High Purity Blind Flange
The High Purity Blind Flange is a precision-engineered component used to completely seal or terminate high-purity piping systems. Designed for industries requiring contamination-free fluid handling—such as semiconductor manufacturing, pharmaceuticals, biotechnology, and ultrapure water (UPW) systems—this flange ensures a secure, leak-tight closure.
Manufactured from ultra-clean materials like PVDF HP, PFA, PP-H, or High-Purity PE, it offers superior chemical resistance, thermal stability, and ultra-smooth internal surfaces that prevent particle formation. The blind flange is essential for system maintenance, line isolation, testing, or future expansion in high purity distribution networks.
High Purity Blind Flange
- Provides complete sealing for pipe ends, ensuring zero fluid leakage.
- Manufactured from ultra-high purity materials suitable for critical industries.
- Excellent chemical resistance, ideal for acids, bases, solvents, and UPW.
- Smooth internal surfaces minimize particle generation and microbial growth.
- High mechanical strength for stable performance under pressure.
- Compatible with high-purity fusion technologies—IR welding, butt fusion, etc.
- Available in multiple standards (DIN, ISO, ASME).
- Corrosion-proof and non-leaching, ensuring process integrity.
- Tight dimensional tolerances for perfect sealing with companion flanges.
Technical Details of High Purity Blind Flange
| Parameter | Specification |
|---|---|
| Product Name | High Purity Blind Flange |
| Material Options | PVDF HP, PFA, PP-H, High-Purity PE |
| Function | Complete termination or sealing of process piping |
| Design Type | Solid plate flange |
| Size Range | 20 mm – 110 mm (custom sizes available) |
| Pressure Rating | PN10 / PN16 |
| Wall Thickness | As per material SDR (SDR 21, 17, 13.5, 11) |
| Temperature Range | PVDF HP: -40°C to 140°C; PFA: up to 220°C; PP-H: up to 90°C |
| Surface Roughness | ≤ 0.5 µm Ra (high-purity grade) |
| Connection Method | Bolted with gasket; compatible with HP flanged systems |
| Bolt Hole Standards | DIN / ISO / ASME (material dependent) |
| Chemical Resistance | Excellent — suitable for UPW, acids, alkalis, solvents |
| Color | Natural / Translucent (depending on material) |
| Applications | Semiconductor, pharma, biotech, UPW, cleanroom piping |
| Compliance Standards | SEMI F57, ASTM, DIN, ISO, USP Class VI |
Customization & Processing Options
Customizations Option Available for High Purity Blind 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
