Forum Re: Primary Seals for High Pour Point Waxy crudes
From: Dunedin [37]
Date: Thursday, March 11, 2010
Time: 4:31:39 AM
Remote Name: 88.108.112.224
Comments
No doubt about it, Mechanical Seal with Wax Scraper would be a good choice. There are however at least three options for you to consider:TS1 - Mechanical Pantograph Shoe Plate Primary Seal together with Compression Plate Secondary Seal TS16/1/2/4
This is a very robust seal system with excellent efficiency and long operating life. However it is the most expensive seal to install and maintain. To install the Primary Seal, access is required from the underside of the floating roof and this means taking the tank out of service for major seal repair/replacement. It also requires the addition of a Secondary Seal.
TS100 - Mechanical Lightweight Primary Seal together with Compression Plate Secondary Seal
Another very robust seal with excellent efficiency and long operating life. The Primary Seal can be installed and maintained from the top of the roof and therefore access is not required from the underside of the floating roof. This means it is not necessary to take the tank out of service for major seal repair/replacement. It also requires the addition of a Secondary Seal.
TS16 - Mechanical Double Compression Plate Seal
Another very robust seal with excellent efficiency and long operating life – in fact Land and Marine guarantee 12 years zero maintenance required when the tank is operating normally. This seal can be installed and maintained from the top of the roof and therefore access is not required from the underside of the floating roof. This means it is not necessary to take the tank out of service for major seal repair/replacement. However unlike the previous two seal systems, a separate Secondary Seal is not required as it already incorporated - this make it the most cost effective and efficient seal system available
