用规定的扭矩，交叉锁紧法兰连接螺栓。 用规定的扭矩，锁紧阀杆螺母。
安装执行机构后，输入相应的信号通过旋转阀杆带动阀芯旋转，使阀门至打开和关闭位置。
如有可能，请在回装管道前，按相关标准对阀进行压力密封测试和性能测试。 球阀制造与标准
标准编号标准中文名称标准英文名称 SY/T5835-93压裂用井口球阀
GB/T12237-1989通用阀门法兰和对焊连接钢制球阀
Generalpurposeindustrialvalves--Flangedandbutt-weldendsteelballvalves GB/T15185-1994铁制和铜制球阀Castironandcopperalloyballvalves JB/T7745-1995管线球阀
JB/T53167-1999球阀产品质量分等
JC/T783-2004玻璃纤维增强改性酚醛塑料球阀 JB/T8861-2004球阀静压寿命试验规程
NFE29-350-2003工业用阀.钢制球阀、球状截止阀和止回阀(Industrialvalves-Steelglobeandglobestopandcheckvalves.) NFE29-466-1987工业阀门.旋转阀.黄铜球阀.规范
(INDUSTRIALVALVES.BRASSBALL-VALVES.SPECIFICATIONS.) NFE29-354-2003工业用阀.铸铁球阀(Industrialvalves-Castironglobevalves.)
NFE29-465-1986工业阀门.旋转阀.铜铝球阀.规范
(INDUSTRIALVALVES.CUPRO-ALUMINIUMBALLVALVES.SPECIFICATION.)
NFD36-406-2004建筑物用阀.建筑物内饮用水给水用手动铜合金和不锈钢球阀.试验和要求
(Buildingvalves-Manuallyoperatedcopperalloyandstainlesssteelballvalvesforpotablewatersupplyinbuildings-Testsandrequirements.)
NFE29-335-2003石油和天然气工业用尺寸为DN100及更小的钢闸阀、球阀和止回阀
(Steelgate,globeandcheckvalvesforsizesDN100andsmaller,forthepetroleumandnaturalgasindustries.)
NFE29-139-1998建筑物气体装置用手工操作球阀和死底锥形旋塞(Manuallyoperatedballvalvesandclosedbottomtaperplugvalvesforgasinstallationsforbuildings.)
ANSI/ASSE1002-1979厕所冲水箱球阀(WaterClosetFlushTankBallCocks) ANSI/API608-2002对焊和法兰端金属球阀(MetalBallValves-FlangedandButt-WeldingEnds)
BSEN13709-2003工业用阀.钢制球阀、球状截止阀和止回阀(Industrialvalves-Steelglobeandglobestopandcheckvalves) BSEN13789-2003工业用阀.铸铁球阀(Industrialvalves-Castironglobevalves)
BSENISO15761-2003石油和天然气工业用尺寸为DN100及更小的钢闸阀、球阀和止回阀
(Steelgate,globeandcheckvalvesforsizesDN100andsmaller,forthepetroleumandnaturalgasindustries)
BSEN13828-2003建筑物用阀.建筑物内饮用水供给用手动铜合金及不锈钢球阀.试验及要求
(Buildingvalves-Manuallyoperatedcopperalloyandstainlesssteelballvalvesforpotablewatersupplyinbuildings-Testsandrequirements)
BSEN331-1998建筑物燃气供应设备用人工操纵球阀和封底锥度旋塞阀
(Manuallyoperatedballvalvesandclosedbottomtaperplugvalvesforgasinstallationsinbuildings)
EN331-1998建筑物燃气设备用人工操纵球阀和封闭底锥形旋塞阀Manuallyoperatedballvalvesandclosedbottomtaperplugvalvesforgasinstallationsforbuildings
prENISO17292-2002石油、石油化工及相关工业用金属球阀Metalballvalvesforpetroleum,petrochemicalandalliedindustries(ISO/DIS17292:2002)/Note:Endorsementnotice
prENISO21787-2001工业阀门 热塑塑料制球阀
Industrialvalves-Globevalvesofthermoplasticmaterials(ISO/DIS21787:2001)
prENISO16135-2001工业用阀门 热塑性材料制球阀
Industrialvalves-Ballvalvesofthermoplasticmaterials(ISO/DIS16135:2001)