Introduction
I am doing home automation. I have learnt how to use relay, solenoid, and solenoid valve. I just found that I need to use a pump to work with the solenoid. So I am starting this new topic, ...
/ to continue, ...
Old Water Pump Posts to Refresh Memory
12VDC Water Pump
https://www.raspberrypi.org/forums/view ... 6#p1377308
https://www.raspberrypi.org/forums/view ... 6#p1381265
https://www.raspberrypi.org/forums/view ... 6#p1381664
SP20/20 12VDC Water Circulation Pump - £26
http://shop.solarproject.co.uk/catalog/ ... 4191d225f1
220VAC Water Pump
https://www.raspberrypi.org/forums/view ... 0#p1376178
https://www.raspberrypi.org/forums/view ... 0#p1374955
https://www.raspberrypi.org/forums/view ... 0#p1368636
Old post on WS122 12VDC Water Pump
https://www.raspberrypi.org/forums/view ... 4#p1419081
Water Pump DIY
Last edited by tlfong01 on Wed Feb 06, 2019 3:28 am, edited 2 times in total.
I am an electronics and smart home hobbyist.
Re: Cat Home DIY Q&A - Water Pump How To
12VDC Water Pump Testing Notes
Now I am going to test the water pump I bought from TaoBao.
AliExpress DC 12V Solar Hot Water Circulation Pump Brushless Motor Water Pump 3M US$14
https://www.aliexpress.com/item/New-DC- ... 6bfc9e89fd
SP20/20 12VDC Water Circulation Pump - £26
http://shop.solarproject.co.uk/catalog/ ... 4191d225f1
TaoBao Medical Drinking Pressure Circulation Brushless DC Motor Silent Magnetic Water Pump ¥80-160
https://item.taobao.com/item.htm?_u=f3t ... 6993226670
Description:
DC 12V Hot/Cooling Water Circulation pump
Not for high pressure?
Features:
The pump is perfect for the family home thermal solar systems or any circulation pump application where conventionalpower is not available.
Horizontal inlet and outlet with rotatable cap, easy installation. Max operating temperature up to 100°C with External circulating water flow.
Super long working life.low consumption & low noise. Amphibious design.Submersible installation and entirely waterproof.
Inlet/Outlet: 1/2" male thead
Voltage: 12V DC
Maximum Rated Current: 500MA
Max Flow Rate: 6.5 L/Min
Max Water Head: 3 metre
Max system pressure: 10Bar
Max circulating water temperature: 100°C
Low noise: 30db at 1 metre
I am an electronics and smart home hobbyist.
Re: Cat Home DIY Q&A - Water Pump How To
tlfong01 wrote: ↑Tue Jan 22, 2019 8:33 amNow I am going to test the water pump I bought from TaoBao.
TaoBao Medical Drinking Pressure Circulation Brushless DC Motor Silent Magnetic Water Pump ¥80-160[/i]
https://item.taobao.com/item.htm?_u=f3t ... 6993226670
DC 12V Hot/Cooling Water Circulation pump Not for pressure boosting?
Inlet/Outlet: 1/2" male thead
Voltage: 12V DC
Maximum Rated Current: 500mA
Max Flow Rate: 6.5 L/Min
Max Water Head: 3 metre
Max system pressure: 10Bar
Testing WS122 Water Pump for Pressure Boosting
Spec says that the BLDC motor is wide voltage supply range, so I am also testing if I can adjust head by voltage.
Nanking Gospel Electronics WS122 Water Pump
https://item.taobao.com/item.htm?_u=f3t ... 6993226670
Application
For medical and drinking fountain, hot water circulation and booster BLDC low noise suction pump - 12V 3M ¥80, 24V 6M ¥85
Spec
12V V3 3M (not suitable for pressure boosting, suitable for circulation)
DC12V, 700mA max, 8L/min, head 3M
24V V6 6M
DC24V, 800mA max, 12L/min, head 6M
Working Life
1. 4.5 years - 100 degree C boiling water 24x7 non stop operation
2. 22 years - daily run 5 hours
3. 10 hours no water run 10 hours without damage (conventional pumps dry run 1 hour would be damaged).
Structure
Using electronic polarity changing, no carbon contact, high ? creamic shaft and shaft sleeve, one body magnet prevents ?, separate rotator and stator, epoxy filled, high precision, good shock absorption, 100% water proof, permanent magnet, low noise, small size, stable performance, wide operatiing voltage range
Advantage
logn life, low noise (< 35dB, low power models < 30dB), suitable for hot water circulation.
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I am an electronics and smart home hobbyist.
Re: Cat Home DIY Q&A - Water Pump How To
I am an electronics and smart home hobbyist.
Re: Cat Home DIY Q&A - Water Pump How To
tlfong01 wrote: ↑Wed Jan 30, 2019 1:02 pmWater Features Water Pipe Resizing Notes
https://penzu.com/p/15e2e114
Rooftop Garden and Home Water Pressure Learning Notes
I know nothing of the water pressure at home, and rooftop where I am building a smart garden. So I googled.
Now I know it is about 40 to 60psi.
I am thinking a buying a cheap cheap water pressure gauge, so that I can measure the performance of the water pump and water valve used in my musical fountain / water feature project.
My googled readings are jotted down in the penzu journal entry below.
Household Water Pressure, Water Gauge Shopping List (penzu)
https://penzu.com/p/a19510cf
I am an electronics and smart home hobbyist.
Re: Cat Home DIY Q&A - Water Pump How To
Water Pressure Meter
Now I have bought a water meter to check out how the booster pump is doing.
https://penzu.com/p/d3890d4d
It took me almost an hour to do the amateurish plumbing work of putting the pressure meter on the piping. Then I turned on the tap to find that the pressure in my home
is 20 something.
But I don't what 20 stands for. Is it mPa or PSI?
I need to google again.

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I am an electronics and smart home hobbyist.