Rising Stem Ball Valve

Rising Stem Ball Valve

Rising Stem Ball Valve has a unique, highly-reliable valve with positive shut-off and repeated re-sealing capability. The key to the success of the valve is the rising stem that retracts the ball from its seat before turning, so that the seat is protected from wear and degradation from the rotation.

key features of Rising Stem Ball Valve are: (1)multiple sizes and pressure ratings; (2)raised face flange; (3)-155 deg F to 800 deg F (-104 deg C to 427 deg C) operating temperatures; (4)applications include hot oil systems, mole sieve dryers and equipment isolation; (5)unique design mechanically energizes seal by cam action; (6)single-seat design; (7)bi-directional sealing with zero leakage; (8)injectable packing ; (9)self-cleaning ; (10)in-line repairable.

An extensive range of full and reduced bore ball valves serving a wide spectrum of applications in the chemical, pharmaceutical, oil, petrochemical and allied process industries. Available as lined, flanged, wafer and screwed/welded, metal or soft seated incorporating either floating or trunnion mounted designs for shut-off or control. Ball valves shall have female NPT type fittings and shall be 1/2-inch to 2-inch (15 mm to 50-mm) line and ball sizes. The valves shall have a forged brass body, nickel-plated brass ball, and reinforced EPDM O-ring seals. Valves may contain a glass-filled polymer flow optimizer to provide a modified equal percentage control characteristic. This flow optimizer should be an integral part of the ball assembly. Ball valves shall utilize a 90-degree rotation for control. They shall provide automated flow control of hot or chilled water and up to 50% glycol solution for HVAC control applications.