High Purity Backing Rings
The High Purity Backing Rings are precision-machined components used to reinforce and align flanged connections in ultra-clean piping systems. Made from corrosion-resistant and high-purity-compatible materials such as PVDF, PFA-coated stainless steel, or solid PTFE, these rings ensure even distribution of bolt load and maintain a secure, leak-proof seal in conjunction with high-purity flanges. They are essential in applications where purity, chemical resistance, and mechanical stability are critical.
Key Features of High Purity Backing Rings
- High-Purity Compatible Materials: Available in PVDF, PTFE, or PFA-coated stainless steel for corrosion-free performance.
- Secure Flange Alignment: Ensures precise mating and bolt-load distribution for leak-proof seals.
- Excellent Chemical Resistance: Resistant to aggressive chemicals, acids, and solvents.
- Thermal Stability: Maintains integrity under high-temperature processing conditions.
- Durable & Reusable: Offers high mechanical strength and long-term reliability.
- Cleanroom Fabrication: Manufactured under ISO Class 100 or better conditions.
- Standards Compliant: Meets SEMI F57 and other relevant high-purity process standards.
Technical Information
| Parameter | Details |
|---|---|
|
Available Sizes |
1/2” to 4” (custom sizes available) |
|
Material Options |
PVDF, PTFE, PFA-coated Stainless Steel |
|
Application Type |
Used with high-purity flanges and stub ends |
|
Temperature Resistance |
PVDF: up to 150°C
PTFE/PFA: up to 260°C
|
|
Chemical Resistance |
Excellent (inert to most acids, bases, and solvents) |
|
Surface Finish |
Smooth machined surface; no burrs or contaminants |
|
Compliance Standards |
SEMI F57, FDA, USP Class VI (for PTFE/PFA versions) |
|
Manufacturing Environment |
ISO Class 100 or better cleanroom |
|
Typical Applications |
Flanged piping systems, chemical delivery lines, ultrapure process fluid systems |
High Purity Pipe Fittings Range
Petron Thermoplast
