Robar - Flange Back-Up Rings

Precision-Engineered Robar Flange Back-Up Rings

Robar Flange Back-Up Rings support plastic and elastomeric seal connections, ensuring stability and secure placement in piping systems. Designed to facilitate the connection between polyethylene pipes and non-PE components, these high-quality rings enable easy assembly and disassembly while maintaining structural integrity. Their precise engineering enhances durability and reliability in both standard and corrosive environments, making them a versatile and dependable solution for flanged pipe connections.

Why Choose Robar-Flange Back-Up Rings?

Robar is popular for producing flange back-up rings that enhance the durability and performance of gasketed joints in piping systems. Designed for challenging environments, they prevent gasket extrusion, ensuring a secure and long-lasting seal. Made from high-quality materials like stainless steel and ductile iron, they resist wear and deformation, reducing maintenance costs. We ship these products from our Canadian warehouse for your convenience. Check out our available products below:

Robar 9500 Epoxy Coated Cast Ductile Back-Up Flange Rings

The Robar 9500 Epoxy Coated Cast Ductile Back-Up Flange Rings meet ASA B16.5 standards with a 150-pound bolt pattern and are made from cast ductile iron (ASTM A536). They feature a fusion-bonded epoxy coating (AWWA C-213) and support up to 150 PSI working pressure.

FAQs

1. How do flange back-up rings enhance the performance of pipe joints?

Flange back-up rings enhance performance by supporting the gasket and maintaining uniform compression, which helps prevent leaks. They also strengthen the joint, allowing for better load distribution and extending the lifespan of the piping system.

2. Are flange back-up rings necessary for all pipe flanges?

While not always required, flange back-up rings are essential for non-metallic pipes, such as PVC and HDPE, to prevent flange deformation. They are particularly useful in high-pressure systems, where maintaining a strong and leak-free connection is critical.

3. How do you choose the right flange back-up ring size?

The correct size is determined by the pipe’s diameter, flange type, and pressure rating. Manufacturers typically provide sizing charts to ensure proper fit, as an incorrect size may lead to improper sealing or joint failure.

4. Can flange back-up rings be reused after disassembly?

Reusability depends on the material and condition of the ring. Metal back-up rings can often be reused if they are undamaged, while plastic or composite rings may degrade over time and require replacement for optimal performance.

5. Do flange back-up rings help with thermal expansion in piping systems?

Yes, they help accommodate thermal expansion by maintaining structural integrity and ensuring that the flange connection remains secure even when the pipe material expands or contracts due to temperature changes.