Triple-offset Butterfly Valve
                            
                            设计标准:
                            Basic standard:	API 609, ASME B16.34;
Flange connection dimesion:	ASME B16.5
                
             
            
            
            	
                
                	ASME B16.34 Casted Y-pattern strainer,BC
                            
                            设计标准:
                            Basic standard:	ASME B16.34;
Flange connection dimesion:	ASME B16.5, ASME B16.47,
                
             
            
            
            	
                
                	ASME B16.34 Basket strainer
                            
                            设计标准:
                            Basic standard:	ASME B16.34;
Flange connection dimesion:	ASME B16.5, ASME B16.47,