Parker’s T-Seals were originally developed to replace existing O-ring seals in hydraulic and pneumatic systems. The objective was to preserve the advantages of O-rings in dynamic fluid power applications while ending two of their most serious reliability problems:
1. Extrusion through the gap between static and dynamic surfaces
2. Instability in their grooves, which led to spiral or twisting failure

The T-Seal eliminates both of these issues while retaining the space-saving attributes of the compact O-ring groove. Above all, the T-Seal meets or exceeds the O-ring’s outstanding ability to seal at all pressures and temperatures.

Due to fitting into existing grooves, T-Seals can be retrofitted without requiring machining or major modifications of the existing hardware design. This simplifies both field changes and new equipment manufacturing.

The bi-directional seals can be used for rod or piston applications and are specifically engineered for reciprocating applications. The T-Seal product series is available to retrofit in BS-1806 grooves or can be custom-designed for applications and grooves.

Product benefits:
• Pressure resistance up to 15,000 psi
• Temperature resistance up to 600 °F (320 °C)
• Bi-directional sealing
• Retrofit in BS-1806 grooves
• Custom designs available for specific applications
• Size range from 1/2"" (12.7 mm) to 20"" (500 mm) in diameter
• Available for both static and dynamic applications
• Materials certified to API 6A FF/HH and Norsok M710 (ISO 23936-2)
• Available with virgin and filled PTFE and PEEK backup rings

The T-Seal is available in the following compounds:
N4007: HNBR, 95 Shore A, -32 / +150 °C
N4035: HNBR, 80 Shore A, -30 / +150 °C
N4039: HNBR, 90 Shore A, -30 / +150 °C
KA183: HNBR, 85 Shore A, -48 / +150 °C
KB163: HNBR, 90 Shore A, -32 / +150 °C
VG109: FKM, 90 Shore A, -45 / +200 °C
V1238: FKM, 95 Shore A, -26 / +200 °C
FF400: FFKM, 80 Shore A, -40 / +275 °C
FF202: FFKM, 90 Shore A, -15 / +320 °C

Range of application:
Running tools, wellhead, valves, actuators, BOPs in the oil and gas industry

Please contact us for more information:
Our application engineering team will be happy to discuss your requirements and work with you to find the best solution for your application profile.

T-Seal for Oil and Gas Applications (Prädifa)