This standard specifies the manufacturing and acceptance requirements for spiral finned tube boxes for waste heat boilers. This standard applies to flue-type waste heat boilers with rated steam pressure not greater than 3.82 MPa.
JB/T 6511-1992 history
2013NB/T 47031-2013 Specification of headers and module for spiral fin tubes
1992JB/T 6511-1992 Specification for installation of spiral fin tube and header
JB/T 6511-1992 Specification for installation of spiral fin tube and header was changed to NB/T 47031-2013 Specification of headers and module for spiral fin tubes.