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APU-XP Automatic Pump Unit
Williams Automatic Pump Unit, APU-XP

APU-XP Automatic Pump Unit

Brand: Williams Chemical Metering Pumps
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The APU series automatic processing unit is designed to automate pneumatic metering pumps. The APU accepts a linear 4-20 mA signal from a process flow meter and operates a pneumatic metering pump to operate proportional to the input signal. This is accomplished by the use of a normally closed, 3-way.
Features
  • Explosion Proof Class I, Groups B, C, D Class II, Groups E, F, G Class III CENELEC: EExd IIC, IP66
  • Weatherproof Enclosure NEMA 4, 7BCD, 9EFG
  • Corrosion resistant, powdercoat finish
  • Provides pulse rate output proportional to a process signal
  • Reduced chemical usage by operating proportional to the process flow
  • Compact unit, ideal for offshore and plant installations
  • Exterior mounting lugs for easy installation

Specifications

Brand

Approvals & Certifications

  • ATEX
  • CENELEC: EExd IIC

Environmental Protection

  • CENELEC: IP66
  • NEMA 4
  • NEMA 7 B, C & D
  • NEMA 9EFG

Power Supply

  • 12 Vdc
  • 120 Vac
  • 220 Vac
  • 24 Vdc

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