
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 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101239 |
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 300 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101247 |
Contact Us |
2 |
ASME 400 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101183 |
Contact Us |
2 |
ASME 400 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101255 |
Contact Us |
2 |
ASME 600 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101191 |
Contact Us |
2 |
ASME 600 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101263 |
Contact Us |
2 |
ASME 900 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101199 |
Contact Us |
2 |
ASME 900 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101271 |
Contact Us |
2 |
ASME 1500 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101207 |
Contact Us |
2 |
ASME 1500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101279 |
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 |
2 |
ASME 2500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101287 |
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 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101240 |
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 300 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101248 |
Contact Us |
3 |
ASME 400 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101184 |
Contact Us |
3 |
ASME 400 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101256 |
Contact Us |
3 |
ASME 600 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101192 |
Contact Us |
3 |
ASME 600 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101264 |
Contact Us |
3 |
ASME 900 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101200 |
Contact Us |
3 |
ASME 900 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101272 |
Contact Us |
3 |
ASME 1500 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101208 |
Contact Us |
3 |
ASME 1500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101280 |
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 |
3 |
ASME 2500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101288 |
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 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101241强制上岸p图强制上岸p图,热鸟论坛挂了热鸟论坛挂了,三色绘恋剧情三色绘恋剧情 |
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 300 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101249 |
Contact Us |
4 |
ASME 400 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101185 |
Contact Us |
4 |
ASME 400 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101257 |
Contact Us |
4 |
ASME 600 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101193 |
Contact Us |
4 |
ASME 600 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101265 |
Contact Us |
4 |
ASME 900 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101201 |
Contact Us |
4 |
ASME 900 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101273 |
Contact Us |
4 |
ASME 1500 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101209 |
Contact Us |
4 |
ASME 1500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101281 |
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 |
4 |
ASME 2500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101289 |
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 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101242 |
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 300 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101250 |
Contact Us |
5 |
ASME 400 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101186 |
Contact Us |
5 |
ASME 400 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101258 |
Contact Us |
5 |
ASME 600 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101194 |
Contact Us |
5 |
ASME 600 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101266 |
Contact Us |
5 |
ASME 900 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101202 |
Contact Us |
5 |
ASME 900 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101274 |
Contact Us |
5 |
ASME 1500 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101210 |
Contact Us |
5 |
ASME 1500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101282 |
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 |
5 |
强制上岸p图强制上岸p图,热鸟论坛挂了热鸟论坛挂了,三色绘恋剧情三色绘恋剧情ASME 2500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101290 |
Contact Us |
6" ASME
Nominal Size (in) |
Pressure Rating* (Class) |
Window Material |
Flange Material |
Operating Temp Range |
Part Number |
Additional Info强制上岸p图强制上岸p图,热鸟论坛挂了热鸟论坛挂了,三色绘恋剧情三色绘恋剧情 |
6 |
ASME 150 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101171 |
Contact Us |
6 |
ASME 150 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101243 |
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 300 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101251 |
Contact Us |
6 |
ASME 400 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101187 |
Contact Us |
6 |
ASME 400 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101259 |
Contact Us |
6 |
ASME 600 |
SodaLime (Fused) |
强制上岸p图强制上岸p图,热鸟论坛挂了热鸟论坛挂了,三色绘恋剧情三色绘恋剧情316 Stainless |
-40 to 572°F |
101195 |
Contact Us |
6 |
ASME 600 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101267 |
Contact Us |
6 |
ASME 900 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101203 |
Contact Us |
6 |
ASME 900 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101275 |
Contact Us |
6 |
ASME 1500 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101211 |
Contact Us |
6 |
ASME 1500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101283 |
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 |
6 |
ASME 2500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101291 |
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 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101244 |
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 300 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101252 |
Contact Us |
8 |
ASME 400 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101188 |
Contact Us |
8 |
ASME 400 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101260 |
Contact Us |
8 |
ASME 600 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101196 |
Contact Us |
8 |
ASME 600 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101268 |
Contact Us |
8 |
ASME 900 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101204 |
Contact Us |
8 |
ASME 900 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101276 |
Contact Us |
8 |
ASME 1500 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101212 |
Contact Us |
8 |
ASME 1500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101284 |
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 |
8 |
ASME 2500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101292 |
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 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101245 |
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 300 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101253 |
Contact Us |
10 |
ASME 400 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101189 |
Contact Us |
10 |
ASME 400 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101261 |
Contact Us |
10 |
ASME 600 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101197 |
Contact Us |
10 |
ASME 600 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101269 |
Contact Us |
10 |
ASME 900 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101205 |
Contact Us |
10 |
ASME 900 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101277 |
Contact Us |
10 |
ASME 1500 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101213 |
Contact Us |
10 |
ASME 1500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101285 |
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 |
10 |
ASME 2500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101293 |
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 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101246 |
Contact Us |
12 |
ASME 150 |
Sapphire (Bonded) |
316 Stainless |
-40 to 392°F |
强制上岸p图强制上岸p图,热鸟论坛挂了热鸟论坛挂了,三色绘恋剧情三色绘恋剧情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 300 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101254 |
Contact Us |
12 |
ASME 400 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101190 |
Contact Us |
12 |
ASME 400 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101262 |
Contact Us |
12 |
ASME 600 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101198 |
Contact Us |
12 |
ASME 600 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101270 |
Contact Us |
12 |
ASME 900 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101206 |
Contact Us |
12 |
ASME 900 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101278 |
Contact Us |
12 |
ASME 1500 |
SodaLime (Fused) |
316 Stainless |
-40 to 572°F |
101214 |
Contact Us |
12 |
ASME 1500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101286 |
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 |
12 |
ASME 2500 |
SodaLime (Fused) |
A105 Carbon |
-40 to 572°F |
101294 |
Contact Us |