800X pressure differential by-pass valve
Place of Orign :China
Product name: 800X pressure differential by-pass valve
 | Purpose: Mainly applied in the air-conditioning system to keep the pressure difference between the water pipeline so as to enhance the systematic efficacy and guarantee safety. Characteristics锛 Easily installed and debugged,once being well debugged,automatic control can be done at once.both valve sensor and complicated driving and executing mechanisms are omitted,making the repair easier and any fault uneasily occurring. Principle: The two control pipes of the pilot valve are linked to the high pressure source (water supply pipe) and the low pressure one(back-water pipe) separately and,when the high and low pressure difference is over the set value,the pilot valve is opened and the main valve is followed to open,some water flows back to the back-water pipe directly via ZF800X. When the said pressure difference gets reset,ZF800X will be closed automatically. |
| Name of parts | Material of parts |
| Body & cap | Ductile iron |
| Valve seat & valve disc | Brass |
| Valve stem | Stainless steel |
| Spring | Stainless steel |
| Surface | EPOXY |
| Valve sealing | EPDM/NBR |
| Normal pressure (Mpa) | Body test pressure (Mpa) | Sealing test pressure (Mpa) | Applicable medium | Applicable temperature (°C) |
| 1.0 | 1.5 | 1.1 | water | 0~80 |
| 1.6 | 2.4 | 1.76 | ||
| 2.5 | 3.75 | 2.75 |
| DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
| L | 215 | 220 | 250 | 290 | 310 | 360 | 430 | 510 | 595 | 630 | 630 | 780 | 900 | 1100 |
| H | 225 | 300 | 320 | 420 | 450 | 500 | 710 | 770 | 905 | 970 | 1000 | 780 | 890 | 1060 |
