I’ve just installed my controller, I think all my installation pipework is correct, but the controller won’t achieve my desired pressure?
Main reason is usually the actuator has been set wrong, try re-installing the actuator giving more care to the required settings. Is the 3-way safety tee handle pointing to the green control pipe, if it’s to the red pipe then you are bypassing the controller, make sure the handle is pointing to the green side.
I’ve checked all the above points, but it still won’t achieve the correct pressure?
If the inlet pressure exceeds 95m (9.5bar) then use the non-standard installation diagram. Can the pressures be achieved by removing the actuator and using the original adjusting screw on the PRV , if they can’t there is a fault on your PRV , not the controller.
My controller has been working fine and suddenly stopped regulating the pressure, everything seems ok with the controller?
If no network conditions have changed it could be a fault on the controller. Place the controller in “Manual” mode and make it try and achieve a high or low pressure. You should be able to hear the solenoids clicking (or place your hand on the solenoid box and feel the vibration) which means the controller is trying to work. If this is not present your controller will need servicing.
What flow signal can the controller use?
Our standard controller uses a pulse signal (volt free). If 4-20ma flow signal is required we have the facility to enable this feature, but will need specifying on order.
We have a PRV with pressures exceeding 200m (20bar), can we use your controller?
Yes, but remember our standard controller comes with pressure transducers of 130m (13bar) on the outlet and 170m (17bar) on the inlet. If you require pressures to be controlled and monitored in excess of these values you must specify on order.
The actuator you supplied does not fit our PRV pilot?
As long as the PRV is a pilot operating PRV , just tell use the current pilot adjusting screw thread size and we can swap our standard thread size (3/8 th whitworth) for your required size.
