Burkert 2/2-Way Proportional Valve, 3285
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278 370

Series: 3285 2/2-Way Proportional Valve Brand: Burkert Fluid Control Systems
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Burkert 2/2-Way Proportional Valve, 3285 Burkert 2/2-Way Proportional Valve, 3285 Burkert 2/2-Way Proportional Valve, 3285
  • Model - Positioner
  • Version - Standard Positioner (4-20 mA Signal)
  • Orifice Size - 8 mm
  • Port Connection - G1/2”
  • Material - Brass

Specifications

Brand

Ambient Temperature Range

  • -10° to 60° C (14° to 140° F)

Applications

  • Flow

Approvals & Certifications

  • cULus Listed
  • UR

BSP Connection

  • G 1" Female
  • G 1/2" Female
  • G 3/4" Female

Communication

  • FOUNDATION Fieldbus

Consumption

  • Power: < 1 W (Holding Position)
  • Power: 12 W, Max.

Cover Material

  • Fluid: Polyphenylene Sulfide (PPS)

Disc Material

  • Control, Fixed Seat: Technical Ceramic

Duty Cycle

  • 100 % Duty Cycle - Depending on Fluid & Ambient Temperature

Electrical Connectors

  • M12 Plug (A-Coded, 8-Pin)
  • Process Controller: M12 Socket (A-Coded, 5-Pin)

Enclosure, Body Material

  • Fluidic: Brass
  • Fluidic: Stainless Steel
  • Polycarbonate (PC)
  • Polyphenylene Sulfide (PPS)

Environmental Protection

  • IP50

Flow Rate

  • 1.8 to 9.6 m³/hour (Kvs) - Water

Frequency

  • Extension Sensor Input (Process Controller Digital): 5 to 2,000 Hz

Hysteresis

  • < 5 %

Indication

  • Status Display: LED

Input

  • Positioner Analog, Process Controller Analog (Setpoint): 0-20 mA
  • Proportional Valve (Setpoint): 800 Hz (PWM)
  • Proportional Valve, Positioner Analog, Process Controller Analog (Setpoint): 0-10 V
  • Proportional Valve, Positioner Analog, Process Controller Analog (Setpoint): 4-20 mA
  • Standard ON/OFF (Setpoint): 10-30 V (Log 1, Valve Open)
  • Standard ON/OFF, Positioner Analog, Process Controller Analog (Setpoint): 0-5 V (Log 0, Valve Closed)

Input Impedance

  • Analog Input (Proportional Valve, Positioner Analog, Process Controller): 60 ohms (Current)
  • Analog Input (Standard ON/OFF, Proportional Valve, Positioner Analog, Process Controller): 22 kΩ (Voltage)

Interface Connection

  • CAN

Media

  • Liquids
  • Neutral Gas

Mounting Position

  • Preferably with Actuator Upright

Nominal Pressure

  • psig: 87 (kPa: 600, bar: 6)

NPT Connection

  • 1" NPT Female
  • 1/2" NPT Female
  • 3/4" NPT Female

O-Ring Material

  • FKM
  • NBR

Operation

  • Electrical Operation
  • Manual Operation

Orifice Size

  • 0.31" to 0.98" (8 to 25 mm)

Output

  • Digital Current Limit (Standard ON/OFF, Proportional Valve): 100 mA - Max.
  • Positioner Analog, Process Controller Analog: 0-20 / 4-20 mA - (560 ohms, Max.)
  • Positioner Analog, Process Controller Analog: 0-5 / 0-10 V - (10 mA - Max.)

Power Supply

  • 24 Vdc ± 10 %, Max.

Pressure Range

  • psi: 0 to 90 (kPa: 0 to 600, bar: 0 to 6)

Process Temperature

  • Fluid: 0° to 70° C (32° to 158° F)

Ratio

  • Span - 1:100

Repeatability

  • < 1 % of Full Scale

Response Time

  • Closure Time: 4 seconds

Seat / Seal Material

  • Seal: EPDM
  • Seal: FKM
  • Seal: NBR
  • Technical Ceramic

Sensitivity

  • < 1 % of Full Scale

Shaft Material

  • Actuator: Stainless Steel

Shaft Seal Material

  • Actuator: FKM
  • Actuator: NBR

Spring Material

  • Stainless Steel

Documentation

Data Sheets

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