Valves for thermal and CHP power plants: steam, feedwater, cooling
A power plant has valves on every circuit, from high-energy steam to cooling water. Each circuit has its own materials, pressure classes and tightness requirements.
TAZ Engineering Team · · 6 min
Steam and feedwater
High pressures and temperatures call for steel valves in creep-resistant grades, often with butt-weld ends: gate valves, globe valves and check valves. This is a separate product class with strict material and weld inspection requirements.
Circulating and service water
Condenser cooling circuits, cooling towers and pump houses mean large diameters at moderate pressure. Butterfly valves, gate valves and check valves in cast iron and steel are used here.
District heating water at CHP plants
Heating water heaters and network pumps at CHP plants use steel gate valves and ball valves rated up to 150 °C, similar to district heating networks but at greater scale and criticality.
What matters
Material certificates, test records and matching face-to-face length with installed valves. TAZ supplies valves for auxiliary circuits and for heating and service water; for high-energy steam, ask about capability for the specific conditions.
Checklist
- circuit and medium
- pressure and temperature
- body material
- weld or flanged ends
- face-to-face length
- test records