ASME / ANSI B16.5 Flanged Sight Glass Windows- ASME (also know as ANSI) – Industrial, flanged sight glasses
- Exhibits no outgassing or contamination of most systems*
- Long working life
- No maintenance required
- Tested to high safety factor to insure safety & reliability
- Exceeds all industry and MIL standards
- Engineered, Manufactured and tested at the Rayotek U.S. facility
ASME (ANSI) flanged sight glass windows are engineered to endure harsh environments where extreme chemical, thermal, pressure and mechanical conditions are the norm. These flanged sight glasses are workhorses of the industrial world and Rayotek ASME flanged sight windows meet the challenge. The window is fused or bonded to a metal housing creating a hermetically sealed single-piece sight glass unit.
Our ASME flanged sight windows are designed for all B16.5 classes: 150, 300, 400, 600, 900, 1500 and 2500 psi. Custom higher pressures are available, please see Custom and exotic Sight Window page.
(All ASME's by Size)
2" ASME
| Nominal Size (in) | Pressure Rating* (Class) | Window Material | Flange Material | Operating Temp Range | Part Number | Additional Info |
| 2 | ASME 150 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101167 | Contact Us |
| 2 | ASME 150 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101223 | Contact Us |
| 2 | ASME 150 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101295 | Contact Us |
| 2 | ASME 150 | Fused Quartz | 316 Stainless | -40 to 1832°F | 101311 | Contact Us |
| 2 | ASME 300 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101175 | Contact Us |
| 2 | ASME 400 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101183 | Contact Us |
| 2 | ASME 600 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101191 | Contact Us |
| 2 | ASME 900 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101199 | Contact Us |
| 2 | ASME 1500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101207 | Contact Us |
| 2 | ASME 1500 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101231 | Contact Us |
| 2 | ASME 1500 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101303 | Contact Us |
| 2 | ASME 2500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101215 | Contact Us |
3" ASME
| Nominal Size (in) | Pressure Rating* (Class) | Window Material | Flange Material | Operating Temp Range | Part Number | Additional Info |
| 3 | ASME 150 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101168 | Contact Us |
| 3 | ASME 150 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101224 | Contact Us |
| 3 | ASME 150 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101296 | Contact Us |
| 3 | ASME 150 | Fused Quartz | 316 Stainless | -40 to 1832°F | 101312 | Contact Us |
| 3 | ASME 300 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101176 | Contact Us |
| 3 | ASME 400 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101184 | Contact Us |
| 3 | ASME 600 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101192 | Contact Us |
| 3 | ASME 900 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101200 | Contact Us |
| 3 | ASME 1500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101208 | Contact Us |
| 3 | ASME 1500 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101232 | Contact Us |
| 3 | ASME 1500 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101304 | Contact Us |
| 3 | ASME 2500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101216 | Contact Us |
4" ASME
| Nominal Size (in) | Pressure Rating* (Class) | Window Material | Flange Material | Operating Temp Range | Part Number | Additional Info |
| 4 | ASME 150 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101169 | Contact Us |
| 4 | ASME 150 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101225 | Contact Us |
| 4 | ASME 150 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101297 | Contact Us |
| 4 | ASME 150 | Fused Quartz | 316 Stainless | -40 to 1832°F | 101313 | Contact Us |
| 4 | ASME 300 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101177 | Contact Us |
| 4 | ASME 400 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101185 | Contact Us |
| 4 | ASME 600 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101193 | Contact Us |
| 4 | ASME 900 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101201 | Contact Us |
| 4 | ASME 1500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101209 | Contact Us |
| 4 | ASME 1500 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101233 | Contact Us |
| 4 | ASME 1500 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101305 | Contact Us |
| 4 | ASME 2500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101217 | Contact Us |
5" ASME
| Nominal Size (in) | Pressure Rating* (Class) | Window Material | Flange Material | Operating Temp Range | Part Number | Additional Info |
| 5 | ASME 150 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101170 | Contact Us |
| 5 | ASME 150 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101226 | Contact Us |
| 5 | ASME 150 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101298 | Contact Us |
| 5 | ASME 150 | Fused Quartz | 316 Stainless | -40 to 1832°F | 101314 | Contact Us |
| 5 | ASME 300 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101178 | Contact Us |
| 5 | ASME 400 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101186 | Contact Us |
| 5 | ASME 600 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101194 | Contact Us |
| 5 | ASME 900 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101202 | Contact Us |
| 5 | ASME 1500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101210 | Contact Us |
| 5 | ASME 1500 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101234 | Contact Us |
| 5 | ASME 1500 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101306 | Contact Us |
| 5 | ASME 2500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101218 | Contact Us |
6" ASME
| Nominal Size (in) | Pressure Rating* (Class) | Window Material | Flange Material | Operating Temp Range | Part Number | Additional Info |
| 6 | ASME 150 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101171 | Contact Us |
| 6 | ASME 150 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101227 | Contact Us |
| 6 | ASME 150 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101299 | Contact Us |
| 6 | ASME 150 | Fused Quartz | 316 Stainless | -40 to 1832°F | 101315 | Contact Us |
| 6 | ASME 300 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101179 | Contact Us |
| 6 | ASME 400 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101187 | Contact Us |
| 6 | ASME 600 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101195 | Contact Us |
| 6 | ASME 900 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101203 | Contact Us |
| 6 | ASME 1500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101211 | Contact Us |
| 6 | ASME 1500 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101235 | Contact Us |
| 6 | ASME 1500 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101307 | Contact Us |
| 6 | ASME 2500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101219 | Contact Us |
8" ASME
| Nominal Size (in) | Pressure Rating* (Class) | Window Material | Flange Material | Operating Temp Range | Part Number | Additional Info |
| 8 | ASME 150 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101172 | Contact Us |
| 8 | ASME 150 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101228 | Contact Us |
| 8 | ASME 150 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101300 | Contact Us |
| 8 | ASME 150 | Fused Quartz | 316 Stainless | -40 to 1832°F | 101316 | Contact Us |
| 8 | ASME 300 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101180 | Contact Us |
| 8 | ASME 400 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101188 | Contact Us |
| 8 | ASME 600 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101196 | Contact Us |
| 8 | ASME 900 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101204 | Contact Us |
| 8 | ASME 1500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101212 | Contact Us |
| 8 | ASME 1500 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101236 | Contact Us |
| 8 | ASME 1500 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101308 | Contact Us |
| 8 | ASME 2500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101220 | Contact Us |
10" ASME
| Nominal Size (in) | Pressure Rating* (Class) | Window Material | Flange Material | Operating Temp Range | Part Number | Additional Info |
| 10 | ASME 150 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101173 | Contact Us |
| 10 | ASME 150 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101229 | Contact Us |
| 10 | ASME 150 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101301 | Contact Us |
| 10 | ASME 150 | Fused Quartz | 316 Stainless | -40 to 1832°F | 101317 | Contact Us |
| 10 | ASME 300 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101181 | Contact Us |
| 10 | ASME 400 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101189 | Contact Us |
| 10 | ASME 600 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101197 | Contact Us |
| 10 | ASME 900 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101205 | Contact Us |
| 10 | ASME 1500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101213 | Contact Us |
| 10 | ASME 1500 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101237 | Contact Us |
| 10 | ASME 1500 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101309 | Contact Us |
| 10 | ASME 2500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101221 | Contact Us |
12" ASME
| Nominal Size (in) | Pressure Rating* (Class) | Window Material | Flange Material | Operating Temp Range | Part Number | Additional Info |
| 12 | ASME 150 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101174 | Contact Us |
| 12 | ASME 150 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101230 | Contact Us |
| 12 | ASME 150 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101302 | Contact Us |
| 12 | ASME 150 | Fused Quartz | 316 Stainless | -40 to 1832°F | 101318 | Contact Us |
| 12 | ASME 300 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101182 | Contact Us |
| 12 | ASME 400 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101190 | Contact Us |
| 12 | ASME 600 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101198 | Contact Us |
| 12 | ASME 900 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101206 | Contact Us |
| 12 | ASME 1500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101214 | Contact Us |
| 12 | ASME 1500 | Sapphire (Bonded) | 316 Stainless | -40 to 392°F | 101238 | Contact Us |
| 12 | ASME 1500 | Boro (Bonded) | 316 Stainless | -40 to 392°F | 101310 | Contact Us |
| 12 | ASME 2500 | SodaLime (Fused) | 316 Stainless | -40 to 572°F | 101222 | Contact Us |
Rayotek Sight Windows
8845 Rehco Road
San Diego CA 92121
Tel: 858-558-3671
Fax: 858-558-6213
sales@rayotek.com
Rayotek Sight Windows is a division of
Rayotek Scientific, Inc
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