High Purity Stub End Flange
The High Purity Stub End Flange is a precision-engineered fitting used for creating reliable, contamination-free flange connections in high-purity piping systems. Designed for industries that require ultra-clean fluid transfer—such as semiconductor manufacturing, pharmaceuticals, biotechnology, and ultrapure water (UPW) systems—it provides a secure, corrosion-resistant connection with minimal dead space and exceptional cleanliness.
Manufactured using premium high-purity materials such as PVDF HP, PFA, PP-H, or High-Purity PE, the stub end ensures excellent chemical compatibility, smooth internal surfaces, and long-term performance in high-purity environments. It is used together with backing rings to provide strong mechanical connections without compromising purity.
High Purity Stub End Flange
- Provides ultra-clean, leak-proof flange connections for high-purity piping systems.
- Manufactured from non-leaching, contamination-free materials suitable for sensitive applications.
- Smooth internal surface finish prevents buildup of particles and biofilms.
- Compatible with IR welding, butt fusion, and socket fusion joining methods.
- Resistant to chemicals, acids, solvents, and UPW.
- Supports easy assembly and disassembly for maintenance and line modification.
- Designed for use with high-purity backing rings for secure connections.
- Meets stringent purity standards (SEMI, ASTM, ISO, USP Class VI).
Technical Details of High Purity Stub End Flange
| Parameter | Specification |
|---|---|
| Product Name | High Purity Stub End Flange |
| Material Options | PVDF HP, PFA, PP-H, High-Purity PE |
| Function | Creates high-purity flange connections with backing rings |
| Size Range | 20 mm – 315 mm (material-dependent) |
| Wall Thickness Options | SDR 21, SDR 17, SDR 13.5, SDR 11 |
| Operating Temperature | PVDF: -40°C to 140°C; PFA: up to 220°C; PP-H: up to 90°C |
| Pressure Rating | PN10 / PN16 |
| Surface Finish (Internal) | ≤ 0.5 µm Ra (ultra-smooth) |
| Joining Methods | IR Welding, Butt Fusion, Socket Fusion |
| Chemical Resistance | Excellent—UPW, acids, bases, solvents |
| Color | Natural / Translucent (material-dependent) |
| Applications | Semiconductor, pharmaceuticals, UPW distribution, cleanroom systems |
| Standards Compliance | SEMI F57, ASTM, ISO, DIN, USP Class VI |
Customization & Processing Options
Customizations Option Available for High Purity Stub End Flange
At Petron Thermoplast, we offer customized PVDF fittings to meet your specific system requirements.
Customization options include:
- Tailor-made dimensions and wall thicknesses
- Custom-molded and machined PVDF fittings
- Pre-fabricated manifolds and assemblies
- Choice of connection type (butt fusion, socket fusion, or flanged)
- OEM branding or marking options
