Back-up rings

Hi-Tech Seals

Contact:Jon Reeder

12064 FM 3083

Conroe,TX 77301

Call:(832)928-3233

Email:Send Email to Seller

www.hitechseals.com

Detailed description

Back-up rings are plastic or rubber rings used to prevent the O-ring from entering the clearance gap. When high pressures are exerted on the O-ring, its soft rubber material can be forced into the clearance gap causing the O-ring to extrude (see our O-ring brochure for examples of O-ring failure). The hard back-up ring material will keep the O-ring material from flowing into the gap which will prevent premature failure. Plastic Back-up rings come in cut styles 27595, 28774, 28782, which follow the respective MIL specifications.

Our KasPex™ PEEK MP39 compound is ideal material for back-up rings due to the compound’s high pressure and high temperature capabilities. Additional back-up ring materials include other KasPex™ PEEK compounds, PTFE, fluorocarbon/Viton™, and nitrile.