Pacific® Pressure Seal Forged Valves



Combined Cycle Power Plant

Increasing cyclic conditions (on/off and load following) in today’s combined cycle power plants are
quickly increasing the demand, and the stress, being placed upon the equipment – particularly high
pressure valves.

Market conditions demand faster online times, increasing the severity of gas
turbine starts. This in turn increases the thermal transients, with higher gas turbine
acceleration and higher gas flows, at increased temperatures, feeding the heat
recovery steam generator. Every time the plant is turned on, then turned off, the gas
turbine, HRSG unit, steam lines, steam turbines, and auxiliary components undergo
drastic thermal and pressure stress. This can quickly damage the equipment, and
dramatically accelerates the wear and tear on valves.

Pacific Forged Pressure Seal Valves were designed specifically to meet these
requirements. In fact, they were specifically designed to last in the worst cyclic
conditions of today’s, and tomorrow’s, thermal power applications. This is one piece
of equipment that you don’t have to worry about – Pacific-Forged valves are peace
of mind.”

Key Applications

  • Drums (HP, IP, LP)
  • Superheater (HP, IP, LP)
  • Reheater
  • Steam Turbine
  • Feed Water Distribution
  • Economizers (HP, LP, IP)

Coal Plant

Coal-fired power plant efficiency is a strong function of steam temperature and pressure. Research to increase both temperature and pressure constantly evolving in an effort to generate more power from the same, or less, inputs of coal. This in turn has increased the demand for stronger, more suitable high temperature materials.

When designing and procuring equipment for Supercritical (SC)/Ultra Supercritical (USC) coal-fired power plants, a crucial factor to consider is the effects they will have towards improving overall plant efficiency, and can they handle the increased demands being placed upon them. Higher pressures and temperatures, up to class 4500 and 1050°F or more, have a tangible effect on steam lines and critical high pressure valves in particular.

Achieving super-high temperatures and pressures means special consideration to valve designs that can withstand the pressures and temperatures of a SC or USC power plant. Pacific Forged Pressure Seal Valves have been the choice for these applications for decades. Our customers know that Pacific Valves are designed for these plant’s most critical applications, and our reputation is unsurpassed when it comes to reliable and consistent manufacturing quality.

Key Forged Applications

  • Drums
  • Superheater
  • Reheater
  • Steam Turbine
  • Feed Water Distribution
  • High Pressure Heater
  • Economizers

Copyright © 2020 Crane Co. All Rights Reserved.