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Flow sight glass with flange connections suitable for ASME B 16.5
Flow sight glass Class 150 | 300 lbs
Non binding • Usually a response within 24 hours
NPS 1/2" – 2" Square cover flanges
NPS 2 1/2" – 8" Round cover flanges
The flow sight glass Type 550A Class 150/300 lbs is designed for industrial piping systems based on ASME B16.5 and ANSI/ASME flange standards. The sight glass enables reliable visual inspection of the medium during operation and is designed for applications with NPS nominal sizes and Class pressure ratings.
The installation position can be freely selected and adapted to the respective installation conditions of the plant. Design and engineering are carried out in accordance with PED 2014/68/EU and AD 2000.
Since the version is based on Type 550, however, the overall length corresponds to EN 558 and not to ASME.
In the standard version, the flow sight glass Type 550A is manufactured from cast stainless steel 1.4408.
For particularly demanding operating conditions, the flow sight glass can also be manufactured from special materials depending on the medium, temperature or chemical exposure.
The gaskets of the ASME B16.5 flow sight glass can also be adapted to the respective application. Flat gaskets with different material options are used, including novaphit® MST XP, KlingerSil® C4400, Garlock Gylon® and PTFE in pure or modified versions. More than 50 additional gasket materials are available on request.
For increased thermal stress, additional mica protection screens are available. In case of high chemical exposure, the sight glass can be equipped with an FEP or Halar® coating.
Thanks to our versatile manufacturing capabilities, the Class 150/300 flow sight glass can be optimally adapted to the respective individual operating conditions.
Depending on the requirements, versions with PTFE rotor, oil- and grease-free manufacturing or silicone-free design including crater test are possible. This allows the fitting to be configured not only mechanically and chemically, but also with regard to cleanliness and process requirements.
The flow sight glass Type 550A Class 150/300 lbs is designed for piping systems based on ASME B16.5 and ANSI/ASME flange standards.
Typical applications can be found in international industrial plant engineering, in the chemical industry, in petrochemicals and in project-specific piping and apparatus systems with a US-oriented design.
| NPS (Nominal size) | 1/2" | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" | 2 1/2" | 3" | 4" | 5" | 6" | 8" |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Outside diameter D (Class 150) [mm] | 89 | 98 | 108 | 118 | 127 | 152 | 178 | 191 | 228 | 254 | 279 | 343 |
| Outside diameter D (Class 300) [mm] | 95,2 | 117,3 | 123,8 | 133,4 | 155,6 | 165,1 | 190,5 | 209,6 | 254 | 279,4 | 317,5 | 381 |
| Face-to-face BL [mm] | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 |
| Clear view diameter D1 [mm] | 32 | 32 | 48 | 48 | 65 | 80 | 80 | 100 | 125 | 150 | 175 | 175 |
| Connecting flanges compatible with mating flanges according to ASME B 16.5 | ||||||||||||
The Flow sight glass Type 550A is designed for pipeline systems with connection dimensions according to ASME B16.5 and is suitable for applications with ANSI/ASME flange standards.
Type 550A is designed for the pressure classes Class 150 lbs and Class 300 lbs, making it suitable for numerous industrial applications with the corresponding flange specifications.
The Flow sight glass Type 550A is available in sizes from NPS ½" to 8". Smaller nominal sizes (NPS ½" to 2") are manufactured with square cover flanges, while larger versions (NPS 2 ½" to 8") are manufactured with round cover flanges.
In the standard design, Type 550A is manufactured from stainless steel casting 1.4408. For more demanding service conditions, special materials are also possible depending on the medium, temperature and chemical stress.
Yes, Type 550A can be adapted to different operating conditions. Possible options include various gasket materials, special coatings, additional options such as wipers, LED lamp or spraying device. On request, material test certificates and pressure test certificates are available.
