Posi-flate, with offices in the UK and USA, has introduced an inflatable seated butterfly valve with a highly polished 316 stainless steel housing and disc. The single piece disc and shaft is available in a number of materials including 316L stainless steel and Hastelloy. The disc may be polished to a mirror finish or coated with PTFE, nylon or other high performance coating. The stainless steel valve is equally suitable for powders, granules, slurries and liquids and is available in sizes 22in (50mm) to 20in (500mm). Typical applications include loading and unloading of process material, sterile air control, and an outlet valves for storage containers or hoppers. It is suitable for many applications, such as food, chemical and pharmaceutical.
 

The inflatable seat design of the Posi-flate butterfly valve provides a better seal by utilising air pressure to expand the seat against the disc, providing more sealing area and an even pressure distribution against the disc every time. The seat automatically compensates for wear when it inflates against the disc, extending valve life considerably. www.posiflate.com 

 

 

 

 

 

 

 

 

Posi-flate’s stainless steel butterfly valve