DF series water solenoid valve is suitable for water or liquid as the working medium, can automatically control or remote control of air, water, oil and liquid and other working media pipeline on and off. As the DF solenoid valve using rubber seal, so the cleanliness of the working medium requirements are greatly reduced. With rapid opening and closing, high reliability. Water solenoid valve for the second opening of the pilot-operated solenoid valve, its structure is mainly composed of pilot valve and main valve, the main valve using rubber sealing structure. Normal position, the movable iron core sealed pilot valve port, the pressure balance in the valve cavity, the main valve port closed. When the water solenoid valve coil is energized, electromagnetic force will be active core suction, the main valve cavity of the medium from the pilot valve port leakage, so as to produce a pressure difference, the diaphragm or the valve cup was quickly raised, the main valve opening, the valve is open, the valve will be in the way state. When the coil is de-energized, the magnetic field disappears, the movable iron core reset, closed the pilot valve port, the pilot valve and the main valve cavity pressure balance, the valve is closed.
Caveat
- Keep the solenoid tube diameter mounted horizontally and the coil mounted vertically.
- The valve is of pilot-operated construction with an opening pressure of two kilograms.
- Outlet piping with backflow requires a check valve.
- The medium must be clean and non-corrosive (water, compressed air can be passed through).
- This coil is not suitable for outdoor use, if you need outdoor use, please choose outdoor waterproof coil.
- It is recommended to energize the coil within 1 hour at a time, if you need to energize the coil for a long time, please choose the coil with energy-saving module.
Product Parameters
Product Model | DF Series |
Valve Body Material | Cast Iron |
Forms of Control | Normally Open/Normally Closed |
Optional Voltage | AC220V/DC24V |
Work Pressure | 0.2~0.8Mpa |
Applicable Media | Air, Purified Water, etc. |
Operating Temperature | ≤80°C |
Product Size Reference

Model | Nominal Diameter | A | B | C | D | E | N-F | G | H |
DF-40F | DN40 | 210 | 15 | 2 | 157 | 88 | 4-18 | 110 | 225 |
DF-50F | DN50 | 210 | 16 | 2 | 157 | 88 | 4-18 | 125 | 225 |
DF-65F | DN65 | 260 | 20 | 3 | 190 | 118 | 4-18 | 145 | 253 |
DF-80F | DN80 | 260 | 18 | 2 | 190 | 132 | 8-18 | 160 | 253 |
DF-100F | DN100 | 310 | 20 | 2 | 214 | 160 | 8-18 | 180 | 275 |
DF-125F | DN125 | 380 | 25 | 3 | 250 | 184 | 8-18 | 210 | 390 |
DF-150F | DN150 | 410 | 24 | 3 | 285 | 212 | 8-22 | 240 | 410 |


















