Bellows seal valve suitable for challenging applications

An example of this is the company's range of valves available in a bellows seal design, such as the Type 808 bellows sealed globe valve. This is suitable for critical, zero-fugitive emission, high-purity or high-vacuum applications where the potential for hazardous emissions has to be eliminated.

The bellows forms a flexible static seal that is leak-free, as long as the integrity of the bellows remains intact. Should the valve fail, a set of back-up packing allows the valve to continue to operate safely until repairs can be made. 

The valve is available in sizes ¼, ½, ¾ and 1in. Standard features include interchangeable trim sets, bellows packing, PTFE CV ring back-up packing and PTFE bellows gasket. The trim characteristics available are; linear, equal percentage, quick-open, or double taper. A range of accessories to enable the valve to suit specific application requirements includes positioners, filter regulators, gauges, I/P limit switches and solenoid valves.

Badger Type 808 Bellows Valves can be widely used in industrial applications including  research and process plants on liquids, gases or steam.