What Makes X-Ring Seals Better?

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Twice the Sealing Surface — Multi-lobed design provides more sealing surfaces than standard O-Rings.

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Prolonged Seal Life – With multiple seal points, less squeeze is required to provide an effective seal. Less friction and wear will increase seal life and lower maintenance costs.

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Prevents Spiral Failure – The “X” profile creates a stable seal that is more resistant to rolling in a groove than an O-Ring when used in a dynamic application.

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Reduced Leakage – Parting lines of X-Ring seals are located in the valley between the lobes away from the critical sealing surface.

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Better Lubricant Retention – Grooves on the inside and outside diameter of these rings retain lubricant thereby lowering friction and extending packing life.

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Less Force, Better Seal – Lower breakaway forces and reduced operating pressures make them ideal in reciprocating applications.

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The Right Fit – X-Rings will fit in standard O-Ring grooves for most applications.
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Item #

C/S (inches)

C/S Tol +/-

I.D. (inches)

I.D. Tol +/-

O.D. (REF) (inches)

Nominal C/S (inches)

Nominal I.D. (inches)

Nominal O.D. (inches)

4444-127 N/A .103 N/A .003 N/A 1.424 N/A .012 N/A 1.630 N/A 3/32 N/A 1 7/16 N/A 1 5/8
4444-128 N/A .103 N/A .003 N/A 1.487 N/A .012 N/A 1.693 N/A 3/32 N/A 1 1/2 N/A 1 11/16
4444-129 N/A .103 N/A .003 N/A 1.549 N/A .015 N/A 1.755 N/A 3/32 N/A 1 9/16 N/A 1 3/4
4444-130 N/A .103 N/A .003 N/A 1.612 N/A .015 N/A 1.818 N/A 3/32 N/A 1 5/8 N/A 1 13/16
4444-131 N/A .103 N/A .003 N/A 1.674 N/A .015 N/A 1.880 N/A 3/32 N/A 1 11/16 N/A 1 7/8
4444-132 N/A .103 N/A .003 N/A 1.737 N/A .015 N/A 1.943 N/A 3/32 N/A 1 3/4 N/A 1 15/16
4444-133 N/A .103 N/A .003 N/A 1.799 N/A .015 N/A 2.005 N/A 3/32 N/A 1 13/16 N/A 2
4444-134 N/A .103 N/A .003 N/A 1.862 N/A .015 N/A 2.068 N/A 3/32 N/A 1 7/8 N/A 2 1/16
4444-135 N/A .103 N/A .003 N/A 1.925 N/A .017 N/A 2.131 N/A 3/32 N/A 1 15/16 N/A 2 1/8
4444-136 N/A .103 N/A .003 N/A 1.987 N/A .017 N/A 2.193 N/A 3/32 N/A 2 N/A 2 3/16
4444-137 N/A .103 N/A .003 N/A 2.050 N/A .017 N/A 2.256 N/A 3/32 N/A 2 1/16 N/A 2 1/4
4444-138 N/A .103 N/A .003 N/A 2.112 N/A .017 N/A 2.318 N/A 3/32 N/A 2 1/8 N/A 2 5/16
4444-143 N/A .103 N/A .003 N/A 2.425 N/A .020 N/A 2.631 N/A 3/32 N/A 2 7/16 N/A 2 5/8
4444-144 N/A .103 N/A .003 N/A 2.487 N/A .020 N/A 2.693 N/A 3/32 N/A 2 1/2 N/A 2 11/16
4444-145 N/A .103 N/A .003 N/A 2.550 N/A .020 N/A 2.756 N/A 3/32 N/A 2 9/16 N/A 2 3/4
4444-150 N/A .103 N/A .003 N/A 2.862 N/A .022 N/A 3.068 N/A 3/32 N/A 2 7/8 N/A 3 1/16
4444-153 N/A .103 N/A .003 N/A 3.487 N/A .024 N/A 3.693 N/A 3/32 N/A 3 1/2 N/A 3 11/16
4444-154 N/A .103 N/A .003 N/A 3.737 N/A .028 N/A 3.943 N/A 3/32 N/A 3 3/4 N/A 3 15/16
4444-155 N/A .103 N/A .003 N/A 3.987 N/A .028 N/A 4.193 N/A 3/32 N/A 4 N/A 4 3/16
4444-159 N/A .103 N/A .003 N/A 4.987 N/A .035 N/A 5.193 N/A 3/32 N/A 5 N/A 5 3/16
4444-163 N/A .103 N/A .003 N/A 5.987 N/A .035 N/A 6.193 N/A 3/32 N/A 6 N/A 6 3/16
4444-168 N/A .103 N/A .003 N/A 7.237 N/A .045 N/A 7.443 N/A 3/32 N/A 7 1/4 N/A 7 7/16
4444-170 N/A .103 N/A .003 N/A 7.737 N/A .045 N/A 7.943 N/A 3/32 N/A 7 3/4 N/A 7 15/16
4444-177 N/A .103 N/A .003 N/A 9.487 N/A .055 N/A 9.693 N/A 3/32 N/A 9 1/2 N/A 9 11/16
4444-201 N/A .139 N/A .004 N/A .171 N/A .005 N/A .449 N/A 1/8 N/A 3/16 N/A 7/16
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