德标闸阀|德标闸阀厂家|上海德标闸阀闸阀的种类,按密封面配置可分为楔式闸板式闸阀和平行闸板式闸阀,楔式闸板式闸阀又可分为:单闸板式、双闸板式和弹性闸板式；平行闸板式闸阀可分为单闸板式和双闸板式。按阀杆的螺纹位置划分，可分为明杆闸阀和暗杆闸阀两种。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。德标标闸阀PN1.0级主要尺寸和重量SizeMainDimensionsandWeightDNmminLDD1D2bn-φdHD0W(kg)502178155120100164-19409200246521/2190175140120184-1953525031803203185150130188-19570250401004229210175155188-19590250551506267280240215228-236303009020082923302902652212-23960350145250103304003553252415-251158400230300123564504003702416-251378450330350143814904454152616-251543500460400164065605104752816-271738600600450184326205655303020-271959600980500204576756205853020-272214680960PN1.6级主要尺寸和重量SizeMainDimensionsandWeight502216155120100188-19480200326521/2241175140120208-1951025039803283200160135228-23580280551004305225185160248-237003508015064033052602302812-2594040016020084193503052753012-251190450250250104574303803453412-271390500370300125024804303953516-271600500560350147625404804404016-331750600870400168386055404954616-3319006001150450189146756055604820-3323206501270上海维旺迪阀门有限公司：http:///products/01/ml上海维旺迪阀门：http:///product/fangzhen/2011-05-11/ml)