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	Customized Triple Offset Flange Butterfly Valve From Our Factory with High Quality in China
1.General information about Triple Offset Flange Butterfly Valve 
	The valve stem axis deviates from the disc center and body center at the same time, and the valve seat rotation axis has a certain angle with the valve body channel axis, which is called triple offset butterfly valve.
The traditional hard seal butterfly valve can't be completely leak free, and the leakage is large. In order to change this situation, the hard seal butterfly valve has been reformed many times, and triple offset flange butterfly valve was born.
	
 
	    
 
	
2. Structure of Triple Offset Flange Butterfly Valve
Triple offset of the triple offset flange butterfly valve
	
	
	
 
	
	
 
3.Technical date of Triple Offset Flange Butterfly Valve
	
	 
	
		
			
 
				 
			
					Type of Valve  
				
				
					Triple Offset Flange Butterfly Valve 
			
				
				 
			
					DN(mm) 
				
				
					DN80~DN2200 
			
				
				 
			
					PN(MPa) 
				
				
					1.0~1.6 
			
				
				 
			
					Design Temperature Range 
				
				
					-253℃~815℃ 
			
				
				 
			
					Applicable Medium 
				
				
					Fresh water, Sewage, seawater, Oil and gas etc 
			
				
				 
			
					Connection type: 
				
				
					Flang 
			
				
				 
			
					Actuator type 
				
				
					Manual drive, Pneumatic,Hydraulic or electric Actuator 
			
				
				 
		
	
					Sealing 
				
				
					Metal Hard Seal, Soft seal 
			
				
	
 
4. Material of Triple Offset Flange Butterfly Valve
	
 
	 
	
		
			
				 
			
					No 
				
				
					PART NAME 
				
				
					MATERIAL 
			
				
				 
			
					1
				 
				
					Body 
				
				
					WCB 
			
				
				 
			
					2
				 
				
					Stem 
				
				
					2Cr13 
			
				
				 
			
					3
				 
				
					Seat 
				
				
					SS304 
			
				
				 
			
					4
				 
				
					Seal Ring 
				
				
					SS304+Granphite 
			
				
				 
			
					5
				 
				
					Retainer 
				
				
					Q235 
			
				
				 
			
					6
				 
				
					Disc 
				
				
					WCB 
			
				
				 
			
					7
				 
				
					Bushing 
				
				
					Self-lubricating 
			
				
				 
			
					8
				 
				
					Yoke 
				
				
					WCB 
			
				
				 
		
	
					9
				 
				
					Gland 
				
				
					WCB 
			
				
5.Advantage of Triple Offset Flange Butterfly Valve
 
	
 
	1) Good sealing performance improves the reliability of the system;
2) The friction resistance is small, the opening and closing is labor-saving and flexible;
3) It has long service life and can switch repeatedly;
4) Strong pressure and high temperature resistance, wide range of applications.
5) Double flow direction can bear pressure, installation without flow direction limit
6) More widely used
	
6. Application of Triple Offset Flange Butterfly Valve
	
 
Triple offset flange butterfly valve is widely used in metallurgical, electric power, petrochemical, water supply and drainage, municipal construction and other industrial pipelines with medium temperature ≤ 425 ℃ to regulate flow and cut off fluid.
	
 
	
 
	7.About Tianjin Milestone Pumu & Valve Co., Ltd.
 
	
 
	
8.Welcome to c ontact us
	Delia@milestonevalve.com
Cell: +86 13400234217
	
 
9. FAQ