Complaint
The water pump diffuser or suction diffuser is installed in the pumping station of the HVAC system, integrating elbows, variable diameter, filtering, and rectifying all-in-one valve.
It can prevent water hammer, cavitation and impurities from damaging the impeller of the water pump when used with a multi-functional control check valve, and prolong the service life of the water pump.
NO | Name | Material | |
| Chinese Spec | ASTM Spec | ||
| 1 | Body | HT250 QT450- 10 | ASTM 126-ClassB A536 65-45- 12 |
| 2 | Cover | HT250 QT450- 10 | ASTM 126-ClassB A536 65-45- 12 |
| 3 | Screen | 0Cr18Ni9 | ASTM A276 304 |
| 4 | O-ring | EPDM | EPDN |
| NPS | 2x2 | 2½x2 | 2½x2½ | 3x2 | 3x2½ | 3x3 | 4x3 | 4x4 | 5x4 | 5x5 | 6x4 | 6x5 | 6x6 | 8x5 | 8x6 |
| DN | 50x50 | 65x50 | 65x65 | 80x50 | 80x65 | 80x80 | 100x80 | 100x100 | 125x100 | 125x125 | 150x100 | 150x125 | 150x150 | 200x125 | 200x150 |
| L1 | 114.3 | 127 | 127 | 139.7 | 140.1 | 140.1 | 165 | 165 | 191.5 | 191.5 | 203 | 203 | 203 | 192 | 228.6 |
| L2 | 114.3 | 127 | 127 | 114 | 140.1 | 140.1 | 165 | 165 | 191.5 | 191.5 | 165 | 203 | 203 | 228.6 | 203.2 |
| H | 125 | 138 | 138 | 125 | 143 | 143 | 172 | 166 | 223 | 223 | 172 | 250 | 250 | 312 | 250 |
| NPT | ¾NPT | 1NPT | |||||||||||||
| Kv | 64.5 | 64.5 | 109 | 64.5 | 109 | 143 | 143 | 252 | 252 | 498 | 252 | 498 | 585 | 498 | 585 |
| Cv | 75.2 | 75.2 | 127.2 | 75.2 | 127.2 | 166.9 | 166.9 | 294.1 | 294.1 | 581.2 | 294.1 | 581.2 | 682.7 | 581.2 | 682.7 |
| Weight (Kg) | 11 | 15 | 17 | 19 | 21 | 23 | 33 | 36 | 48 | 50 | 42 | 52 | 54 | 60 | 83 |
| NPS | 8x8 | 10x8 | 10x10 | 12x8 | 12x10 | 12x12 | 14x10 | 14x12 | 14x14 | 16x12 | 16x14 | 16x16 |
| DN | 200x200 | 250x200 | 250x250 | 300x200 | 300x250 | 300x300 | 350x250 | 350x300 | 350x350 | 400x300 | 400x350 | 400x400 |
| L1 | 228.6 | 279.4 | 279.4 | 280 | 304.8 | 304.8 | 318 | 318 | 318 | 334 | 334 | 334 |
| L2 | 228.6 | 228.6 | 279.4 | 280 | 279.4 | 304.8 | 328 | 328 | 328 | 364 | 364 | 364 |
| H | 355 | 355 | 458 | 315 | 458 | 454 | 460 | 460 | 460 | 522 | 522 | 522 |
| NPT | 1¼NPT | |||||||||||
| Kv | 910 | 910 | 1480 | 910 | 1480 | 2150 | 1480 | 2150 | 252 | 498 | 252 | 498 |
| Cv | 1062 | 1062 | 1727.2 | 1062 | 1727.2 | 2509.1 | 1727.2 | 2509.1 | 294.1 | 581.2 | 294.1 | 581.2 |
| Weight (Kg) | 110 | 124 | 141 | 148 | 202 | 215 | 226 | 243 | 48 | 50 | 42 | 52 |
1, Commonly used at the pump suction side ,not only to filter the impurities, but also replace the elbow Strainer and straight pipe ahead of the pump suction side , can reduce the cost.
2, Because the suction side and discharge side could have different diameter, it can replace the different diameter elbow.
3, Large open area, large drain outlet, can drainage and flushing easily, so as to reduce the maintenance.
4,Discharge outlet has unique straight guide vane, can reduce the damage of the vortex flow to the pump and the system.
Shanghai Flow Valve &Fitting Co, Ltd. was founded in 1998, mainly in foreign trade export business, has invested in two professional manufacturing factories in Shanghai Jiading Waigang Industrial Zoneand Tianjin Wuqing Jingbin Industrial Park.
These two subordinate factories are responsible for the professional production of ANSl, DINBS, GB and other standards of ball valve, butterfly valve, gate valve, stop valve, balance valve, filter, plug valve, control valve and other series of products.
Nearly 80% of the company's products are exported to Europe,America, the Middle East, Southeast Asia and other parts of the world and we also conduct technical cooperation and OEM production with many European and American companies.
Shanghai Flow Valve & Fitting Co., Ltd. began to actively participate in major domestic engineering projects in 2003.
lt has established five sales centers in Shanghai, Beijing, Guangzhou, Xi'an and Chongqing, and its business covers northeast China, North China, northwest China,Southwest China, Central China, South China and other regions.
The sales network and after-sales network basically cover most regions of mainland China.
Q1: Can I have a sample order for valve?
A1:Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
