Piston valve PPV

manualflow controlfor gas

The Pennant Piston Valve (PPV) is a linear movement valve in which a stainless-steel piston travels between the upper and lower seal ring. These rings are separated by a lantern bushing, which supports the piston and creates a bubble tight seal. When the valve is in the open position, the upper seal ring in conjunction with the piston prevents leakage through the stem. In the closed position, the lower seal ring seals the valve – passage and provides a tight shutoff. Known for their extraordinary performance and long life, Piston Valves can handle a variety of media such as steam, thermal fluid, condensate and many other liquids and gasses. They can be used in on/off and throttling applications. FEATURES Bubble tight (ANSI leakage class VI) shutoff Can be used for throttling applications Piston valve is robust and maintenance free Long service life Effective sealing area is large, as compared to the conventional linear movement valves Compensates for thermal expansions with reinforced Grafoil sealing rings and Belleville washers Can be easily serviced inline Easy to repair: The only wearing parts are sealing rings which are easily replaceable Low cost of ownership (Cost of ownership includes maintenance, inventory cost in addition to the purchase cost) RANGE OF PISTON VALVES Pennant Piston Valves are available in wide variety of Pressure class as below:- Cast Steel Construction :- #150, #300 as per ASME B16.34 PN40 as per BSEN 1092-1 Forged Steel Construction : – #800 as per ASME B16.34