Zhongchi
Zhongchi
Zhongchi
Zhongchi
Zhongchi
Zhongchi
Zhongchi
Zhongchi
Zhongchi

The HC41X Silencing Check Valve is specifically designed for applications—such as pump outlets and water supply and drainage risers—that demand stringent standards regarding noise reduction, water hammer prevention, and sealing performance. Its valve disc features a soft rubber sealing surface, ensuring flexible contact with the valve seat during closure; this eliminates the harsh metallic impact typically associated with valve shut-off, thereby keeping closing noise levels below 40 decibels.
| Nominal diameter | Length | Connection dimensions (standard values) Flange standard: Ministry of Chemical Industry 20592 | ||||||||
| 1.0MPa | 1.6MPa | 2.5MPa | ||||||||
| mm | L | D | D1 | n-d | D | D1 | n-d | D | D1 | n-d |
| 40 | 97 | 150 | 110 | 4-18 | 150 | 110 | 4-18 | 150 | 110 | 4-18 |
| 50 | 100 | 165 | 125 | 4-18 | 165 | 125 | 4-18 | 165 | 125 | 4-18 |
| 65 | 121 | 185 | 145 | 8-18 | 185 | 145 | 8-18 | 185 | 145 | 8-18 |
| 80 | 146 | 200 | 160 | 8-18 | 200 | 160 | 8-18 | 200 | 160 | 8-18 |
| 100 | 161 | 220 | 180 | 8-18 | 220 | 180 | 8-18 | 235 | 190 | 8-22 |
| 125 | 181 | 250 | 240 | 8-18 | 250 | 240 | 8-18 | 270 | 220 | 8-26 |
| 150 | 202 | 285 | 240 | 8-22 | 285 | 240 | 8-22 | 300 | 250 | 8-26 |
| 200 | 233 | 340 | 295 | 12-22 | 340 | 295 | 12-22 | 360 | 310 | 12-22 |
| 250 | 252 | 395 | 350 | 12-22 | 405 | 355 | 12-26 | 425 | 370 | 12-30 |
| 300 | 305 | 445 | 400 | 12-22 | 460 | 410 | 12-26 | 485 | 430 | 16-30 |
| 350 | 351 | 505 | 460 | 16-22 | 520 | 470 | 16-26 | 555 | 490 | 16-33 |
| 400 | 407 | 565 | 515 | 16-26 | 580 | 525 | 16-30 | 620 | 550 | 16-36 |
| 450 | 433 | 615 | 565 | 20-26 | 640 | 585 | 20-30 | 670 | 600 | 20-36 |
| 500 | 450 | 670 | 620 | 20-26 | 715 | 650 | 20-33 | 730 | 660 | 20-36 |
The dimensions above are for reference only.