Symmetrical Lip PTFE Seal

Equal length, tapered lip design
Rotary & reciprocating service
Low friction seal material
Canted coil spring energized
Piston & housing-mounted

The symmetrical lip PTFE seal consists of a U-shaped seal jacket with dynamic and static lips of equal size. It is energized with a canted coil spring made from corrosion-resistant 316 stainless steel. The spring helps accommodate for small changes in the seal lip caused by wear, temperature change, or tolerance variations in the assembly. It also ensures effective sealing at startup and low pressures. This radial seal enables bi-directional assembly. It performs well in both piston and housing-mounted applications, and in both rotary and reciprocating service.

Graphite Fiber-Reinforced PTFE

Polymer-Filled PTFE

Product Name	Constrained Inside Diameter (ØB)	Seal Cross Section	Constrained Outside Diameter (ØA)	Maximum Surface Speed	Max Pressure, Captivated	Temperature Range	Price (Qty 10)
E19681	1 in.	0.09375 in.	1.1875 in.	125 fpm	1500 PSI	-50 to 350° F	$584.30
E19680	0.875 in.	0.09375 in.	1.0625 in.	125 fpm	1500 PSI	-50 to 350° F	$573.50
E19679	0.75 in.	0.09375 in.	0.9375 in.	125 fpm	1500 PSI	-50 to 350° F	$562.60
E19678	0.625 in.	0.09375 in.	0.8125 in.	125 fpm	1500 PSI	-50 to 350° F	$541.00
E19677	0.5 in.	0.09375 in.	0.6875 in.	125 fpm	1500 PSI	-50 to 350° F	$530.40
E19676	0.375 in.	0.09375 in.	0.5625 in.	125 fpm	1500 PSI	-50 to 350° F	$519.80
E19675	0.25 in.	0.09375 in.	0.4375 in.	125 fpm	1500 PSI	-50 to 350° F	$519.40
E19674	0.125 in.	0.09375 in.	0.3125 in.	125 fpm	1500 PSI	-50 to 350° F	$508.50
E19673	1 in.	0.0625 in.	1.125 in.	125 fpm	1500 PSI	-50 to 350° F	$584.30
E19672	0.875 in.	0.0625 in.	1 in.	125 fpm	1500 PSI	-50 to 350° F	$573.50
E19671	0.75 in.	0.0625 in.	0.875 in.	125 fpm	1500 PSI	-50 to 350° F	$562.60
E19670	0.625 in.	0.0625 in.	0.75 in.	125 fpm	1500 PSI	-50 to 350° F	$541.00
E19669	0.5 in.	0.0625 in.	0.625 in.	125 fpm	1500 PSI	-50 to 350° F	$530.40
E19668	0.375 in.	0.0625 in.	0.5 in.	125 fpm	1500 PSI	-50 to 350° F	$519.80
E19667	0.25 in.	0.0625 in.	0.375 in.	125 fpm	1500 PSI	-50 to 350° F	$519.40
E19666	0.125 in.	0.0625 in.	0.25 in.	125 fpm	1500 PSI	-50 to 350° F	$508.50

Product Name	Constrained Inside Diameter (ØB)	Seal Cross Section	Constrained Outside Diameter (ØA)	Maximum Surface Speed	Max Pressure, Captivated	Temperature Range	Price (Qty 10)
E19664	0.875 in.	0.09375 in.	1.0625 in.	125 fpm	1500 PSI	-50 to 250° F	$556.80
E19652	0.375 in.	0.0625 in.	0.5 in.	125 fpm	1500 PSI	-50 to 250° F	$504.70
E19665	1 in.	0.09375 in.	1.1875 in.	125 fpm	1500 PSI	-50 to 250° F	$567.30
E19663	0.75 in.	0.09375 in.	0.9375 in.	125 fpm	1500 PSI	-50 to 250° F	$546.30
E19662	0.625 in.	0.09375 in.	0.8125 in.	125 fpm	1500 PSI	-50 to 250° F	$525.30
E19661	0.5 in.	0.09375 in.	0.6875 in.	125 fpm	1500 PSI	-50 to 250° F	$515.00
E19660	0.375 in.	0.09375 in.	0.5625 in.	125 fpm	1500 PSI	-50 to 250° F	$504.70
E19659	0.25 in.	0.09375 in.	0.4375 in.	125 fpm	1500 PSI	-50 to 250° F	$504.30
E19658	0.125 in.	0.09375 in.	0.3125 in.	125 fpm	1500 PSI	-50 to 250° F	$493.80
E19657	1 in.	0.0625 in.	1.125 in.	125 fpm	1500 PSI	-50 to 250° F	$567.30
E19656	0.875 in.	0.0625 in.	1 in.	125 fpm	1500 PSI	-50 to 250° F	$556.80
E19655	0.75 in.	0.0625 in.	0.875 in.	125 fpm	1500 PSI	-50 to 250° F	$546.30
E19654	0.625 in.	0.0625 in.	0.75 in.	125 fpm	1500 PSI	-50 to 250° F	$525.30
E19653	0.5 in.	0.0625 in.	0.625 in.	125 fpm	1500 PSI	-50 to 250° F	$515.00
E19651	0.25 in.	0.0625 in.	0.375 in.	125 fpm	1500 PSI	-50 to 250° F	$504.30
E19650	0.125 in.	0.0625 in.	0.25 in.	125 fpm	1500 PSI	-50 to 250° F	$493.80

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