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PT T-Seal

Movement

Reciprocating

Static

Duty

Medium Pressure

Action

Single/Double

Description:

The PT Piston Seal is a T-shaped elastomeric sealing element supported by Back-up ring on both sides. It provides excellent sealing performance in both double and single acting applications. The RT is used in reciprocating hydraulic and pneumatic equipment and in high-pressure applications. It fits into the same simple groove as O-rings and eliminates rolling or spiraling, even under long stroke or dry rod conditions. It does not wedge into clearances or pinch off under motion or pressure and has good low-pressure sealing capabilities.

Features
  • High pressure
  • Geometrically locked assembly and wide base “T” geometry eliminate seal roll and spiral failure
  • Fits into standard O-ring grooves
  • Excellent temperature resistance when combined with FKM and PEEK
  • Ability to fit into existing grooves means that a retrofit can be made with no re-machining or major revisions to the existing hardware design.
  • With the possibility of rapid strokes, lateral shock loads, pressure surges, and uneven wear or stretching, T-seals still maintain zero extrusion gaps.
Applications
  • High pressure applications
  • MWD tools
  • Molding machines
  • Aerospace equipment
  • Industrial hydraulics
  • Mobile equipment
Technical Data

Sealing Element:

Material:

Nitrile/FKM/HNBR

Material Code:

0101/0201/0120

Note: Alternative materials are available upon request

Back-up Rings:

Material:

PEEK/Unfilled PTFE

Material Code:

5001/1001

Temperature:

-40°C to +204°C
-40°F to +400°F

Speed:

3 ft/s

Pressure:

10,000 psi

Media:

Chemical compatibility chart

Note: All parameters can vary depending on the specific application, please take the above information as a general guideline. Should you have any concerns please contact us at info@kcseals.ca

Hardware Design Guidelines & Part Numbers

Radial clearances: inch"

Rod Diameter RangeMaximum Clearance
0.123" to 0.375" 0.004"
0.376" to 1.500" 0.005"
1.501" to 4.500" 0.007"
4.501" to 8.500" 0.009"
Over 8.500" 0.010"

Note: Max Diametrical Gap can vary depending on what material is chosen, as well as the temperature and media of the application. Please contact our sales department for more info@sales@kcseals.ca

Surface finish: µinch

Roughness DepthMating SurfaceGroove Surface
Rmax 40-160 <625
RzDin 25-100 <400
Ra 4-16 <63

Note: The sizes listed below are all standard profile dimensions, K.C. Seals can and does manufacturer to non-standard housing dimensions.

Style Part #A Groove WidthH Groove DiameterG Bore Diameter
PT 0.150 0.190 0.375
PT 0.150 0.252 0.437
PT 0.150 0.315 0.500
PT 0.185 0.317 0.562
PT 0.185 0.380 0.625
PT 0.185 0.442 0.687
PT 0.185 0.505 0.750
PT 0.185 0.567 0.812
PT 0.185 0.630 0.875
PT 0.185 0.692 0.937
PT 0.185 0.756 1.001
PT 0.185 0.818 1.063
PT 0.185 0.881 1.126
PT 0.185 0.943 1.188
PT 0.185 1.006 1.251
PT 0.185 1.068 1.313
PT 0.185 1.131 1.376
PT 0.185 1.193 1.438
PT 0.185 1.256 1.501
PT 0.235 1.256 1.501
PT 0.304 1.256 1.501
PT 0.185 1.318 1.563
PT 0.185 1.381 1.626
PT 0.185 1.442 1.688
PT 0.185 1.506 1.751
PT 0.235 1.506 1.751
PT 0.304 1.506 1.751
PT 0.280 1.506 1.876
PT 0.280 1.627 2.001
PT 0.334 1.627 2.001
PT 0.424 1.627 2.001
PT 0.280 1.752 2.126
PT 0.280 1.877 2.251
PT 0.334 1.877 2.251
PT 0.424 1.877 2.251
PT 0.280 2.002 2.376
PT 0.424 2.002 2.376
PT 0.280 2.127 2.501
PT 0.334 2.127 2.501
PT 0.424 2.127 2.501
PT 0.280 2.252 2.626
PT 0.280 2.377 2.751
PT 0.424 2.377 2.751
PT 0.280 2.502 2.876
PT 0.424 2.502 2.876
PT 0.280 2.627 3.001
PT 0.334 2.627 3.001
PT 0.424 2.627 3.001
PT 0.280 2.752 3.126
PT 0.280 2.877 3.251
PT 0.280 3.003 3.377
PT 0.280 3.128 3.502
PT 0.334 3.128 3.502
PT 0.424 3.128 3.502
PT 0.280 3.253 3.627
PT 0.280 3.378 3.752
PT 0.280 3.503 3.877
PT 0.280 3.628 4.002
PT 0.334 3.628 4.002
PT 0.424 3.628 4.002
PT 0.280 3.753 4.127
PT 0.280 3.878 4.252
PT 0.280 4.003 4.377
PT 0.280 4.128 4.502
PT 0.334 4.128 4.502
PT 0.424 4.128 4.502
PT 0.280 4.253 4.627
PT 0.334 4.253 4.627
PT 0.280 4.378 4.752
PT 0.424 4.378 4.752
PT 0.280 4.503 4.877
PT 0.280 4.629 5.003
PT 0.424 4.629 5.003
PT 0.475 4.524 5.000
PT 0.579 4.524 5.000
PT 0.366 4.649 5.128
PT 0.366 4.774 5.253
PT 0.579 4.774 5.253
PT 0.366 4.899 5.378
PT 0.366 5.024 5.503
PT 0.475 5.024 5.503
PT 0.579 5.024 5.503
PT 0.366 5.149 5.628
PT 0.366 5.274 5.753
PT 0.366 5.399 5.878
PT 0.366 5.524 6.003
PT 0.475 5.524 6.003
PT 0.579 5.524 6.003
PT 0.366 5.649 6.128
PT 0.366 5.774 6.253
PT 0.475 5.774 6.253
PT 0.579 5.774 6.253
PT 0.366 5.899 6.378
PT 0.366 6.024 6.503
PT 0.475 6.024 6.503
PT 0.579 6.024 6.503
PT 0.366 6.274 6.753
PT 0.366 6.524 7.003
PT 0.475 6.524 7.003
PT 0.579 6.524 7.003
PT 0.366 6.774 7.253
PT 0.366 7.024 7.503
PT 0.579 7.024 7.503
PT 0.366 7.274 7.753
PT 0.366 7.524 8.003
PT 0.579 7.524 8.003
PT 0.366 7.774 8.253
PT 0.475 7.774 8.253
PT 0.366 8.024 8.503
PT 0.366 8.524 9.003
PT 0.475 8.524 9.003
PT 0.579 8.524 9.003
PT 0.366 9.024 9.503
PT 0.366 9.524 10.003
PT 0.475 9.524 10.003
PT 0.366 10.024 10.503
PT 0.366 10.524 11.003
PT 0.366 11.024 11.503
PT 0.366 11.524 12.003
PT 0.475 11.524 12.003
PT 0.366 12.024 12.503
PT 0.366 12.524 13.003
PT 0.475 12.524 13.003
PT-124 0.366 13.024 13.503
PT-125 0.366 13.524 14.003
PT-126 0.475 13.524 14.003
PT-127 0.366 15.024 15.503
Style Part #A Groove WidthH Groove DiameterG Bore Diameter