HC42X, HC42T, HC42H PN10 ~ PN25-type check valve for quiet, drainage, fire protection, HVAC systems can be installed on the pump outlet to prevent flow reversal and water hammer damage to the pump. 

 【Features】 
 HC42X, HC42T, HC42H type PN10 ~ PN25 mute the internal flow valve design with sleek, minimal pressure loss, the valve flap open and close a short trip, stop the pump can be quickly shut down to prevent water hammer sound great, the formation of static sound effect. 

 【Materials】 main parts 
 Part Name Material 
 Body iron, ductile iron, carbon steel 
 Diversion body cast iron, ductile iron, carbon steel 
 Bronze seat, chrome stainless steel 
 Valve bronze, chrome stainless steel 
 Axis bronze, chromium steel 
 Stainless steel spring 

 Shape and size of the main connection 

 Model DN D1 D2 D3 N-ΦD L 
 1.0MPa 1.6 MPa 1.0MPa 1.6 MPa 1.0MPa 1.6 MPa 1.0MPa 1.6 MPa 
 CVKR-0300 DN300 370 400 410 460 12-13 12-28 181 
 CVKR-0350 DN350 429 460 470 520 16-23 16-28 184 
 CVKR-0400 DN400 480 515 525 580 16-28 16-31 191 
 CVKR-0450 DN450 530 565 585 640 20-28 20-31 203 
 CVKR-0500 DN500 582 620 650 715 20-28 20-34 219 
 CVKR-0600 DN600 682 725 770 810 840 20-31 20-37 222 
 CVKR-0700 DN700 794 840 840 895 910 24-31 24-37 280 
 CVKR-0800 DN800 901 950 950 1015 1025 24-34 24-40 356 
 CVKR-0900 DN900 1001 1050 1050 1125 1125 28-40 28-40 368 
 CVKR-1000 DN1000 1112 1160 1170 1230 1255 28-43 28-43 432 
 CVKR-1200 DN1200 1380 1390 1455 1485 32-49 32-49 524