Bürkert Type 6213 EV Solenoid Valve | 00222171 00221629 00221630 | 2/2-Way Diaphragm Valve

The Type 6213 EV Series from Chengyuan Hydraulic consists of high-performance 2/2-way diaphragm solenoid valves fully compatible with Bürkert’s S.EV standard. Utilizing an advanced assisted-servo (Servostat) structure, these valves feature a spring-coupled diaphragm that solves the common issue of pilot-operated valves failing to open at zero or low differential pressure. For key part numbers such as 00222171, 00221629, and 00221630, we employ reinforced FKM/NBR diaphragms. Every valve is subjected to 100% opening and leakage testing under simulated conditions, ensuring 100% original-place interchangeability in demanding fluid environments.

Technical Specifications :

• Series Model: Type 6213 EV (Assisted Diaphragm)

• Function: 2/2-way, Normally Closed (NC)

• Reference Part Numbers: 00222171, 00221629, 00221630, 00221631, 00221627

• Nominal Sizes: DN 10mm to DN 40mm

• Pressure Range: 0 to 10 bar (depending on orifice and coil)

• Body Material: Premium Brass (DIN EN 50930-6 compliant) / Stainless Steel 316L

• Sealing Material: NBR (General), FKM (High temp/Chemical), EPDM (Water/Alkaline)

• Media Temperature: -10°C to +120°C (depending on seal)

• Voltage Options: 24V DC, 230V AC (50-60Hz)

• Protection Class: IP65 (with cable plug)

Key Technical Advantages:

• Zero Differential Pressure Startup: Unlike standard pilot-operated valves, the 6213 EV uses spring-coupled technology to ensure full opening even at 0 bar differential pressure (e.g., gravity-fed systems), significantly broadening its application scope.

• Anti-Vibration & Low Noise Design: The internal flow path is optimized via CFD to provide a soft-closing action. This effectively minimizes water hammer effects, protecting the piping system and ensuring quiet operation.

• AC07 Modular Coil System: Coils are encapsulated in epoxy resin for superior vibration resistance and heat dissipation. Even under 100% continuous duty cycles (ED), the temperature rise remains within strict limits, extending electrical service life.

• Drinking Water Compliance (Optional): Specific models are available with sealing materials certified to KTW and W270 standards, making them suitable for the food industry and drinking water filtration systems.

Application Areas:

• Industrial Cooling: Controlling the flow of cooling water for machine tools and laser equipment.

• Cleaning & Filtration: Integrated into industrial washers and Reverse Osmosis (RO) water treatment units.

• Fluid Dispensing: Ideal for tank drainage or dispensing systems due to its ability to operate without a pressure head.

Expert Maintenance Tips:

• Flow Direction: During installation, always verify that the arrow on the valve body aligns with the actual fluid flow direction.

• Media Filtration: To prevent debris from entering the servo chamber and causing diaphragm failure, it is highly recommended to install a 50μm filter upstream.

• Coil Safety: Never remove the coil from the valve while it is energized; the sudden drop in inductance will cause the coil to burn out instantaneously.