3321 Electromotive Process Valve

Brand: Burkert Fluid Control Systems

The innovative Bürkert process On/Off valve, Type 3321, is the solution when it comes to shut-off tasks under demanding operating conditions.

The electromotive actuator with ball screw positions moves the swivel plate at a particularly high rate of 6 mm/s to its desired end position. Thereby it reacts reacts almost instantaneously to process signals. If necessary, the safety position can be approached by an optional energy storage in case of power failure.

The actuator and shut-off globe valve are adapted perfectly to each other with closed design and robust surface. This ensures the hygienic requirements of a fast and residue-free cleaning. 

Harsh environments are no problem for the Type 3321 because of the protection class IP65 / IP67 and its high impact and vibration resistance.

Unrivalled cycle life and sealing integrity is guaranteed by the proven self adjusting spindle packing with exchangeable V-seals. 

The fieldbus suitable for Type 3321 provides many helpful functions for process monitoring, valve diagnostics and predictive maintenance and thus offers the decisive advantage of a modern process automation.

Features

  • Safety position via energy storage
  • Rapid flow shut off
  • Weather and impact resistant design
  • Hygienically designed surface
  • Versatile diagnostic options

Specifications

Seal Material

  • EPDM

Spindle Material

  • AISI 316 Stainless Steel, 1.4401
  • AISI 316L Stainless Steel, 1.4401

Enclosure, Body Material

  • Actuator: Aluminum Powder-Coated
  • Valve: AISI 316L Stainless Steel

Nominal Diameter

  • DN 15 to DN 100, NPS 1/2 to NPS 4 (Port Connection)

Operating Pressure

  • -0.9 to 25 bar

Nominal Pressure

  • PN 25 (DIN EN 1333), Class 150 (DIN EN 1759)

Travel Speed

  • 3 to 6 mm/sec

Operating Voltage

  • 24 Vdc ± 10 %

Approvals & Certifications

  • FDA
  • ATEX/IECEx
  • cULus
  • USP
  • TA Luft

Ambient Temperature

  • -25° to 65° C (-13° to 149° F)

Standby Consumption

  • 2-4 W

Communication

  • Bürkert System Bus (büS) (standard)
  • EtherNet/IP
  • PROFINET
  • Modbus/TCP
  • EtherCAT
  • CANopen (optional)

Media

  • Steam
  • Neutral Gases
  • Water
  • Alcohols
  • Fuels
  • Oils
  • Hydraulic Fluids
  • Organic Solvents
  • Salt Solutions
  • Lyes
  • Oxygen

Medium Temperature

  • -40° to 230° C

Environmental Protection

  • IP65
  • IP67
  • NEMA 4X

Response Time

  • Closing Time: 2.3 to 8.7 seconds

Viscosity

  • 600 mm²/sec, Max.

Duty Cycle

  • 100 % Duty Cycle

Flow Rate

  • 4.7 to 45 m³/hour (Kvs) - Water

Electrical Connection

  • Actuator: Terminal strip with cable bushing, 2 x M20 (only AG2) or 2 x M12 circular plugs, 5-pin and 8-pin
  • Fieldbus Gateway: 2 x M12 circular sockets, 4-pin (only with Industrial Ethernet)
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