The spring-type mechanical shoe seal features a simple, cost-effective design. It is easy to install without the need for hot work, such as welding, while providing reliable sealing performance.
The shoes are held in continuous contact with the tank shell and extend into the product by means of hanger arms. High-tensile stainless steel springs apply pressure to the shoe at both the upper and lower positions.
A vapor membrane seals the vapor space between the shoe and the roof, isolating it from the atmosphere.