Flowserve Edward 4" Class 2900 Special Angle Blowdown Valve with V1-1S Gear Actuator

The Flowserve Edward 4" Class 2900 Special Angle Blowdown Valve is a high-pressure, forged alloy steel valve designed for demanding applications in power generation, petrochemical, and industrial processes where reliable isolation and blowdown of high-temperature, high-pressure fluids are critical. Featuring a Y-pattern angle body for reduced pressure drop and efficient flow, it is constructed from ASTM A217 Grade WC9 material, offering excellent resistance to thermal stress and corrosion in harsh environments. The valve includes integral hard-faced (INT-HF) disk and seat for enhanced durability and leak-tight performance under extreme conditions. Paired with the V1-1S gear actuator (7:1 ratio per provided description, though plate indicates potential variant), it provides manual operation via a handwheel for precise control, with a torque advantage for high-pressure shutoff. Benefits include superior strength in superheated steam or erosive services, long service life, and compliance with ASME B16.34 standards. Drawbacks may include higher weight and cost compared to standard globe valves, and the need for specialized maintenance. This model excels over competitors like Velan or Crane in high-cycle, high-delta-P scenarios due to its robust forging and optimized flow path, reducing erosion and extending operational intervals. Manufactured in 2015, this used unit shows minor wear but remains functional for secondary market resale.