For blowdown tank sizing - I use Canadian Code CSA B51-09 Boiler Pressure vessel and pressure piping code.
Table 1 defines the design pressure for blowoff vessel
Max boiler pressure 15-300 psi use 30% of max boiler pressure but shall be at least 15 psi
Over 300 psi max boiler pressure use...
I am installing a new boiler. 35,000 pph x 150 psig saturated steam d-type. The boiler has an economizer that is isolable ie we can bypass it with 3 valves and it has its own safety valve.
I usually see feedwater stop and check valves upstream of economizer. However when I got the P&ID in from...
