Yuyao No. 4 Instrument Factory
| Payment Terms | T/T, Western Union |
| Supply Ability | consult |
| Delivery Time | depend on the order quantity |
| Packaging Details | package for exporting standard |
| material | AC220～240V AC110V 50/60Hz 25VA DC24V DC12V 13W |
| interface size | 3/8＂ ～ 3＂ |
| interface | digital timer, LED light connector |
| working pressure | ES low power energy saving coil（AC220V 3VA DC24V 3W） |
| voltage | brass SS304 SS316 |
| coil | IP65 H degree |
| Brand Name | ROUND STAR |
| Model Number | DFD |
| Certification | ISO CE ROHS |
| Place of Origin | CHINA (YUYAO CITY) |
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Product Specification
| Payment Terms | T/T, Western Union | Supply Ability | consult |
| Delivery Time | depend on the order quantity | Packaging Details | package for exporting standard |
| material | AC220～240V AC110V 50/60Hz 25VA DC24V DC12V 13W | interface size | 3/8＂ ～ 3＂ |
| interface | digital timer, LED light connector | working pressure | ES low power energy saving coil（AC220V 3VA DC24V 3W） |
| voltage | brass SS304 SS316 | coil | IP65 H degree |
| Brand Name | ROUND STAR | Model Number | DFD |
| Certification | ISO CE ROHS | Place of Origin | CHINA (YUYAO CITY) |
| High Light | solenoid water valve ，electric solenoid water valve | ||
DFD series 2-way pilot operated normally closed brass stainless steel water air solenoid valve 3/8＂ ～ 3＂
The valve is opened for the second pilot valve solenoid valve structure mainly by the pilot valve and main valves, main valve with rubber seal structure. Chang position, the pilot valve plunger seal the mouth cavity pressure balance valve, the main valve port closed. When the coil is energized, the electromagnetic force on the movable core pull, the main valve chamber media leaks from the pilot valve port, as well as a pressure difference, the diaphragm or valve cup was quickly hold up, mouth open the main valve, the valve was then the passage. When the coil power, the magnetic field disappears, the core reset and closed pilot valve port, after the pilot valve and the main valve cavity pressure equalization valve and was closed.
DFD-series 2-way pilot operated(NC)specification table
(ES coil can match EPDM and VITON, but medium temperature must be ≤80℃)
| interface
| orifice (mm) | Cv
| pressure (bar) | medium temp. ℃
| sealing material | coil insulation degree | power
| normal order code
| ||||||
| min pressure | Max pressure
| normal coil
| Es coil | plastic seal AC220V G thread sealing material:blank:NBR E:EPDM V:VITON
| ||||||||||
| air gas water hotwater liquid light oil | VA | W | VA
| W
| ||||||||||
| AC 220 V | DC 24 V | AC 220 V | DC 24 V | |||||||||||
| AC | DC | brass | SS304 | |||||||||||
| 3/8〃 | 13 | 4.5 | 0.3 | 12 | 10 | 80 | NBR | H | 25 | 13 | 3 | 3 | DFD-10-AC220V | DFD-10J-AC220V |
| 13 | 4.5 | 0.3 | 12 | 10 | 130 | EPDM | H | 25 | 13 | DFD-10-E-AC220V | DFD-10J-E-AC220V | |||
| 13 | 4.5 | 0.3 | 12 | 10 | 120 | VITON | H | 25 | 13 | DFD-10-V-AC220V | DFD-10J-V-AC220V | |||
| 1/2〃
| 13 | 4.5 | 0.3 | 12 | 10 | 80 | NBR | H | 25 | 13 | 3 | 3 | DFD-15-AC220V | DFD-15J-AC220V |
| 13 | 4.5 | 0.3 | 12 | 10 | 130 | EPDM | H | 25 | 13 | DFD-15-E-AC220V -15-E-AC220V | DFD-15J-E-AC220V | |||
| 13 | 4.5 | 0.3 | 12 | 10 | 120 | VITON | H | 25 | 13 | DFD-15-V-AC220V | DFD-15J-V-AC220V | |||
| 3/4〃 | 18 | 7.2 | 0.3 | 12 | 10 | 80 | NBR | H | 25 | 13 | 3 | 3 | DFD-20-AC220V | DFD-20J-AC220V |
| 18 | 7.2 | 0.3 | 12 | 10 | 130 | EPDM | H | 25 | 13 | DFD-20-E-AC220V | DFD-20J-E-AC220V | |||
| 18 | 7.2
| 0.3 | 12 | 10 | 120 | VITON | H | 25 | 13 | DFD-20-V-AC220V | DFD-20J-V-AC220V | |||
| 1〃 | 23 | 12 | 0.3 | 12 | 10 | 80 | NBR | H | 25 | 13 | 3 | 3 | DFD-25-AC220V | DFD-25J-AC220V |
| 23 | 12 | 0.3 | 12 | 10 | 130 | EPDM | H | 25 | 13 | DFD-25-E-AC220V | DFD-25J-E-AC220V | |||
| 23 | 12 | 0.3 | 12 | 10 | 120 | VITON | H | 25 | 13 | DFD-25-V-AC220V | DFD-25J-V-AC220V | |||
| 11/4〃
| 33 | 24 | 0.3 | 12 | 10 | 80 | NBR | H | 25 | 13 | 3 | 3 | DFD-32-AC220V | DFD-32J-AC220V |
| 32 | 24 | 0.3 | 12 | 10 | 130 | EPDM | H | 25 | 13 | DFD-32-E-AC220V | DFD-32J-E-AC220V | |||
| 32 | 24 | 0.3 | 12 | 10 | 120 | VITON | H | 25 | 13 | DFD-32-V-AC220V | DFD-32J-V-AC220V | |||
| 11/2〃 | 40 | 30 | 0.3 | 12 | 10 | 80 | NBR | H | 25 | 13 | 3 | 3 | DFD-40-AC220V | DFD-40J-AC220V |
| 40 | 30 | 0.3 | 12 | 10 | 130 | EPDM | H | 25 | 13 | DFD-40-E-AC220V | DFD-40J-E-AC220V | |||
| 40 | 30 | 0.3 | 12 | 10 | 120 | VITON | H | 25 | 13 | DFD-40-V-AC220V | DFD-40J-V-AC220V | |||
| 2〃 | 50 | 48 | 0.3 | 12 | 10 | 80 | NBR | H | 25 | 13 | 3 | 3 | DFD-50-AC220V | DFD-50J-AC220V |
| 50 | 48 | 0.3 | 12 | 10 | 130 | EPDM | H | 25 | 13 | DFD-50-E-AC220V | DFD-50J-E-AC220V | |||
| 50 | 48 | 0.3 | 12 | 10 | 120 | VITON | H | 25 | 13 | DFD-50-V-AC220V | DFD-50J-V-AC220V | |||
| 3〃 | 80 | 82 | 0.3 | 12 | 10 | 80 | NBR | H | 25 | 13 | 3 | 3 | DFD-80 - AC220V | |
| 80 | 82 | 0.3 | 12 | 10 | 130 | EPDM | H | 25 | 13 | DFD-80 –E -AC220V | ||||
| 80 | 82 | 0.3 | 12 | 10 | 120 | VITON | H | 25 | 13 | DFD-80 –V -AC220V | ||||
options :
Rc thread
sealing material: EPDM VITON
digital timer, LED light connector
ES low power energy saving coil(AC220 V3VA DC24V 3W)
Valvebody material: SS316
Coil: wired plastic seal
Founded in 1965, Yuyao No.4 Instrument Factory has been a professional manufacturer of solenoid valves and has enjoyed an excellent reputation through the past more than 50 years in China. With the introduction of foreign cutting-edge technology, and the sustained innovation and self-improving, the company has mastered the key technology and is keeping pioneer position in the field of fluid solenoid valve.
The company is equipped with superior production machines, advanced process flows, complete testing systems; the products have sophisticated structure, reliable performance, fine outlook and reasonable price, covering over 40 series and 3000 specifications, having been exported to all over the whole world since 2004.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1965
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Founded in 1965, Yuyao No.4 Instrument Factory has been a professional manufacturer of solenoid valves and has enjoyed an excellent reputation through the past more than 50 years in China. With the introduction of foreign cutting-edge technology, and the sustained innovation and self-improving, the ... Founded in 1965, Yuyao No.4 Instrument Factory has been a professional manufacturer of solenoid valves and has enjoyed an excellent reputation through the past more than 50 years in China. With the introduction of foreign cutting-edge technology, and the sustained innovation and self-improving, the ...
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