Pump Automatic pressure control installation problem
Pump Automatic pressure control installation problem
(OP)
Hello all,
I have an inquiry regarding the Automatic pressure control DSK-8 (The yellow one(. (Check the pics below)
It does not work properly.
If I close the inlet valve, the device does not switch off the pump.
If I close the outlet valve, the device does not switch off the pump.
It was installed in a horizontal position instead of a vertical position.
Would you please tell me what could be wrong and how to fix it?
The device

Installation

Best Regards
I have an inquiry regarding the Automatic pressure control DSK-8 (The yellow one(. (Check the pics below)
It does not work properly.
If I close the inlet valve, the device does not switch off the pump.
If I close the outlet valve, the device does not switch off the pump.
It was installed in a horizontal position instead of a vertical position.
Would you please tell me what could be wrong and how to fix it?
The device

Installation

Best Regards





RE: Pump Automatic pressure control installation problem
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: Pump Automatic pressure control installation problem
Do you mean that the problem is not that the device installed horizontally?
RE: Pump Automatic pressure control installation problem
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: Pump Automatic pressure control installation problem
The unit only connects directly to small pumps. I suspect the green wires coming from the pressure guage have something to do with this problem.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Pump Automatic pressure control installation problem
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: Pump Automatic pressure control installation problem
Sorry, what I meant was the curious thing at the tee between pump and pressure bladder - looks like some sort of pressure switch with a guage on top - those look like some pretty thick wires coming from it ( but on looking very closely it might just be another hose??). The data from the unit says that it can only directly connect small pumps - hence needs to go via some sort of relay.
ninjako - how much time did you give the switch to do its job??? The white tank will provide flow and pressure for a while when the pump inlet is switched off and will also take flow from the pump whilst the pressure is low before the device will see a rise in pressure sufficient to turn the pump off.
Please also add what pressures everything is set at and what pressure and flow did you see during this "test".
Depending on volume, pressure and flow, this could take a few minutes or even up to 10 minutes before anything happens.
I really can't see orientation being an issue for a unit like this.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Pump Automatic pressure control installation problem
Out of interest what is that horrible looking arrangement located directly on the pump discharge, get rid of it and rearrange the flow unit and pressure tank into their correct positions.
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: Pump Automatic pressure control installation problem
RE: Pump Automatic pressure control installation problem
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: Pump Automatic pressure control installation problem
Please excuse my terminology because I am not a mechanical or electrical engineer. (Please correct me if I use wrong terms).
LittleInch, the thick wires are another pipe line not related to my pump. (Sorry for bad angle).
Artisi, 1- The thing just above the pump is an old pressure switch (another type). 2-I agree that the pressure tank should be after the device because it keeps the water flowing inside the device and hence, keeps pump running for a longer time.
Compositepro, the start pressure for the device is 2.2 bars while the pump provided a higher pressure (7.5 bars).
Regarding the electrics:
The device came with the wires already connected to it. I made a "splice" to connect to the wires to the main line and the pump. I double checked that the wiring is done correctly.
Regarding the pluming:
I checked the device. There is a metal piece at the outlet valve that moves if I turn the device upside down. I blew air from the inlet (while the device was in a proper position like the 1st pic in the original post) and the piece of metal moved up and back again when I stopped.
So I thought this piece of metal is a part of the device's non-return valve which depends on gravity.
I rearranged everything like the below pic following everyone's advice and now the device is working correctly.
I have a last question, what is the max number of working hours for a pump per day?
RE: Pump Automatic pressure control installation problem
Although I wouldn't think you will run continuously 24hrs / day--for applications like you are showing, the limiting factor is the number of starts the motor does per hour.
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)