Product Introduction
【Product use】
DH44Y type 150(Lb)~600(Lb) low temperature swing check valve is suitable for pipelines with one-way flow of media to prevent the return of media to prevent accidents.
Main shape and connection size
| 
			 Nominal diameter  | 
			
			 Size  | 
		||||||||
| 
			 mm  | 
			
			 in  | 
			
			 L  | 
			
			 D  | 
			
			 D1  | 
			
			 D2  | 
			
			 b  | 
			
			 f  | 
			
			 n-Φd  | 
			
			 H  | 
		
| 
			 DH44Y-150Lb  | 
		|||||||||
| 
			 50  | 
			
			 2  | 
			
			 203  | 
			
			 152  | 
			
			 120.5  | 
			
			 92  | 
			
			 16  | 
			
			 1.6  | 
			
			 4-19  | 
			
			 180  | 
		
| 
			 80  | 
			
			 3  | 
			
			 241  | 
			
			 192  | 
			
			 152.5  | 
			
			 127  | 
			
			 19  | 
			
			 1.6  | 
			
			 4-19  | 
			
			 190  | 
		
| 
			 100  | 
			
			 4  | 
			
			 297  | 
			
			 229  | 
			
			 190.5  | 
			
			 157  | 
			
			 24  | 
			
			 1.6  | 
			
			 8-19  | 
			
			 203  | 
		
| 
			 125  | 
			
			 5  | 
			
			 330  | 
			
			 254  | 
			
			 216  | 
			
			 186  | 
			
			 24  | 
			
			 1.6  | 
			
			 8-22  | 
			
			 229  | 
		
| 
			 150  | 
			
			 6  | 
			
			 356  | 
			
			 279  | 
			
			 241.5  | 
			
			 216  | 
			
			 26  | 
			
			 1.6  | 
			
			 8-22  | 
			
			 257  | 
		
| 
			 200  | 
			
			 8  | 
			
			 495  | 
			
			 342  | 
			
			 298.5  | 
			
			 270  | 
			
			 29  | 
			
			 1.6  | 
			
			 8-22  | 
			
			 292  | 
		
| 
			 250  | 
			
			 10  | 
			
			 622  | 
			
			 406  | 
			
			 362  | 
			
			 324  | 
			
			 31  | 
			
			 1.6  | 
			
			 12-25  | 
			
			 355  | 
		
| 
			 300  | 
			
			 12  | 
			
			 698  | 
			
			 483  | 
			
			 432  | 
			
			 381  | 
			
			 32  | 
			
			 1.6  | 
			
			 12-25  | 
			
			 396  | 
		
| 
			 DH44Y-300Lb  | 
		|||||||||
| 
			 50  | 
			
			 2  | 
			
			 267  | 
			
			 165  | 
			
			 127  | 
			
			 92  | 
			
			 23  | 
			
			 1.6  | 
			
			 8-19  | 
			
			 178  | 
		
| 
			 80  | 
			
			 3  | 
			
			 318  | 
			
			 210  | 
			
			 168.5  | 
			
			 127  | 
			
			 29  | 
			
			 1.6  | 
			
			 8-22  | 
			
			 216  | 
		
| 
			 100  | 
			
			 4  | 
			
			 356  | 
			
			 254  | 
			
			 200  | 
			
			 157  | 
			
			 32  | 
			
			 1.6  | 
			
			 8-22  | 
			
			 241  | 
		
| 
			 125  | 
			
			 5  | 
			
			 400  | 
			
			 279  | 
			
			 235  | 
			
			 186  | 
			
			 35  | 
			
			 1.6  | 
			
			 8-22  | 
			
			 267  | 
		
| 
			 150  | 
			
			 6  | 
			
			 444  | 
			
			 318  | 
			
			 270  | 
			
			 216  | 
			
			 37  | 
			
			 1.6  | 
			
			 12-22  | 
			
			 305  | 
		
| 
			 200  | 
			
			 8  | 
			
			 533  | 
			
			 381  | 
			
			 330  | 
			
			 270  | 
			
			 42  | 
			
			 1.6  | 
			
			 12-25  | 
			
			 368  | 
		
| 
			 250  | 
			
			 10  | 
			
			 622  | 
			
			 445  | 
			
			 387  | 
			
			 324  | 
			
			 48  | 
			
			 1.6  | 
			
			 16-29  | 
			
			 394  | 
		
| 
			 300  | 
			
			 12  | 
			
			 711  | 
			
			 521  | 
			
			 451  | 
			
			 381  | 
			
			 51  | 
			
			 1.6  | 
			
			 16-32  | 
			
			 445  | 
		
| 
			 DH44Y-600Lb  | 
		|||||||||
| 
			 50  | 
			
			 2  | 
			
			 295  | 
			
			 165  | 
			
			 127  | 
			
			 92  | 
			
			 33  | 
			
			 6.4  | 
			
			 8-19  | 
			
			 203  | 
		
| 
			 80  | 
			
			 3  | 
			
			 359  | 
			
			 210  | 
			
			 168  | 
			
			 127  | 
			
			 36  | 
			
			 6.4  | 
			
			 8-22  | 
			
			 235  | 
		
| 
			 100  | 
			
			 4  | 
			
			 435  | 
			
			 273  | 
			
			 216  | 
			
			 157  | 
			
			 45  | 
			
			 6.4  | 
			
			 8-25  | 
			
			 286  | 
		
| 
			 125  | 
			
			 5  | 
			
			 511  | 
			
			 330  | 
			
			 266.5  | 
			
			 186  | 
			
			 52  | 
			
			 6.4  | 
			
			 8-29  | 
			
			 292  | 
		
| 
			 150  | 
			
			 6  | 
			
			 562  | 
			
			 356  | 
			
			 292  | 
			
			 216  | 
			
			 55  | 
			
			 6.4  | 
			
			 12-29  | 
			
			 330  | 
		
| 
			 200  | 
			
			 8  | 
			
			 664  | 
			
			 419  | 
			
			 349  | 
			
			 270  | 
			
			 63  | 
			
			 6.4  | 
			
			 12-32  | 
			
			 381  | 
		
| 
			 250  | 
			
			 10  | 
			
			 791  | 
			
			 510  | 
			
			 432  | 
			
			 324  | 
			
			 71  | 
			
			 6.4  | 
			
			 16-35  | 
			
			 457  | 
		
| 
			 300  | 
			
			 12  | 
			
			 842  | 
			
			 559  | 
			
			 489  | 
			
			 381  | 
			
			 74  | 
			
			 6.4  | 
			
			 20-35  | 
			
			 584  | 
		
【Structure picture】

Keywords:
Valve