AD11EX4 is a diaphragm drive pilot operated poppet 2-port solenoid valve with pressure and explosion proof construction (Ex d IIB T4). It is an NC type that opens when energized, used for air, water, kerosene and oil, with Rc1/2, Rc3/4 and Rc1 ports.
| Working Fluid | Air / water / kerosene / oil (50 mm²/s or less) |
| Valve Structure | Pilot operated poppet, diaphragm drive, NC (open when energized) |
| Explosion Protection | Pressure and explosion proof construction Ex d IIB T4 (group IIB / temperature class T4) |
| Explosion-Proof Certification Bodies | Japan certification (TIIS) or Korea certification (KOSHA), selected by order code (blank = TIIS, KR = KOSHA) |
| Certification Numbers | AC coil (class 180 (H)): Japan No. TC20594 / Korea 16-AV4BO-0150X; DC coil and diode integrated AC coil (class 130 (B)): Japan No. TC20618 / Korea 16-AV4BO-0147X |
| Atmosphere | Outdoors / explosive gas (group IIB / temperature class T4) |
| Working Pressure Differential | 0.02 to 1 MPa (refer to max. working pressure differential by model) |
| Max. Working Pressure | 2 MPa |
| Proof Pressure | 8 MPa (water pressure) |
| Fluid Temperature | -10 to 60 °C (no freezing) |
| Ambient Temperature | -10 to 50 °C |
| Coil Thermal Class | AC coil class 180 (H), DC coil class 130 (B), AC diode integrated coil class 130 (B) |
| Valve Seat Leakage | 0.2 cm³/min (ANR) or less (air, measured at 0.02 to 1 MPa) |
| Degree of Protection | IP65 or equivalent |
| Mounting Orientation | Free (within working pressure differential range) |
| Port Size / Orifice Size | AD11EX4-15A: Rc1/2, ø15 mm; -20A: Rc3/4, ø20 mm; -25A: Rc1, ø25 mm |
| Min. Working Pressure Differential | 0.02 MPa |
| Max. Working Pressure Differential (MPa) | Air AC 1 / DC 0.6, water and kerosene AC 0.7 / DC 0.6, oil AC 0.6 / DC 0.6 (all models; the DC column also applies to the diode integrated coil on AC power) |
| Flow Characteristics | -15A: C 21 dm³/(s·bar), b 0.22, Cv 4.5; -20A: Cv 9.3, effective cross-sectional area 162 mm²; -25A: Cv 12.0, effective cross-sectional area 231 mm² |
| Body / Seal Material | Body: bronze (standard) or stainless steel; seal: NBR (standard) or FKM; oil-prohibited treatment options are available (combinations H, J, L, M) |
| Coil | Code 3: thermal class 130 (B) explosion-proof coil (for DC); code 4: thermal class 180 (H) explosion-proof coil (for AC); code 5: thermal class 130 (B) diode integrated explosion-proof coil (for AC) |
| Applicable Cable O.D. | ø7.5 to ø9.5 / ø9.5 to ø10.5 / ø10.5 to ø11.5 / ø11.5 to ø13.5 (order codes 9 / 10 / 11 / 13) |
| Options | Manual override (locking) |
| Rated Voltage | 100 VAC 50/60 Hz, 200 VAC 50/60 Hz (options: 12 VDC, 24 VDC, 48 VDC, 100 VDC) |
| Apparent Power / Power Consumption | Apparent power: holding 18 VA (50 Hz) / 15 VA (60 Hz), starting 29 VA (50 Hz) / 24 VA (60 Hz); power consumption: AC 50/60 Hz 8/7 W, DC 11.6 W |
| Weight | -15A: 1.7 kg, -20A: 1.9 kg, -25A: 2.3 kg |