Provide necessary control for continuous boiler or turbine blowdown and bottom blow-off service.
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Ideal for use in the Power (including Nuclear), Pulp & Paper, Chemical, Petrochemical and Refining Industries. The ability to be utilized in many industrial applications is due to the reliability of the Clampseal’s pressure seal bonnet design and flexibility of component interchangability and easy service.
The side-entry ball valve is the most common and popular design. Given its great modularity, SRi can manufacture any side-entry ball valves with special options. In case of maintenance operation, all parts of the valve can be replaced, so valve lifetime is extended.
This single piece construction also provides a rigid assembly when pinned to the disc via means of shaft pins (peened over and locked). This prevents excessive disc deflections, which maintains a constant disc/seal contact stress ensuring a bi-directional sealing valve at both low and high pressures. The valve has a double offset design providing a camming action. This eliminates excessive wear between the seat and disc-sealing interface both during the opening and closing strokes extending the sealing life of the valve. Maintenance of the valve is quick and relatively simple. The PTFE insert, seat gasket and secondary seat can be replaced by simply unbolting the retaining ring and assembling the new parts without removing any other parts. Gland packing is simply adjusted by tightening gland nuts, which are easily accessible between the mounting legs without having to remove the adapter plate or actuator.