WHAT IS A SQUARE RING?

A Square-Ring is a sealing device made in the form of a torus, with a square shaped cross-section. It is available in a variety of elastomeric and thermoplastic materials. In most static applications, it is a direct replacement for an O-ring and generally will perform a high pressure gasketing function as well as or better than an O-ring.
The major square-ring features are:
(left: cross section of square ring)
- Interchangeable with O-rings size for size (Standard AS568A sizes)
- Uses same groove as O-ring
- Can be used for radial seals
- Material is homogenous, no joints, no laminations
- Edges accurately formed
- Extreme close tolerances held on cross-section, I.D. and O.D.
- Controlled surface smoothness, hardness, elasticity, toxicity, texture
- The modern, economical option for static applications
- Available in many compounds

WHY USE A SQUARE-RING?

The primary reason for using a Square-ring in a sealing application is that they perform the sealing function in a superior manner - and at cost lower than any other comparable sealing device. For existing applications, there is no need to change the design or procedures. Square-rings fit in O-ring grooves and are interchangeable size for size.

SQUARE RINGS IN STOCK IN BUNA 70 DURO

006S-050S
107S-178S
203S-273S
325S-375S
423S-448S
Many stock in Fluorocarbon, EPDM and Silicone


SQUARE RING SIZING CHART
Click Here To View Chart (.doc)


Allied Seals Inc.
PO Box 4913
7345 N. Ridgeway Ave.
Skokie, IL 60076
Phone: (847)673-2080 Fax: (847)673-0034