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0331 Ex 2/2 or 3/2-Way Pivoted Armature Valve
Brand: Burkert Fluid Control Systems
The 0331 valve is a direct-acting, media-separated pivoted armature valve. It is available in 3/2 and 2/2-way versions. As a 3/2-way version, it can be used as a distributor or mixing valve.
Various diaphragm material combinations and methods of operation are available depending on the application. The standard brass housing satisfies all European drinking water requirements. Stainless steel (316L), PVDF, polypropylene and PEEK housing versions complete the offering. The solenoid coils are moulded with a chemically resistant epoxy.
The 0331 is equipped with manual override for commissioning and testing. For reduced energy requirements all coils can be delivered with electronic power reduction or as an impulse version. The switching status can be indicated with position feedback as a binary or NAMUR signal. In combination with a plug in accordance with DIN EN 17301-803 Form A, the valves satisfy protection class IP65/67 - in combination with a stainless steel or plastic housing NEMA 250 Kat.4X.
Features- Direct acting, medium separated valve up to orifice DN 4
- Maintenance-free pivoted armature technology
- Vibration resistant, screwed block coil system
- Suitable for aggressive alkali solutions and acids
- Service friendly, robust manual override
- Explosion proofed version
1 - 12 of 34 Part Numbers
305 772
- Circuit Function - 3/2-Way Valve, Servo-Assisted, Outlet B Normally Pressurized
- Orifice - 2 mm
- Seal Material / Housing or Seat Material / Electrical Connection - NBR / Brass / Terminal Box
- Voltage / Frequency - 110 V / UC
305 775
- Circuit Function - 3/2-Way Valve, Direct-Acting, When De-Energised Port A Exhausted
- Orifice - 2 mm
- Seal Material / Housing or Seat Material / Electrical Connection - FKM / Stainless Steel / Terminal Box
- Voltage / Frequency - 110 V / UC
305 777
- Circuit Function - 3/2-Way Valve, Universal Function, Flow Direction as Required
- Orifice - 2 mm
- Seal Material / Housing or Seat Material / Electrical Connection - NBR / Brass / Terminal Box
- Voltage / Frequency - 230 V Response, 240 V / UC
305 779
- Circuit Function - 3/2-Way Valve, Universal Function, Flow Direction as Required
- Orifice - 2 mm
- Seal Material / Housing or Seat Material / Electrical Connection - FKM / Brass / Terminal Box
- Voltage / Frequency - 110 V / UC
305 780
- Circuit Function - 3/2-Way Valve, Universal Function, Flow Direction as Required
- Orifice - 2 mm
- Seal Material / Housing or Seat Material / Electrical Connection - FKM / Brass / Terminal Box
- Voltage / Frequency - 230 V Response, 240 V / UC
305 784
- Circuit Function - 3/2-Way Valve, Universal Function, Flow Direction as Required
- Orifice - 2 mm
- Seal Material / Housing or Seat Material / Electrical Connection - FKM / Stainless Steel / Terminal Box
- Voltage / Frequency - 110 V / UC
305 786
- Circuit Function - 3/2-Way Valve, Universal Function, Flow Direction as Required
- Orifice - 2 mm
- Seal Material / Housing or Seat Material / Electrical Connection - FKM / Stainless Steel / Terminal Box
- Voltage / Frequency - 230 V Response, 240 V / UC
305 790
- Circuit Function - 3/2-Way Valve, Universal Function, Flow Direction as Required
- Orifice - 2 mm
- Seal Material / Housing or Seat Material / Electrical Connection - EPDM / Stainless Steel / Terminal Box
- Voltage / Frequency - 230 V Response, 240 V / UC
305 794
- Circuit Function - 3/2-Way Valve, Servo-Assisted, Outlet B Normally Pressurized
- Orifice - 2 mm
- Seal Material / Housing or Seat Material / Electrical Connection - NBR / Stainless Steel / Terminal Box
- Voltage / Frequency - 110 V / UC
305 795
- Circuit Function - 3/2-Way Valve, Direct-Acting, When De-Energised Port A Exhausted
- Orifice - 2 mm
- Seal Material / Housing or Seat Material / Electrical Connection - NBR / Stainless Steel / Terminal Box
- Voltage / Frequency - 110 V / UC
305 853
- Circuit Function - 3/2-Way Valve, Direct-Acting, When De-Energised Port A Exhausted
- Orifice - 3 mm
- Seal Material / Housing or Seat Material / Electrical Connection - NBR / Brass / Cable
- Voltage / Frequency - 230 V Response, 240 V / UC
305 857
- Circuit Function - 3/2-Way Valve, Direct-Acting, When De-Energised Port A Exhausted
- Orifice - 3 mm
- Seal Material / Housing or Seat Material / Electrical Connection - NBR / Brass / Cable
- Voltage / Frequency - 24 V / UC
1 - 12 of 34 Part Numbers
Specifications
Actuator Type
- Direct-Acting
Ambient Temperature Range
- Maximum
Approvals & Certifications
- EAC
- EPS 16-ATEX-1 111 X, II 2 G Ex Mb IIC T4 Gb, II 2 D EX Mb IIIC T130° Db
- FDA
- IECEx EPS 16.0049X, II 2 G Ex Mb IIC T4 Gb, II 2 D EX Mb IIIC T130° Db
- NAMUR
Consumption
- Power Consumption (Inrush): 40 W
- Power Consumption (Operation): 3 W
Cycling Rate
- Variant 1: Max.
- Variant 2: Max.
Duty Cycle
- 100%
Electrical Connectors
- Cable Gland: 1/2”-14 NPT
- Cable Gland: M20 x 1.5
- Moulded Cable
- Terminal Box without Safety Fuse
Electrical Contacts
- Normally Closed
- Normally Open
Enclosure, Body Material
- 316 Stainless Steel, 1.4401
- Brass
- Metal
- PEEK
- Plastic
- Polypropylene (PP)
- PVDF (Polyvinylfluoride)
Environmental Protection
- Explosion-proof
- IP65
- IP66
- IP67
- NEMA 250 4X
- Vibration-Proof
Flow Rate
- Water: 0.11 to 0.29 Kv (m³/hour) - Metal Body
- Water: 0.13 to 0.40 Kv (m³/hour) - Plastic Body
Insulation
- Coil Insulation Class H
Mounting Position
- Preferably with Actuator Upright
Orifice Size
- 0.078” to 0.157” (2 to 4 mm)
Override
- Manual Override
Pressure Range
- psi: 0 to 232.1 (kPa: 0 to 1,600, bar: 0 to 16) - Metal Body, Plastic Body
- Vacuum - psi: -14.21 to 145 (kPa: -98 to 1,000, bar: -0.98 to 10)
Process Temperature
- 0° to 80° C (32° to 176° F) for Body Material Brass, Stainless Steel or PEEK (NBR), PP or PVDF (NBR, FKM)
- EPDM: -30° to 80° C (-22° to 176° F) for Body Material PP or PVDF
- EPDM: -30° to 90° C (-22° to 194° F) for Body Material Brass, Stainless Steel or PEEK
- FFKM: 5° to 80° C (41° to 176° F) for Body Material PP or PVDF
- FFKM: 5° to 90° C (41° to 194° F) for Body Material Brass, Stainless Steel or PEEK
- FKM: 0° to 90° C (32° to 194° F) for Body Material Brass, Stainless Steel or PEEK
Response Time
- Closing: 40 milliseconds (Pressure Drop 100 to 10 %)
- Opening: 30 milliseconds (Pressure Rise 0 to 90 %)
Seat / Seal Material
- Seal: EPDM (Medium: Alkalis, Acids to Medium Concentrations, Alkaline Washing & Bleaching Lyes)
- Seal: FFKM (Medium: Aggressive Mediums, Hot Air, Hot Oils)
- Seal: FKM (Medium: Oxydizing Acids & Substances, Hot Oils with Additives, Salt Solutions, Waste Gases, Oxygen)
- Seal: NBR (Medium: Neutral Medium Such as Compressed Air, Town Gas, Water, Hydraulic Oil, Oils & Greases without Additives, Oxygen)
Solenoid Type
- 2/2-Way
- 3/2-Way
Tolerance
- Voltage Tolerance: ± 10 %
Viscosity
- Maximum
Voltage
- 24-230 V (AC/DC)