Self-Acting Differential Pressure Relief Controller AVPA

Self-Acting Differential Pressure Relief Controller AVPA DN15-DN50 (PN 16)

The controller has a control valve, an actuator
with one control diaphragm and handle for differential pressure setting.

Features and benefits

AVPA is a self-acting differential pressure relief
controller primarily for use in district heating
systems.

The controller is normally closed and
opens on rising differential pressure.

Self-Acting Differential Pressure Relief Controller AVPA DN15-DN50

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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