The radial expansion of the EIS Sealing Plug causes the housing material around the plug to deform plastically. A proper minimum wall thickness, or distance from an edge is necessary to optimize the strength of the mechanical connection. The operating hydraulic pressure, thermal cycling, plug type and characteristics of the base metal must all be considered when determining these values. Please contact EIS for additional information.
The guidelines for a minimum wall thickness or distance from an edge (Wmin) are expressed below. These minimum values produce only slight deformation on the exterior profile of less than 20µm. This does not affect the performance of the EIS Sealing Plug. Using Wmin values less than those recommended can cause overloading of the base material. This can adversely influence the function of the EIS Sealing Plug. Please contact EIS for additional information.
| Wmin Guideline Values | |||||||
|---|---|---|---|---|---|---|---|
| Base Metal | |||||||
| EIS Series | SAE 1144 | SAE 10L15 | ASTM A48 Cast Iron |
ASTM A356 Ductile Iron |
2024-T4 | 6061-T6 | 356-T6 Cast Aluminum |
| Factor fmin | |||||||
| EIS-11 | 0.5 | 0.6 | 1.0 | 0.6 | 0.6 | 1.0 | 1.0 |
| EIS-31 | 0.6 | 0.8 | 1.0 | 0.8 | 0.8 | 1.0 | 1.0 |
