Emerson recently debuted the Fisher V280 full-bore trunnion-mounted ball control valve for severe and specialty pressure, flow and process control applications. The valve provides dynamic process control by utilizing a robust drive train unique to the market that is designed to guide the shaft and properly absorb energy.
The valve comes standard as a single-seal construction but is available with optional dual-seal construction, allowing bi-directional flow and double block-and-bleed operation. The V280 is a fully rated ANSI class 900 valve, available in 6”, 8”, 10”, 12” and 16” sizes. A variety of high-performance packing materials are available, including ENVIRO-SEAL live-loaded packing.
The body connections have been reengineered to significantly simplify the design and reduce the number of parts, while utilizing the same construction for the inlet and outlet. This allows an easy retrofit of single or dual ball seals with standard or customized noise attenuating aerodomes or anti-cavitation hydrodomes on the inlet, outlet or both. Typical applications include midstream oil and gas, particularly compressor anti-surge service.
The standard offering V280 complies with the NACE MR0175/ISO 15156 Sour Service/Sour Crude oil standard, carries the full ASME B16.5 Class 900 flange rating, and can handle fluid temperature ranges from -20 to 180F. Alternate seal options can handle temperatures from -50 to 400F. The valve can be fitted with a number of different positioners or auxiliary devices to suit hazardous or challenging environments.
Image credit: Emerson