AVPQ 4



Self-acting differential pressure and flow controller primarily for use in district heating systems. The controller closes on rising differential pressure or when set max. flow is exceeded.

The controller has a control valve with adjustable flow restrictor, an actuator with two control diaphragms and handle for differential pressure setting.


AVPQ 4

Technical data



Code No.DNkvs
(m3/h)
PN
(bar)
tmax
(°C)
Connection typeInstallation placeSetting typeMin. Dp set
(bar)
Max. Dp set
(bar)
Qnom
(m3/h)

AVPQ 4

003H6547 151.625150Ext. threadFlowAdjustable0.210.86
003H6548 152.525150Ext. threadFlowAdjustable0.211.4
003H6549 15425150Ext. threadFlowAdjustable0.212.2
003H6550 206.325150Ext. threadFlowAdjustable0.213
003H6551 25825150Ext. threadFlowAdjustable0.213.5
003H6552 3212.525150Ext. threadFlowAdjustable0.218
003H6553 401625150Ext. threadFlowAdjustable0.2110
003H6554 502025150Ext. threadFlowAdjustable0.2112
003H6555 151.625150Ext. threadFlowAdjustable0.320.86
003H6556 152.525150Ext. threadFlowAdjustable0.321.4
003H6557 15425150Ext. threadFlowAdjustable0.322.2
003H6558 206.325150Ext. threadFlowAdjustable0.323
003H6559 25825150Ext. threadFlowAdjustable0.323.5
003H6560 3212.525150Ext. threadFlowAdjustable0.328
003H6561 401625150Ext. threadFlowAdjustable0.3210
003H6562 502025150Ext. threadFlowAdjustable0.3212
003H6569 3212.525150FlangeFlowAdjustable0.218
003H6570 402025150FlangeFlowAdjustable0.2110
003H6571 502525150FlangeFlowAdjustable0.2112
003H6572 3212.525150FlangeFlowAdjustable0.328
003H6573 402025150FlangeFlowAdjustable0.3210
003H6574 502525150FlangeFlowAdjustable0.3212
003H6922 150.425150Ext. threadFlowAdjustable0.210.18
003H6923 15125150Ext. threadFlowAdjustable0.210.4
003H6924 150.425150Ext. threadFlowAdjustable0.320.18
003H6925 15125150Ext. threadFlowAdjustable0.320.4