ST331 Single Turn Split PTFE Back-Up Ring



$1.620

Qty Discounts Prices
5-199
$1.620
200-1,999
$1.080
2,000-2,499
$0.540
2,500+
$0.810
  • Model: ST331
    Dimensions: Fits O-Ring Size -331
    0.183" W X 2.268"ID X 0.076"HT
    4.649mm W X 57.608mm ID X 1.931mm HT
  • 22 in Stock
Add to Cart:
Min Qty:  5

AS568-331 (0.183" W X 2.268"ID X 0.076"HT)

PTFE Back-up Rings are designed to prevent extrusion in rubber O-ring sealing systems. The amount of this extrusion is affected by O-ring hardness, operating temperature, operating pressure and clearance of the mating surface.

Increased Pressure: The use of Back-up Rings should be considered for systems with operating pressure above 2000 PSI. At these pressures the mechanical forces applied to the O-Ring may cause extrusion of the O-ring into the clearance gap.

Operating temperature: The use of Back-up Rings should be considered for elevated temperatures greater than 160°F (71C). The physical and mechanical properties of O-rings may be affected at these temperatures, this increasing the risk of extrusion into the clearance gap.

Industrial Trends: Today's fluid power systems continue to move towards higher pressures and temperatures. PTFE Back-up Rings should be considered as a reliable component to achieve satisfactory system performance

Copyright © 2024 The O-Ring Store, LLC
1847 Wilma Dr, Clarkston WA 99403
Phone 208-413-6377 - Fax 208-413-6719