Static Seals

O-ring

Simple sealing element used predominantly for static sealing.

    Since PTFE has almost no elastic properties, an expansion slot is machined into the O-ring. This must always face the pressure side. The pressure side is illustrated with "P".  

PTFE O-ring

A PTFE O-ring is an endless round ring that has a circular cross section and is predominantly used as an axial static seal. By pressing the cross section during installation, the sealing effect comes into play. Since PTFE has a negligible elastic behavior, an expanding slot has been incorporated around the circumference. This side has to permanently face the pressure side.

PTFE O-rings are always used when the general elastomer O-ring cannot withstand the needed resistance for thermal or chemical applications. Due to good chemical resistance, physiological harmlessness and sterilizability, PTFE O-rings are widely used in the chemical industry, petrochemistry as well as in the medicine and food industry.   

fields of application
static
dynamic
single-acting
double-acting
linear
rotatory
oscillating
materials
PTFE, PTFE with filling material
technical data
pressure up to 40 MPa
temperature -200°C / + 260°C (material dependent)
speed -
Maximum values temperature, speed and pressure are simultaneously not applicable! The values vary in dependence of material and media. For technical queries please contact our application consultants – we have the right solution for you. 
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Your contact person regarding

Technical topics - general sealing applications, special designs

Do you have any questions, ideas or suggestions?

We would be happy to advise you.

Personally, by phone or in digital form.

Mr. Thomas Stegmaier
+49 (0) 7034 2518 - 240

thomas.stegmaier(a)ulman.de

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