ADK11EX4 is a diaphragm drive pilot kick 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, low vacuum, water, kerosene and oil, with Rc1/2, Rc3/4 and Rc1 ports.
| Working Fluid | Air / low vacuum [1.33×10³ Pa] / water / kerosene / oil (50 mm²/s or less) |
| Valve Structure | Pilot kick 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. TC20592 / Korea 16-AV4BO-0152X; DC coil and diode integrated AC coil (class 130 (B)): Japan No. TC20616 / Korea 16-AV4BO-0148X |
| Atmosphere | Outdoors / explosive gas (group IIB / temperature class T4) |
| Working Pressure Differential | 0 to 1 MPa (refer to max. working pressure differential by model) |
| Max. Working Pressure | 2 MPa |
| Proof Pressure | 4 MPa (water pressure) |
| Fluid Temperature | -10 to 60 °C (no freezing) (5 to 60 °C when the seal material is FKM) |
| 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 | 1 cm³/min (ANR) or less (air, measured at 0.02 to 1 MPa). The seal may be unstable below 0.02 MPa: inquire separately |
| Degree of Protection | IP65 or equivalent |
| Mounting Orientation | Unrestricted |
| Port Size / Orifice Size | ADK11EX4-15A: Rc1/2, ø16 mm; -20A: Rc3/4, ø23 mm; -25A: Rc1, ø28 mm |
| Min. Working Pressure Differential | 0 MPa |
| Max. Working Pressure Differential (MPa) | Air AC 1 / DC 0.6, water and kerosene AC 1 / DC 0.6, oil AC 0.6 / DC 0.5 (all models; the DC column also applies to the diode integrated coil on AC power) |
| Flow Characteristics | -15A: C 20 dm³/(s·bar), b 0.31, Cv 4.5; -20A: Cv 8.6, 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), FKM, EPM rubber (ethylene propylene rubber, oil-prohibited treatment option). The max. working pressure differential of the ethylene propylene rubber combination is 0.6 MPa, and it cannot be used with air (compressed air contains oil and ethylene propylene rubber is not oil-resistant) |
| 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) |
| 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 20 VA (50 Hz) / 16 VA (60 Hz), starting 80 VA (50 Hz) / 64 VA (60 Hz); power consumption: AC 50/60 Hz 10/8.5 W, DC 15 W |
| Weight | -15A: 1.4 kg, -20A: 1.5 kg, -25A: 1.9 kg |
| Use at Low Vacuum | Apply the vacuum to the OUT port side |