- Flanges: ANSI STD B-16, 125 lbs
- Housing: Cast Iron ASTM A48, Class 35
Applications: Ideal for abrasive, viscous and corrosive fluids including wastewater, mine slurries, chemicals, cement, pulp stock, powder and pellets.
Operation: The GSF consists of a rubber sleeve inside a full round cast iron bonnet assembly. Injecting compressed air into the bonnet assembly causes the rubber sleeve to collapse, blocking flow through the valve.