Service Valve is sealed from outside elements.

Red Valve Co./Tideflex Technologies Mar 12, 2002

Press Release Summary:

Series 75B eliminates need for vaults and manholes by allowing direct burial of valve. Pinch sleeve completely isolates process material from operating mechanism. There are no cavities or seals that can clog or leak, and full-port opening minimizes plugging risk. Valve is protected by exterior coating to resist corrosion. It is available in ANSI sizes from 1 in. to 30 in., with stem extensions to customer specifications.

Original Press Release:

Large Diameter Buried Service Valve

The Series 75B from Red Valve eliminates the need for vaults and manholes by allowing direct burial of the valve. The key to this ability is the long-wearing pinch sleeve, which completely
isolates the process material from the operating mechanism. There are no cavities or seals that can become clogged or leak, and the full-port opening of the valve virtually eliminates plugging. All routine maintenance can be performed from the surface, and "smart" sleeves are available to indicate sleeve wear.

The valve is completely sealed from outside elements, and protected by an exterior coating to resist corrosion. Available in sizes from ANSI 1" to 30" with stem extensions to customer
specifications.