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	直流式柱塞阀概述:
	主要直流式柱塞阀最大的优点是介质在内流动平衡转弯拐角少。直通式流线为梯形角式流线为角形而直流式流线为波浪形,根据对三种截止阀,流阻系数的测定DN100mm,直通式截止阀流阻系数为4.1 ,DN100mm角式截止阀流阻系数为3.8,而DN100mm直流式截止阀流阻系数为0.5,阻力大大降低。
	 
	直流式柱塞阀连接、结构尺寸:
| 
				 
					DN(mm)  | 
			
				 
					U45SM-16C、P、R               U45H-16C、P、R  | 
		|||||||||||||||
| 
				 
					15  | 
			
				 
					20  | 
			
				 
					25  | 
			
				 
					32  | 
			
				 
					40  | 
			
				 
					50  | 
			
				 
					65  | 
			
				 
					80  | 
			
				 
					100  | 
			
				 
					125  | 
			
				 
					150  | 
			
				 
					200  | 
			
				 
					250  | 
			
				 
					300  | 
			
				 
					350  | 
			
				 
					400  | 
		|
| 
				 
					L  | 
			
				 
					130  | 
			
				 
					150  | 
			
				 
					160  | 
			
				 
					180  | 
			
				 
					200  | 
			
				 
					230  | 
			
				 
					290  | 
			
				 
					310  | 
			
				 
					350  | 
			
				 
					400  | 
			
				 
					480  | 
			
				 
					600  | 
			
				 
					622  | 
			
				 
					698  | 
			
				 
					787  | 
			
				 
					914  | 
		
| 
				 
					H  | 
			
				 
					180  | 
			
				 
					200  | 
			
				 
					220  | 
			
				 
					260  | 
			
				 
					280  | 
			
				 
					310  | 
			
				 
					350  | 
			
				 
					390  | 
			
				 
					430  | 
			
				 
					460  | 
			
				 
					550  | 
			
				 
					650  | 
			
				 
					750  | 
			
				 
					860  | 
			
				 
					980  | 
			
				 
					1110  | 
		
| 
				 
					W  | 
			
				 
					100  | 
			
				 
					100  | 
			
				 
					120  | 
			
				 
					140  | 
			
				 
					160  | 
			
				 
					180  | 
			
				 
					200  | 
			
				 
					240  | 
			
				 
					270  | 
			
				 
					310  | 
			
				 
					340  | 
			
				 
					400  | 
			
				 
					520  | 
			
				 
					640  | 
			
				 
					760  | 
			
				 
					900  | 
		
| 
				 
					D  | 
			
				 
					95  | 
			
				 
					105  | 
			
				 
					115  | 
			
				 
					135  | 
			
				 
					145  | 
			
				 
					160  | 
			
				 
					180  | 
			
				 
					195  | 
			
				 
					215  | 
			
				 
					245  | 
			
				 
					280  | 
			
				 
					335  | 
			
				 
					405  | 
			
				 
					460  | 
			
				 
					520  | 
			
				 
					580  | 
		
| 
				 
					K  | 
			
				 
					65  | 
			
				 
					75  | 
			
				 
					85  | 
			
				 
					100  | 
			
				 
					110  | 
			
				 
					125  | 
			
				 
					145  | 
			
				 
					160  | 
			
				 
					180  | 
			
				 
					210  | 
			
				 
					240  | 
			
				 
					295  | 
			
				 
					355  | 
			
				 
					410  | 
			
				 
					470  | 
			
				 
					525  | 
		
| 
				 
					T  | 
			
				 
					12  | 
			
				 
					12  | 
			
				 
					12  | 
			
				 
					12  | 
			
				 
					13  | 
			
				 
					13  | 
			
				 
					12  | 
			
				 
					17  | 
			
				 
					17  | 
			
				 
					19  | 
			
				 
					21  | 
			
				 
					23  | 
			
				 
					27  | 
			
				 
					28  | 
			
				 
					30  | 
			
				 
					32  | 
		
| 
				 
					n-φ  | 
			
				 
					4-14  | 
			
				 
					4-14  | 
			
				 
					4-14  | 
			
				 
					4-18  | 
			
				 
					4-18  | 
			
				 
					4-18  | 
			
				 
					4-18  | 
			
				 
					8-18  | 
			
				 
					8-18  | 
			
				 
					8-18  | 
			
				 
					8-23  | 
			
				 
					12-23  | 
			
				 
					12-25  | 
			
				 
					12-25  | 
			
				 
					16-25  | 
			
				 
					16-30  | 
		
| 
				 
					DN(mm)  | 
			
				 
					U45SM-25C、P、R       U45H-25C、P、R  | 
		|||||||||||||||
| 
				 
					15  | 
			
				 
					20  | 
			
				 
					25  | 
			
				 
					32  | 
			
				 
					40  | 
			
				 
					50  | 
			
				 
					65  | 
			
				 
					80  | 
			
				 
					100  | 
			
				 
					125  | 
			
				 
					150  | 
			
				 
					200  | 
			
				 
					250  | 
			
				 
					300  | 
			
				 
					350  | 
			
				 
					400  | 
		|
| 
				 
					L  | 
			
				 
					130  | 
			
				 
					150  | 
			
				 
					160  | 
			
				 
					180  | 
			
				 
					200  | 
			
				 
					230  | 
			
				 
					290  | 
			
				 
					310  | 
			
				 
					350  | 
			
				 
					400  | 
			
				 
					480  | 
			
				 
					600  | 
			
				 
					622  | 
			
				 
					698  | 
			
				 
					787  | 
			
				 
					914  | 
		
| 
				 
					H  | 
			
				 
					180  | 
			
				 
					200  | 
			
				 
					220  | 
			
				 
					260  | 
			
				 
					280  | 
			
				 
					310  | 
			
				 
					350  | 
			
				 
					390  | 
			
				 
					430  | 
			
				 
					470  | 
			
				 
					550  | 
			
				 
					650  | 
			
				 
					750  | 
			
				 
					860  | 
			
				 
					990  | 
			
				 
					1110  | 
		
| 
				 
					W  | 
			
				 
					100  | 
			
				 
					100  | 
			
				 
					120  | 
			
				 
					140  | 
			
				 
					160  | 
			
				 
					180  | 
			
				 
					200  | 
			
				 
					240  | 
			
				 
					280  | 
			
				 
					310  | 
			
				 
					340  | 
			
				 
					400  | 
			
				 
					520  | 
			
				 
					640  | 
			
				 
					760  | 
			
				 
					900  | 
		
| 
				 
					D  | 
			
				 
					95  | 
			
				 
					105  | 
			
				 
					115  | 
			
				 
					135  | 
			
				 
					145  | 
			
				 
					160  | 
			
				 
					180  | 
			
				 
					195  | 
			
				 
					230  | 
			
				 
					270  | 
			
				 
					300  | 
			
				 
					360  | 
			
				 
					425  | 
			
				 
					485  | 
			
				 
					550  | 
			
				 
					610  | 
		
| 
				 
					K  | 
			
				 
					65  | 
			
				 
					75  | 
			
				 
					85  | 
			
				 
					100  | 
			
				 
					110  | 
			
				 
					125  | 
			
				 
					145  | 
			
				 
					160  | 
			
				 
					190  | 
			
				 
					220  | 
			
				 
					250  | 
			
				 
					310  | 
			
				 
					370  | 
			
				 
					430  | 
			
				 
					490  | 
			
				 
					550  | 
		
| 
				 
					T  | 
			
				 
					14  | 
			
				 
					14  | 
			
				 
					14  | 
			
				 
					15  | 
			
				 
					15  | 
			
				 
					17  | 
			
				 
					19  | 
			
				 
					19  | 
			
				 
					21  | 
			
				 
					25  | 
			
				 
					27  | 
			
				 
					31  | 
			
				 
					33  | 
			
				 
					36  | 
			
				 
					40  | 
			
				 
					44  | 
		
| 
				 
					n-φ  | 
			
				 
					4-14  | 
			
				 
					4-14  | 
			
				 
					4-14  | 
			
				 
					4-18  | 
			
				 
					4-18  | 
			
				 
					4-18  | 
			
				 
					4-18  | 
			
				 
					8-18  | 
			
				 
					8-23  | 
			
				 
					8-25  | 
			
				 
					8-25  | 
			
				 
					12-25  | 
			
				 
					12-30  | 
			
				 
					16-30  | 
			
				 
					16-34  | 
			
				 16-34  | 
		
