AFA



A self-acting pressure relief controller primarily for use in district heating systems. The controller opens on rising pressure.

Controller consist of:
- control valve (flange connection) type VFG 2 / VFG 21 - for technical parameters look at part "Combine with..." below,
- pressure actuator type AFA with control diaphragm and a spring for pressure setting - see below.


AFA

Technical data



Code No.tmax
(°C)
FunctionSetting typeMin. P setting
(bar)
Max. P setting
(bar)
Max. operation pressure
(bar)

AFA

003G1007 150Press. relief controllerAdjustable101625
003G1008 150Press. relief controllerAdjustable31125
003G1009 150Press. relief controllerAdjustable1525
003G1010 150Press. relief controllerAdjustable0.52.525
003G1011 150Press. relief controllerAdjustable0.151.225
003G1012 150Press. relief controllerAdjustable0.10.625
003G1013 150Press. relief controllerAdjustable0.050.3516