About Piston T-Seals
Piston T-Seals must be static and leak free, and if the seal leaks before movement, it may not be the right size, or the seal or piston rod is damaged. However, a seal that performs perfectly at static may leak significantly when the shaft does reciprocating motion, because the dynamic sealing mechanism is very different from the static sealing mechanism. In reciprocating motion, the seal mainly relies on the elastic fluid dynamic pressure action of the fluid film between the piston rod and the sealing contact surface to achieve the sealing effect.
Product introduction
| Product Name | Piston T-Seals |
| Product Description | Piston T-Seals are easy to install, have low leakage characteristics, and extend the service life of parts |
| Capabilities Applied/Processes | It can effectively eliminate spiral torsion failure and has better crush resistance than O-ring or stopper components |
| Color | Black, etc |
| Material Used | PTFE |
| Benefits | Temperature resistance, corrosion resistance, weather resistance, easy installation, etc |
| Hardness | 55-65 (Shore A) |
| Temperature | -200°~+260°C |
| Industry for Use | Hydraulic industry |
Characteristic of Piston T-Seals
T-seal is a common sealing structure, usually used in pipelines, valves and other equipment, its main role is to prevent media leakage, explosion-proof and so on. The ordinary T-ring is more suitable for light load rotary sealing. When Piston T-Seals are deformed under pressure, the section is sufficiently supported to accommodate high pressure without extrusion, while still having a large area in contact with the groove for stability. At the same time, the friction contact area is small, so the friction is comparable to the type 0 sealing ring. The retaining ring used with the rubber T-ring is best spiral wound, and can expand and shrink with the deformation of the T-ring when the pressure changes.
This section shape preserves Piston T-Seals with typical firmness and compactness without reducing the elasticity required for maximum compression due to pressure. The side Angle of this special T-ring section shape allows for an additional degree of freedom that allows the seal to tilt slightly. The maximum pressure point can then be moved to the sealing edge of the high pressure side. Instead, there is an intermediate deformation zone without compression or shear load on the low pressure side of the Piston T-Seals, effectively reducing the risk of extrusion of the seals.
The main characteristic of Piston T-Seals
Factors for selecting T-Seals:
1) Type of fluid used in the system
2) The maximum temperature of the system under working conditions
3) Expected functional reliability
4) Cost of seals
5) Working pressure of the system
6) Environmental conditions
Functions of seals:
1) Prevent oil leakage
2) Keep the pressure on
3) Prevent the system from being contaminated
4) Improve the functional reliability of components for a long time
5) Improve the working life of the system
Causes of seal failure:
1) Sealing material and oil incompatibility
2) Low actuator speed
3) If the seal is not installed correctly, the seal may fail
4) The high temperature of the oil will burn the seal
5) If the seal is squeezed excessively, it may fail
Why T-Seals?
The T-seal is a three-piece bi-directional seal consisting of T-rubber and two anti-squeeze rings. This seal element is designed for use in standard O-ring grooves and is often used to replace faulty O-rings that have been turned over. Piston T-Seals The geometric shape of Piston T-seals prevents torsional deformation. The T-seals can withstand high pressures and large clearances thanks to a rigid back ring material. The back ring material is also extrusion resistant.
T-seals can also be used in many oilfield and hydropneumatic (air-oil pressure) applications, including dynamic and static applications such as superchargers, jacks, cylinders, shock absorbers, drilling lines, valves and pumps.
