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Enquiry to Westring Sealing technology

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You can reach us directly by phone, fax and e-mail. We will be happy to call you back or send you an offer for your individual application request. (The fields marked with * are mandatory)

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Max-Mustermann

T: +49 01234 056 708 91


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STE

Cross-sectionProfile designationApplicationOperating pressure < MPaTemperature °C (depending on material)Glide speed < m/sDesign informationProduct details
STEHydraulics
Pneumatics
70
1,6
-100 to 250

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General

PTFE back-up rings are used to prevent gap extrusion (gap migration) of O-rings or WX-rings at high pressures, and thus to prevent damage to the elastomer sealing elements. Especially when used dynamically without a support ring, gap extrusion with simultaneous movement of the metal components leads to immediate damage to the sealing surfaces. But pulsating pressures with static sealing also have the same effect. Slotted and spiral designs can be easily inserted into a closed groove, whereas an open (divisible) installation space should preferably be provided for endless designs. For high and pulsating pressures we recommend endless designs.

Medium

can be used with almost all media

Material

Standard materials: various PTFE compounds, polyamides and polyurethanes

Advantages
  • can be produced at short notice
  • many PTFE + plastics as well as HPU materials available
  • easy to adapt to existing operating conditions and installation spaces
  • wide temperature range can be covered
  • universal chemical resistance
  • can support lubrication of the seal
Installation instructions

To avoid damage, the sealing elements must not be pulled over sharp edges or threads. With slotted versions the sealing element should be fitted first, followed by the back-up ring. With closed versions, the support ring should normally be fitted first, followed by the sealing element. The dimensions of the installation spaces are to be carried out according to the table below. In order to ensure proper function, the groove width must be considerably larger than all mounted support rings and sealing elements before the piston rod or piston is mounted in the cylinder barrel. The elements must therefore not already be laterally braced before their final assembly.

Area of application

in conjunction with O-rings and WX-rings to prevent gap extrusion

  • concave profile
  • slotted 30° or 45
  • for closed grooves and smaller diameters
  • Enlargement of the contact surface thereby protection of the O-ring in case of pulsating pressures
  • O-ring remains dimensionally stable, increasing service life and sealing force of the O-ring
  • for static use as well as axial stroke movements or slow rotary movements


Download | Detailed product information (PDF 891.1 kB)



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Düren
Westring Dichtungstechnik GmbH
Talbenden 4
D-52353 Düren

Phone: +49 24 28 - 80 29 - 0
Fax: +49 24 28 - 80 29 - 29
dueren@westring-dichtungstechnik.de

Opening hours:
Mon-Thu: 8.00 a.m. - 4.30 p.m
Fri: 8.00 a.m - 3.00 p.m

Köln
Westring Dichtungstechnik GmbH
Rudi-Jaehne-Str. 4
D-50769 Köln-Merkenich

Phone: +49 221 - 5 99 20 18 / 19
Fax: +49 221 - 5 99 53 62
koeln@westring-dichtungstechnik.de

Opening hours:
Mon-Thu: 8.00 a.m. - 4.30 p.m
Fri: 8.00 a.m. - 3.00 p.m

Plauen
Westring Dichtungstechnik GmbH
Fedor-Schnorr-Strasse 6
D-08523 Plauen

Phone: +49 37 41 - 42 30 - 0
Fax: +49 37 41 - 42 30 - 19
plauen@westring-dichtungstechnik.de

Opening hours:
Mon-Thu: 8.00 a.m. - 4.30 p.m.
Fri: 8.00 a.m. - 2.30 p.m

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