This standard specifies the classification of tapered threaded tapered joints of tapered sealing hose assemblies. This standard applies to tapered threaded tapered joints of tapered sealing hose assemblies with oil and water as media. This standard is used in conjunction with the cone sealing hose assembly.
JB/T 6144.4-1992 history
2007JB/T 6144.4-2007 Rubber hose assembly with sealing cone-Cone coupling with NPT-type pipe threads