CTS40 Compression plate seal

The CTS40 is a rim mounted secondary seal that has developed itself as a leading design for secondary tank seals. Its design is based on compression plates pushing a rubber tip against the tank shell. As the seal design has no complex moving parts it will not encounter problems as a result of corrosion or any other hazards affecting seal performance through time. Each CTS40 seal will be specifically engineered and manufactured to fit the tank involved, making sure the seal will be able to deal with both the product stored as well as with the particular dimensional and design aspects of this tank. Behind the compression plates is a continuous vapour barrier ensuring excellent vapour tightness and fully shielded from weather exposure by the covering compression plates.

Design and engineering
A CTS40 seal is available in many different configurations. Tip design as well as seal design are subject to change depending on the service requirements and actual tank conditions.
Typically a CTS40 seal is designed for a nominal rim gap of 200 mm . (8 “) but rim gaps of 400 mm . ( 16” ) can be bridged if required.
CTS designs each individual seal for the tank it will be fitted on. This will prevent the installation of a standard seal, where it is possible to find out within months that this standard seal would not be able to deal with the actual rim gap or tank conditions.
A detailed tank inspection sheet will facilitate our engineering process. Delivery will include an as-built drawing for the supplied tank seal as well

Installation
CTS is capable of installing any seal on your tank, but our extensive drawings and installation manuals will facilitate you to have either your own or contractor staff install the seal and, if applicable, the integral foam dam as well. The advantage of having your own (contractor) staff installing the system could be significant, reducing travelling and lodging costs. Experienced CTS supervision is available upon request.

Materials, selection
Not just the design of the seal is important for its performance. Correct material selection might be even more important to ensure a long term adequate performance for any seal. In this respect one also has to realise that fabrics will be difficult to inspect and malfunctioning seals could represent a hazard, while still mechanically sound. Materials have to withstand the stored product, ozone, sun exposure and rain water contact. CTS is able to give you a profound advise on the optimal combination of materials, resulting in an economic seal design able to deal with the harshest conditions. Seals can be manufactured in a wide variety of materials, including different grades of stainless steel and polymer materials. This will make our seals suitable for processes with 100% aromatics or aggressive chemicals.