The Figure 990 butterfly valve has a split, wafertype body, features a one piece disc stem and field replaceable seat. The range of available materials makes these valves suitable for a wide variety of applications.
Features & Benefits:
Factory testing of every valve at full rating ensures 100% bubble-tight shut-off.
Standardized actuator flange for easy operator interchangeability and mount direct to Keystone Range of actuators.
One-piece wafer-thin disc-stem provides high strength and absolutely positive disc control and gives the very minimum obstruction to flow. Its crevice free surface makes it ideal for hygienic duty.
Primary seal formed by the seat/shaft/hub contact exceeds the pressure rating of the valve. Body is totally isolated from the flowing medium.
Secondary shaft seal is suitable for pressure and vacuum is self adjusting.
Patented dove-tail seat requires no bonding. Makes seat replacement simple and fast. Extra heavy edge section resists tearing.
Hub seal is provided by preloaded contact between flatted seat surface and rounded polished disc-hub area for positive sealing at all disc positions.
Molded-in O-ring provides positive flange sealing and eliminates the need for gaskets.
Heavy duty top bushing absorbs side thrust loads. Self-adjusting sealing for both directions is also suitable for vacuum.
Jonloo Valves have been produced in China for many years and the company is recognized as the premier manufacturer of industrial valves. By leveraging advanced engineering capabilities and innovation, we have created quality assured valves to meet critical industrial needs.