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Self-Acting Differential Pressure Relief Controller AFPA

  • Overview
  • Features and benefits
  • Documents
  • Tender text
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Self-Acting Differential Pressure Relief Controller AFPA DN15-DN250

AFPA is a self-acting differential pressure relief controller primarily for use in district heating systems. The
controller opens on rising differential pressure.

Features and benefits

The controller has a control valve (flange connection), an actuator with control diaphragm and a spring for differential pressure setting.

Documents

Documents
Type Name Language Valid for Updated Download File type

Tender text

  • Bypass valve are to be selected on the required bypass flow rate and opening pressure loss
  • The valves shall be capable of the required opening pressure within the published spring range
  • The valves shall be installed with a partner valve to enable bypass flow measurement and flow limiting if necessary
  • The partner valves shall be fixed orifice in DN15-50 and variable orifice in DN50 (high flow) to DN400

 

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