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简要说明:
浮动式球阀的球、阀杆、手柄是一个装配单元,阀杆头部采用扁方结构,由手柄所处位置容易辨别出是阀门处于开位置或关位置。当手柄或阀杆头部的扁方与管线平行时,阀门处于全开位置;当手柄或阀杆头部的扁方与管线垂直时.阀门处于全关位置。
为防止阀门开关受到误动作以及不可预知的线路振动而产生的不应有的开关动作,在阀门的全开和全关位置设有锁定孔,并可用挂锁锁定阀门.特别是安装在野外的阀门或在可燃性介质的石油类和化学药品的生产线或当工艺流程中不允许开或关阀门时.为防止其他人员错误操作阀门,该锁定装置就会体现出其独特的优越性.
当介质通过阀门时,阀体中腔的压力可能将阀杆推出。为防止这种情况发生,在援杆下部设置一防飞出结构(图1)0这样,即使火灾时填料、止推轴承被烧掼或其它原因引起填料等损坏.阀体内的介质压力将使阀扦法兰与阀体上密封面紧密接触,防止介质大量从损坏的填料部位处泄漏。
软密封球阀设计了防静电装置(图2)和防火结构(图3)。当发生火灾时,一旦阀座被烧掼,球体将直接和阀体上的金属面接触,从而阻止介质大量从烧损的阀座处泄漏。
多年的球阀制造经验与国外先进技术的结合而设计的双线密封(图4),可自然泄压阀座(图5),能保证寿、低压及真空状态下的完全密封。
浮动式球阀的阀门流量孔径与管线内径一致(客户要求时可为缩径),以便管线清扫(图6)。
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WFZ矿浆阀 http://www.wfvalve.com/cpzs/cffm5_221.html
PZ41H型排渣闸阀http://www.wfvalve.com/cpzs/cffm5_197.html
PZ73HF手动刀形闸阀http://www.wfvalve.com/cpzs/cffm5_194.html
NKZ41H真空闸阀http://www.wfvalve.com/cpzs/cffm5_193.html
手动ZSK型矿浆阀http://www.wfvalve.com/cpzs/cffm5_220.html
暗杆带盖刀型闸阀http://www.wfvalve.com/cpzs/cffm5_219.html
螺旋阀门http://www.wfvalve.com/cpzs/cffm5_218.html
Z43平板闸阀http://www.wfvalve.com/cpzs/cffm5_217.html
ANSI标准闸阀http://www.wfvalve.com/cpzs/cffm5_216.html
API标准闸阀http://www.wfvalve.com/cpzs/cffm5_215.html
Z41H碳钢闸阀http://www.wfvalve.com/cpzs/cffm5_214.html
Z11YZ41Y锻钢闸阀http://www.wfvalve.com/cpzs/cffm5_213.html
Z41CY陶瓷闸阀http://www.wfvalve.com/cpzs/cffm5_212.html
Z45X、Z41X消防专用信号闸阀http://www.wfvalve.com/cpzs/cffm5_211.html
DSZ44H、DSZ64H水封闸阀http://www.wfvalve.com/cpzs/cffm5_210.html
Z41T-10明杆楔式闸阀http://www.wfvalve.com/cpzs/cffm5_209.html
Z45T-10暗杆楔式闸阀http://www.wfvalve.com/cpzs/cffm5_208.html
Z15T-10内螺纹暗杆楔式闸阀http://www.wfvalve.com/cpzs/cffm5_207.html
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电动平板闸阀防爆型http://www.wfvalve.com/cpzs/cffm5_205.html
手动平板闸阀http://www.wfvalve.com/cpzs/cffm5_204.html
内螺纹丝口闸阀http://www.wfvalve.com/cpzs/cffm5_203.html
低温闸阀http://www.wfvalve.com/cpzs/cffm5_202.html
Z641气动闸阀http://www.wfvalve.com/cpzs/cffm5_201.html
Z940、Z941电动闸阀http://www.wfvalve.com/cpzs/cffm5_200.html
球形闸阀http://www.wfvalve.com/cpzs/cffm5_199.html
PZ641H气动钢制排渣闸阀http://www.wfvalve.com/cpzs/cffm5_196.html
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Z641H气动闸阀http://www.wfvalve.com/cpzs/cffm5_191.html
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Z641H气动闸阀http://www.wfvalve.com/cpzs/cffm5_189.html
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Z43W平板闸阀http://www.wfvalve.com/cpzs/cffm5_186.html
CYZ40H油密封差压闸阀http://www.wfvalve.com/cpzs/cffm5_185.html
PZ73XHY刀型闸阀http://www.wfvalve.com/cpzs/cffm5_184.htm
RVCXZ45X暗杆弹性座封闸阀http://www.wfvalve.com/cpzs/cffm5_180.html
Z41T-10低压铸铁闸阀http://www.wfvalve.com/cpzs/cffm5_178.html
Z941T-10电动闸阀http://www.wfvalve.com/cpzs/cffm5_176.html
陶瓷刀型闸阀http://www.wfvalve.com/cpzs/cffm5_175.html
伞齿轮刀型闸阀http://www.wfvalve.com/cpzs/cffm5_174.html
链轮刀型闸阀http://www.wfvalve.com/cpzs/cffm5_173.html
气动刀型闸阀http://www.wfvalve.com/cpzs/cffm5_172.html
电动刀型闸阀http://www.wfvalve.com/cpzs/cffm5_171.html
手动刀型闸阀http://www.wfvalve.com/cpzs/cffm5_170.html
气动闸阀http://www.wfvalve.com/cpzs/cffm5_169.html
不锈钢丝扣闸阀http://www.wfvalve.com/cpzs/cffm5_168.html
高温高压电站闸阀http://www.wfvalve.com/cpzs/cffm5_167.html
高压对焊闸阀http://www.wfvalve.com/cpzs/cffm5_166.html
电动陶瓷楔式闸阀http://www.wfvalve.com/cpzs/cffm5_165.html
耐磨陶瓷闸阀http://www.wfvalve.com/cpzs/cffm5_164.html