Generally speaking, China

We have two shell and tube heat exchangers that were just put into service in the last month. They are for process and make-up air heating with 45 psig steam in the shell and 40% propylene glycol thro

Depending on the unit you are working on, service valves vary and will be different. Figure 26-1 shows some different service valves.

Steam trap blu-ray to dvdfailure rate is between 20 and 60 percent. There are three common methods for checking traps, but only two of them rip blue-ray are reliable, and even these two methods cannot

1, (Table 1) in 1 ~ 4 is to use the logo, for DN