Square Ptfe O Rings

Square rings and rubber washers can be used in basic cost sensitive applications.

Square ptfe o rings.

Square buna n nitrile nbr o rings 70 durometer. Consider replacing square rings with o rings or x rings that often provide greater performance for the same or. Standard usa square rings sizes. Should not exceed 3 of the rod gland diameter for o rings with an i d.

The o ring s outside diameter o d should be at least equal to or larger than the rod gland diameter to give interference on the o ring s o d. Rated for pressure up to 10 000 psi these seals withstand the highest pressure of our piston seals. A square o ring prevents these piston seals from rocking in the groove. Square rings and rubber washers can be molded machined or cut cost effectively depending on the size material and quantity.

These o rings have a square profile with flat edges on all four sides. Tolerances vary by manufacturing method so please contact our technical sales team if tight tolerances are required. Buna n o rings nitrile o rings nbr. Industrial square ring buna n duro 70 kit 436 pieces 36 size square o rings are square cross section seals designed to be interchangeable with standard as568 o rings 5 0 out of 5 stars 4 60 00 60.

Rings for claw clamp and bolt together high vacuum fittings for stainless steel tubing. Square cut o rings have been largely phased out by elastomeric sealing manufacturers since the invention of the quad ring or commonly also called a q ring or x ring. Ptfe backup o rings are designed to be used in conjunction with standard o rings to help prevent extrusion in high pressure applications or where extrusion gaps are excessive. Square o rings are still available from some manufacturers but they typically require tooling charges and or large quantity orders to produce them.

Ptfe exhibits some unique properties when used in o ring sealing systems the most well known is its impervious nature to virtually all fluids and gasses from 100 f to 450 f. Rectangular cross section features a split for easy installation. Only molten alkaline metals and certain halogenated compounds will degrade its integrity. They cover more surface than round profile o rings for a better seal in static applications such as hose pipe and faucet connections.

Ptfe o rings for tube fittings with straight thread connection. Greater than 250 mm or 5 for o rings with an i d. Smaller than 250 mm. Non standard sizes can be made within a few weeks typically without tooling fees so no need to settle for a less than optimal fit.