Bürkert 0331 Solenoid Valve | 0020287 0021892 0041183 | 2/2 Way Media Isolated Valve

The 0331 Series solenoid valves from Chengyuan Hydraulic are high-end fluid control components fully compatible with Bürkert industrial standards. This direct-acting plunger valve stands out due to its unique Media Isolation design—the electromagnetic actuator is completely separated from the fluid path by a highly flexible diaphragm. This ensures that the medium only contacts the valve body and the seal, preventing corrosive fluids from damaging the metal armature. For core models such as 0020287 (G 1/4) and 0041183, we offer a variety of material combinations. Every valve undergoes 100% simulated response and leakage testing to ensure precision over millions of cycles, guaranteeing 100% original-place interchangeability.

Technical Specifications :

• Series Model: 0331 (2/2 or 3/2 Way)

• Reference Part Numbers: 0020287, 0021892, 0024993, 0041183, 0023541

• Operation: Direct-acting

• Orifice Size: DN 2.0mm to DN 4.0mm

• Pressure Range: 0 to 16 bar (depending on orifice and media)

• Body Materials: Stainless Steel (316L) / Brass / PVDF

• Seal Materials: FKM / EPDM / FFKM (Perfluoroelastomer)

• Media Temperature: -10°C to +130°C (depending on seal)

• Voltage Options: 24V DC, 110V AC, 230V AC (8W standard)

• Electrical Connection: DIN EN 175301-803 Form A

Key Technical Advantages:

• Advanced Media Separation: The core of the 0331 series is the diaphragm seal between the armature and the fluid. This design allows the valve to handle dirty media containing particles and prevents heat transfer from the coil to temperature-sensitive fluids, significantly broadening its application scope.

• Long-Life Direct-Acting Plunger: The valve opens without needing a differential pressure. We apply low-friction coatings to the plunger surface and use high-performance springs to ensure response times remain consistently between 10-20ms, even under high-frequency operation.

• Modular Structure with Manual Override: Equipped as standard with a manual override button for easy testing during commissioning or power failure. The compact connection between the valve body and coil allows for 360° coil rotation, offering superior installation flexibility.

• 100% Precision Seal Validation: Chengyuan conducts helium leak detection and full-load opening pressure tests on every 0331 valve. Specifically for models like 0023541, we ensure “bubble-tight” performance during high-vacuum or high-pressure switching.

Application Areas:

• Water Treatment & Analytics: Dosing of corrosive reagents in laboratory analytical equipment.

• Medical & Pharma: Cleaning systems and high-purity chemical distribution.

• Food Industry: Rapid shut-off control on filling and production lines.

Expert Maintenance Tips:

• Chemical Compatibility Check: Verify fluid components before ordering. For aggressive acids or bases, always select the PVDF body and FFKM seal combination to prevent premature diaphragm swelling or cracking.

• Installation Orientation: Although mountable in any position, for media containing trace impurities, we recommend installing with the coil pointing vertically upward to minimize debris accumulation in the diaphragm groove.

• Coil Thermal Protection: While the 0331 coil is rated for 100% continuous duty (ED), ensure adequate ventilation if installed in sealed enclosures to prolong insulation life.