0.560 0.350 0.396 0.175
High Pressure Sight Windows
NPT/
BSPT
B C D E
2" 2.500 1.375 0.760 0.360
1-1/2" 2.000 1.060 0.715 0.337
1-1/4" 1.625 0.896 0.670 0.318
1" 1.315 0.731 0.670 0.298
3/4" 1.100 0.510 0.549 0.278
1/2" 0.880 0.415 0.525 0.258
3/8" 0.690 0.385 0.396 0.239
1/4" 0.560 0.300 0.396 0.219

NPT and BSPT standard
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