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| Pangalan ng mga bahagi | materyal | ||
| Bonnet ng katawan ng balbula | Gray na bakal | ||
| Butterfly | Gray na bakal | ||
| Valve shaft | Carbon steel | ||
| Singsing sa pagbubuklod | NBR | ||
| spring | hindi kinakalawang na Bakal |

| Uri | Nominal presyon (mpa) |
Testing pressure(mpa) | Angkop temperatura |
Angkop daluyan |
|||||
| Lakas (Tubig) |
Ilakip (Tubig) |
||||||||
| DH77X-10 | 1.0 | 1.50 | 1.10 | ≤80℃ | tubig | ||||
| Double Disc Check Valve Outline and connecting measurement | |||||||||
| Uri | Nominal DN(mm) |
Pagsukat(mm) | |||||||
| L R |
R | D | D0 | ||||||
| DH77X-10 | 40 | 43 | 23.5 | 92 | 66 | ||||
| 50 | 43 | 28.5 | 106 | 66 | |||||
| 65 | 46 | 34.5 | 126 | 81 | |||||
| 80 | 64 | 44 | 135 | 95 | |||||
| 100 | 64 | 52.8 | 158 | 118 | |||||
| 125 | 70 | 66.5 | 190 | 146 | |||||
| 150 | 76 | 74.5 | 214 | 171 | |||||
| 200 | 89 | 87.5 | 270 | 225 | |||||
| 250 | 114 | 127 | 328 | 266 | |||||
| 300 | 114 | 147 | 378 | 311 | |||||
1.Compact na istraktura, makatwirang disenyo, magandang balbula rigidity, makinis na daanan.
2. Ang paggamit ng flexible graphite packing, maaasahang sealing, magaan at flexible na operasyon.
Wafer style check valve industrial applications: Petroleum, Chemical, Paper, Making, Fertilizer,Coal Mining, Water Treatment and etc.
Small volume Compact structure and convenient maintenance
The dual plate can be self closed due to the elastic torque.
Fast closing can effective avoid the back-flowing
A class sealing, Zero leakage.
Easy installation, can be used to vertical and horizontal set up.
1. We have Sand or Precision casting technology, So we can as your drawing design and production.
2. Customers' logos are available cast on the valve body.
3. All our stainless steel wafer check valves with tempering procedure before Processing.
4. Use the CNC lathe during whole process.
5. The disc sealing surface use plasma welding machine welding.
6. Every valve must be tested before delivery from the factory, only qualified ones can be shipped.
7.The split disc check valve we usually use Bags to package, We also can according to specific customer's requests.
1. We are a gost valve manufacturer, and produce dual disc check valve since 1992.
2. Fast delivery.
3. Low price with high quality.
4. Professional work Team!
We also provide other GOST valve, JIS valve, DIN valve, BS series, etc.
More information about valve:
Backflow Preventer vs. Check Valve