Valve Plug Stability— Rugged cage guiding provides increased valve plug stability, which reduces vibration and mechanical noise.
Full Pressure Drop Capability—Rugged HP and HPA valves have readily available trims capable of attaining full pressure drops.
Spiral-Wound Gaskets for Excellent Sealing Under All Service Conditions—Premium materials are used in the construction of spiral-wound gaskets for HP Series valves. These premium materials, which make up the standard spiral-wound gaskets, are N06600 (alloy 600)/graphite or N07750 (alloy X750)/graphite.
Compliance with the Clean Air Act—Optional ENVIRO-SEAL™ packing systems provide an improved stem seal to help prevent the loss of valuable or hazardous process fluid. The ENVIRO-SEAL packing systems feature PTFE or graphite ULF.
Piping Economy—The availability of expanded end connections on NPS 4 and 6 HP valves may eliminate the need for line swages while accommodating oversized piping arrangements.
Quick Change Trim—Maintenance is simple and can easily be performed using common tools. Trim components can be quickly removed and changed with no need for special tools.
Standard Hard Trim Materials—The cage, valve plug, and other trim parts are manufactured from hardened materials. This standard feature provides excellent wear resistance.
Control of Low Flow Rates/Tight Shutoff—Micro-Flute and Micro-Form valve plugs provide superb rangeability in high-pressure, low-flow applications, while maintaining tight shutoff. A choice of several restricted port diameters helps to match valve body capacity to required flow, to provide necessary control with full travel, and to prevent throttling near the seat. 