ASME B16.5 Class 400 Threaded Flange are designed for robust performance. A key characteristic of the threaded (screwed) design is its ability to be installed without welding. This makes them ideal for highly explosive environments or maintenance in active plants where hot work permits are difficult to obtain. HT PIPE supply all different types and scales of flanges. Please feel free to contact us for further product information and pricing.
Material and NPT Precision
The reliability of a Class 400 threaded connection depends heavily on the precision of the National Pipe Thread (NPT). Our manufacturing process utilizes high-precision CNC machining to ensure taper and thread depth meet ANSI/ASME B1.20.1 standards.
Local Supply
When executing projects in major industrial hubs-such as Houston, Shanghai, or Dubai-logistics speed is as important as quality. Local sourcing ensures:
- Immediate access to Mill Test Reports (MTRs).
- Reduced lead times for custom-faced requirements (e.g., RTJ).
Frequently Asked Questions
Q: Can I use Class 400 flanges in a Class 600 system?
A: No. While dimensions match in smaller sizes, the pressure-temperature rating is significantly lower. Using them in a higher-rated system risks catastrophic seal failure.
