DistrictCoolingTheoryandPractice
Districtcoolingguide-ASHRAE(2013)
Districtcoolingguide-ASHRAE2013
BSEN1983-2006工业用阀–钢制球阀Industrialvalvessteelballvalve
BSEN19-2002工业阀门.通用标记Industrialvalves.Markingofmetallicvalves
BSEN12569-1999Industrialvalves–Valvesforchemicalandpetrochemicalprocessindustry–Requirementsandtests
BSEN12351-1999工业阀门带法兰连接的阀门保护帽Industrialvalves.Protectivecapsforvalveswithflangedconnections
BSEN1171-2002industrialvalves-castirongatevalves
BSEN1092-2-1997Flangesandtheirjoints.CircularflangesforpipesvalvesfittingsandaccessoriesPNdesignated.Castironflanges
BSEN1092-1-2007Flangesandtheirjoints–CircularflangesforpipesvalvesfittingsandaccessoriesPNdesignated–Part1Steelflanges