2871 2/2-Way Solenoid Control Valve

Brand: Burkert Fluid Control Systems
Does not ship to United States

The direct-acting solenoid control valve Type 2871 (20 mm installation width) is used as the regulating unit in control loops.

Due to an elastomeric seat seal the valve closes tight (integrated shut-off function) ,up to the DN specific nominal pressure. The plunger of the valve is assembled frictionless, which leads to an extraordinary adjustment characteristic.

This valve is particularly suitable for demanding control tasks (high control range, dry gases, etc.). Valve control takes place through a PWM signal. The duty cycle of the PWM signal determines the coil current and hence the position of the plunger.

Optionally the valve can also be driven with DC voltage.
Features
  • Excellent range (1:200)
  • Very good response
  • Compact valve design
  • Port connection 1/8” or sub-base

Specifications

Ambient Temperature Range

  • 55° C (131° F) - Max.

Approvals & Certifications

  • DVGW
  • UL
  • UR

BSP Connection

  • G 1/8” Female

Consumption

  • Power: 2 W (up to DN 0.6)
  • Power: 5 W (From DN 0.8)

Current

  • Maximum

Differential Pressure

  • psi: 0 to 145 (kPa: 0 to 1,000, bar: 0 to 10) - Max.

Duty Cycle

  • 100 % Duty Cycle Continuous Rating

Electrical Connectors

  • Cable Plug Typical 2507
  • Lead Wires 300 mm

Electrical Contacts

  • Normally Closed

Enclosure, Body Material

  • Brass
  • Stainless Steel

Environmental Protection

  • IP65

Flow Rate

  • Water: 0 to 0.090 Kvs (m³/hour)

Frequency

  • PWM Frequency: 1,500 Hz

Hysteresis

  • < 5 %

Media

  • Neutral Gases & Liquids

Mounting Position

  • Preferably with Actuator Upright

Nominal Pressure

  • psi: 0 to 174 (kPa: 0 to 1,200, bar: 0 to 12)

NPT Connection

  • 1/8” NPT Female

Orifice Size

  • 0.001” to 0.944” (0.05 to 2 mm)

Power Supply

  • 24 Vdc

Pressure Range

  • psi: 0 to 174 (kPa: 0 to 1,200, bar: 0 to 12) Applicable for Technical Vacuum

Process Temperature

  • -10° to 90° C (14° to 194° F)

Ratio

  • Span - 1:200 (DN0.8 to 2)
  • Span - 1:500 (DN0.05 to 0.6)

Repeatability

  • Flow Measurement: < 0.25 % of Full Scale

Response Time

  • < 15 milliseconds at (10-90 %)

Seat / Seal Material

  • PCTFE
  • Seal: EPDM
  • Seal: FFKM
  • Seal: FKM

Sensitivity

  • Flow Measurement: < 0.1 % to < 0.25 % of Full Scale

Solenoid Type

  • 2/2-Way

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