Shanghai Tu-Poly Industrial Co.,Ltd.

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05/06/2026

How do you clean sludge from fish ponds? Hire an excavator or dig manually by hand?

30/05/2026

2.5‘’ 3KW PMVF PUMP MAX HEAD:55M

23/05/2026

6''4KW PMVF PUMPMAX HEAD:1OM

16/05/2026

2inch 3kw PMVF Pump
Max Head：60 meters
Male threaded：flange connection

08/05/2026

Fully stainless steel precision-cast mini booster pump.The precision-cast pump head has an exquisite finish, and both the internal guide vanes and impeller are entirely precision investment cast.

29/04/2026

PMVF pump source factory • Direct delivery to your door
It's 2026, who still uses this bulky water pump? Look at us, this lightweight and practical submersible pump. The whole body is made of stainless steel, it's corrosion-resistant and has a longer lifespan. The motor, we use a permanent magnet variable frequency motor, which is lighter, more power-saving and durable. For example, this eight-inch one can be easily carried by one person. And we are the source manufacturer, and we will deliver it to your home for free. If you want it, please leave a message in the comment. And we will contact you ASAP.

24/04/2026

2.5-inch 3kW permanent magnet variable frequency pump, maximum head: 55m
What kind of water pump can spray so far?
It is our 2.5-inch 3kW permanent magnet variable frequency pump.
Equipped with double impellers, this pump features a maximum lift of 55 meters and a maximum flow rate of 49 cubic meters per hour. The whole machine weighs only 28kg, which is lightweight and easy to handle.
It delivers genuine high head and large flow performance.
This model is available in both 220V and 380V voltage options.

11/04/2026

Micro-inverter snow removal technology

28/03/2026

Hermatically Sealed Inverter Waterproof and Dustproof Water Jet Test

13/03/2026

Hi everyone! A customer just sent us a photo of our microinverter asking: "Why is the LED not lighting up during installation? And why is it showing red when it does light up?"

Great question! Let me break this down for you.

The LED indicator on our microinverter tells you everything about its status.

If you see a red light—either blinking or solid—that usually means one of three things:

Solar panels are connected but there's no grid connection

Or the device hasn't been added to the APP yet

Here's the key: Red light = Not connected to the grid yet

When everything is working properly—solar panels connected, grid connected, and device added to the APP—you'll see a blue light (blinking or solid).

So if your inverter shows red, don't worry! Just check your grid connection and APP setup. Once both are good, that blue light will appear and your system is running normally!

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