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5404-04
WAALPC
8481100090
Servo-Assisted Piston Design – This 2/2-way solenoid valve utilizes a servo-assisted piston operation, requiring a minimum differential pressure (typically 1 bar) to fully open or close the valve.
High Pressure Capability – Designed for demanding applications, the valve handles pressures up to 50 bar depending on the orifice size and configuration.
Durable Brass Body – Standard body material is brass, certified to meet European drinking water standards. Internals are made of stainless steel and brass for corrosion resistance.
Versatile Media Compatibility – Suitable for neutral gases and liquids including compressed air, water, hydraulic oil, and steam (special versions available).
ORDERING CODE

DATA SHEET
Model | 5404-02/03/04 | 5404-06 | 5404-08 |
| Working Medium | Air/Water/Oil | ||
| Action Mode | Guide Type | ||
| Type | Normal Close Type | ||
| Aperture of Flow Rate(mm) | 13 | 25 | 25 |
| Cv Value | 2 | 5 | 10 |
| Port Size | 1/4 1/8 1/2 | 3/4 | 1 |
| Working Pressure | Gas:1~50(kgf/cm2) Liquid: 1~40(kgf/cm2) | Gas:1~30(kgf/cm2) Liquid: 1~25(kgf/cm2) | Gas:1~30(kgf/cm2) Liquid: 1~25(kgf/cm2) |
| Max. Pressure Resistance | 75(kgf/cm2) | 40(kgf/cm2) | |
| Temperature | -5~150℃ | ||
| Working Voltage Range | ±10% | ||
| Protect Class | IP65 | ||
| Weight(kg) | 0.814/0.775/0.763 | 1.827 | 1.737 |
STRUCTURE&DIMENSION(MM)

| Model | Inner Hole | Bore | A | B | F | E | L | A/F |
| 5404-02 | 12 | 1/4'' | 76 | 90 | 13 | 32 | 64 | 28 |
| 5404-03 | 12 | 3/8'' | 76 | 90 | 13 | 32 | 64 | 28 |
| 5404-04 | 12 | 1/2'' | 76 | 90 | 13 | 32 | 64 | 28 |
| 5404-06 | 20 | 3/4'' | 99.5 | 118 | 16 | 60 | 91 | 41 |
| 5404-08 | 25 | 1'' | 99.5 | 118 | 16 | 60 | 91 | 41 |