Boiler house valves: what goes on boilers, pumps and headers
Boiler houses are among the most common valve orders. The item list repeats from project to project, and nothing should be missed.
TAZ Engineering Team · · 6 min
Boilers
Each boiler gets isolation valves on the inlet and outlet for maintenance: gate valves or ball valves depending on size. Steam plants use steel globe valves and gate valves on steam lines and check valves on feed lines.
Pumps
Network, make-up and recirculation pumps follow the standard arrangement: gate valve on suction, check valve and gate valve on discharge. Ball valves and butterfly valves suit frequent switching.
Make-up and water treatment
Water treatment uses smaller valves, often in corrosion-resistant materials. Do not use uncoated cast iron with aggressive chemical solutions.
Putting the order together
Send the project schedule or the process diagram and TAZ will build the full list of gate, globe, check and butterfly valves with mating flanges and bolting so the installers get everything in one package.
Checklist
- hot water or steam
- process diagram
- boiler ratings
- pump groups
- water treatment
- mating flanges and bolting