Jacoby Tarbox — Sight Windows
ASME Code Sight Windows
Models 5200PVQ & 5300PVQ · ASME BPVC Section VIII · U-Stamp Available · Full Documentation
ASME Code Sight Windows
Sight windows designed and stamped to ASME Section VIII Division 1 for pressure vessel applications requiring code compliance. Available in flanged and weld-neck configurations. Full material traceability and documentation package available.
ASME Code Compliance
The "PVQ" designation indicates Pressure Vessel Quality construction. These windows are designed and fabricated to ASME BPVC Section VIII, Division 1 requirements — mandatory for sight windows installed in ASME Code-stamped pressure vessels.
Available Models
The Model 5200PVQ is an ASME Code sight window designed and fabricated to ASME Boiler and Pressure Vessel Code (BPVC) Section VIII requirements. The round viewing port provides a circular window for pressure vessel inspection. The "PVQ" designation indicates Pressure Vessel Quality construction with full ASME Code documentation.
Sizes
1" – 4" nominal viewing diameter
Pressure
Per ASME Code (size, material, and glass dependent)
Temperature
Up to 450°F (borosilicate); up to 530°F (UniGlas)
Body
Carbon Steel standard; 316 SS, Alloy 20, Hastelloy available
Glass
Borosilicate standard; UniGlas, Quartz available
Documentation
Mill certs, ASME U-stamp available, NB registration available
The Model 5300PVQ is an ASME Code oblong (rectangular with rounded ends) sight window. The oblong shape provides a wider viewing area than a round window of the same nominal size, making it easier to observe process conditions inside the vessel. Designed and fabricated to ASME BPVC Section VIII with full Code documentation.
Sizes
1" x 2" – 3" x 6" nominal viewing area
Pressure
Per ASME Code (size, material, and glass dependent)
Temperature
Up to 450°F (borosilicate); up to 530°F (UniGlas)
Body
Carbon Steel standard; 316 SS, Alloy 20, Hastelloy available
Glass
Borosilicate standard; UniGlas, Quartz available
Documentation
Mill certs, ASME U-stamp available, NB registration available
ASME Code Requirements & Compliance
| Item | Details |
|---|---|
| Code | ASME Boiler and Pressure Vessel Code (BPVC) Section VIII, Division 1 |
| Design | Designed per ASME Code rules for pressure vessel openings |
| Materials | ASME-listed materials with mill certifications |
| Fabrication | Fabricated by ASME-authorized manufacturer |
| Inspection | Third-party inspection available; AI (Authorized Inspector) witness available |
| Stamping | ASME U-stamp available for pressure vessel components |
| Registration | National Board (NB) registration available |
| Documentation | Data reports, mill certs, weld procedures, welder qualifications |
PVQ vs. Standard Sight Windows
| Aspect | Standard Window | PVQ (ASME Code) |
|---|---|---|
| Design Basis | Manufacturer's standard design | ASME BPVC Section VIII rules |
| Materials | Commercial grade | ASME-listed materials with mill certs |
| Fabrication | Standard shop practice | ASME-qualified welders and procedures |
| Inspection | Manufacturer's QC | Third-party AI inspection available |
| Documentation | Standard data sheet | Full ASME Code documentation package |
| Stamping | None | ASME U-stamp available |
| Required When | General service vessels | Code-stamped pressure vessels; regulatory requirement |
Industries Requiring ASME Code Windows
ASME Code sight window sales & documentation
Contact us for ASME Code requirements, U-stamp, NB registration, and documentation packages.
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