HEMISPHERICAL VAPOR BLADDER / GAS COLLECTION DIAPHRAGM INSTALLATION

Mesa Hemispherical Vapor Bladders are engineered for a precise fit in the holding tank. Below is an example of the type of instructions that are offered for installation of Mesa Hemispherical Vapor Bladders.

1. Move the bladder into the tank: the bladder will arrive at the job site either wrapped in burlap or in a lined wooden box (crate). If there exists a large enough opening in the roof the bladder should be moved with a crane, through a roof, into the tank while still in its shipping container for protection.
2. If the bladder must be taken in through a manway it will be necessary to remove it from the burlap wrapping or box. Lay it out in a safe area and roll or fold it into a long bundle small enough in diameter to fit through the largest available entry port.
3. Check the entry port and the adjacent areas inside and outside the tank for anything which might snag, slit or puncture the bladder as it is moved.
4. If the dollar plate is secured to the bladder at the factory the assembly must be moved very carefully- Note: If the heavy steel dollar plate is dropped onto the bladder against the floor it can puncture the bladder fabric.