Z41H/W中、低压法兰楔式闸阀
产品工作原理和用途:Z41H法兰楔式闸阀关闭时,密封面可以只依靠介质压力来密封,即依靠介质压力将闸板的密封面压向另一侧的阀座来保证密封面的密封,这就是自密封。大部分闸阀是采用强制密封的,即阀门关闭时,要依靠外力强行将闸板压向阀座,以保证密封面的密封性。Z41H法兰楔式闸阀的闸板随阀杆一起作直线运动的,叫升降杆闸阀(亦叫明杆闸阀)。通常在升降杆上有梯形螺纹,通过阀门顶端的螺母以及阀体上的导槽,将旋转运动变为直线运动,也就是将操作转矩变为操作推力。开启阀门时,当闸板提升高度等于阀门通径的1:1倍时,流体的通道完全畅通,但在运行时,此位置是无法监视的。实际使用时,是以阀杆的顶点作为标志,即开不动的位置,作为它的全开位置。为考虑温度变化出现锁死现象,通常在开到顶点位置上,再倒回1/2-1圈,作为全开阀门的位置。因此,阀门的全开位置,按闸板的位置(即行程>来确定。有的闸阀,阀杆螺母设在闸板上,手轮转动带动阀杆转动,而使闸板提升,这种阀门叫做旋转杆闸阀或叫暗杆闸阀。适用于石油化工,火力发电厂等油品、水蒸气管路上作接通或截断管路中介质的启闭装置。产品结构特点:1、结构紧凑、设计合理、阀门刚性好、通道流畅,流量系数小。2、密封面采用不锈钢和硬质合金,使用寿命长。3、采用柔性石墨填料、密封可靠,操作轻便灵活。4、驱动方式为手动、气动、电动、齿轮传动。5、结构形式为弹性楔式单闸板、刚性楔式单闸板双闸板型式。产品性能参数:型号公称压力(MPa)实验压力工作温度(℃)适用介质强度水(MPa)密封(水)空气(MPa)低压密封空气(MPa)Z41H-16CZ41W-16P(R)1.62.41.80.6≤425硝酸类Z41W-25P(R)2.53.82.80.6≤200醋酸类Z41W-40P(R)4.06.04.40.6≤200硝酸类Z41W-64P(R)6.49.67.00.6≤200醋酸类产品主要零件材料:阀体/阀盖ZGICr18Ni9TiZG00Cr18Ni10ZG1Cr18Ni12M02TiZG00Cr17Ni14M02WCB零件名称ZGICr18Ni9Tit系列ZG00Cr18Ni10系列ZG1Cr18Ni12M02Ti系列ZG00Cr17Ni14M02系列WCB系列闸板ZGICr18Ni9TiZG00Cr18Ni10ZG1Cr18Ni12M02TiZG00Cr17Ni14M021Cr13阀杆1Cr18Ni9Ti00Cr18Ni101Cr18Ni12M02Ti00Cr17Ni14M021Cr13填料PTFE编织PTFE编织PTFE编织PTFE编织石墨垫片304L+PTFE304L+PTFE316+PTFE316L+PTFE石墨压盖ZGICr18Ni9TiZG00Cr18Ni10ZG1Cr18Ni12M02TiZG00Cr17Ni14M02系列WCB填料压环1Cr18Ni9Ti00Cr18Ni101Cr18Ni12M02Ti00Cr17Ni14M021Cr13螺栓1Cr17Ni21Cr17Ni21Cr17Ni21Cr17Ni235CrMoA螺母1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni9Ti1Cr18Ni9Ti45主要外形尺寸:1.6MPa尺寸DN1520253240506580100125150200250300350400450500600Lmm130150160180200250265280300325350400450500550600650700800Hmm1751802102103503583734355006146748181225141516301780205021812599Wmm1801802002002002402402803203603604004505005006007207207202.5MPa尺寸DN1520253240506580100125150200250300350400450500600Lmm130150160180200250265280300325350400450500550600650700800Hmm1751802102103503583734355006146748181225141516301780205021812599Wmm1801802002002002402402803203603604004505005006007207207204.0MPa尺寸DN1520253240506580100125150200250300350400Lmm130150160180200250280310350400450550650750850950Hmm1751802102103503583734355006146748181225141516301780Wmm1801802002002002402402803203603604004505005006006.4MPa尺寸DN1520253240506580100125150200250300350400Lmm170190210230240250280320350400450550650750850950Hmm175180210230350359373435500614674818970114512801450Wmm12012014016020024028032036040040045056064080080010.0MPa尺寸DN1520253240506580100125150200250Lmm170190210230240250280310350400450550650Hmm175180210230350359373435500614674818970Wmm12012016018024028032036040045056064072016.0MPa尺寸DN1520253240506580100125150200Lmm170190210230240300340390450525600750Hmm175180210230350359373435500614674818Wmm120120140160200240280320360400400450)
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