I didn't see +/- labeled on the terminals. Does it matter which way it is hooked up?

I would assume it matters, however it is not labeled. I stuck a 9volt battery to mine to test it and it worked both ways. I assume it can be used in a negative voltage system so it might not matter. Typically if they are not labeled one terminal is smaller or larger than the other, the one I got was exactly the same. Mine has been working for about a 8 months now with no issues the way I connected it.

Is this food safe product ? Can it be used with hot drinking water ?

It is food grade, and it work with 0-80C.Thank you!

.8mpa is around 8 atm or 115ish psi, correct? my water pressure runs up to around 105psig at times. i have a big regulator, should i install it first?

Yes, just over 115psi. The water pressure is around 60psi where I'm using this valve, and I've no problems over the past 1+ years. With the rating at 116psi, you should be okay assuming the supplier has a safety margin on that rating, which they should. If you are going to install a regulator, I would probably install it first though.

5 sec open 5 min closed repeat for 12 to 18 hours a day?

You can put a timer on for any periods you want. There may be a 1/4 second delay from the time that power is applied until the switch actually opens, but that is just a guess. Just be aware that I replace my switch every 8-12 months, where the switch is open for 20 minutes, twice a day. I have also taken it apart and cleaned it a few times as well. The internal mechanics are simple, but I suspect the rubber may be not the best quality. For the price, it does okay.

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DC 12V 1/4" Inlet Feed Water Solenoid Valve Quick Connect N/C normally Closed

Product ID: 20417895

Details

Brand
DIGITEN
Exterior Finish
Plastic
Inlet Connection Size
0.25 inches
Inlet Connection Type
National Pipe
Item dimensions L x W x H
2.4 x 0.91 x
Material
Polypropylene

⚡DC 12V power for efficient control

💧1/4" quick-connect inlet for seamless installation

🔥Operates safely up to 60℃ working temperature

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Description

💧 Control your flow, own your system — smart water management made simple!

QUICK CONNECT DESIGN - 1/4" NPT inlet/outlet ensures fast, secure installation without leaks or downtime.
ENERGY EFFICIENT SAFE - Low 4.8W power consumption at safe DC 12V voltage minimizes energy use and maximizes safety.
PRECISION WATER CONTROL - Automatically starts and stops water flow with system activation for hassle-free irrigation or filtration.
DURABLE HEAT RESISTANT BUILD - High-temp plastic parts withstand up to 150℃, ensuring long-lasting reliability under pressure.
OPTIMIZED FOR REVERSE OSMOSIS - Food-grade materials make it ideal for clean water systems, supporting your health-conscious lifestyle.

The DIGITEN DC 12V 1/4" Quick Connect Solenoid Valve is a normally closed valve designed for precise water control in irrigation and reverse osmosis systems. It operates safely within 0.02-0.8Mpa pressure and up to 60℃, featuring durable, heat-resistant plastic components. Its quick-connect 1/4" NPT fittings enable easy installation, while the low 4.8W power rating ensures energy-efficient operation. Ideal for professionals seeking reliable, automated water management solutions.

Specifications

ASIN	B016MP1HX0
Best Sellers Rank	#28,107 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Solenoid Valves
Brand	DIGITEN
Brand Name	DIGITEN
Customer Reviews	4.2 out of 5 stars 524 Reviews
Exterior Finish	Plastic
Inlet Connection Size	0.25 inches
Inlet Connection Type	National Pipe Tapered
Item Dimensions	2.4 x 0.91 x 0.71 inches
Item Weight	0.27 g
Item dimensions L x W x H	2.4 x 0.91 x 0.71 inches
Manufacturer	DIGITEN
Manufacturer Part Number	ROCON-341
Material	Polypropylene (PP)
Material Type	Polypropylene (PP)
Maximum Operating Pressure	800 hectopascal
Model Number	ROCON-341
Number of Items	1
Number of Pieces	1
Number of Ports	1
Outlet Connection Size	0.25 inches
Outlet Connection Type	National Pipe Tapered
Size	0.02-0.8Mpa
Thread Size	1/4" NPT
Thread Type	NPT
UPC	600748801176
Unit Count	1 Count
Valve Type	solenoid valve

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$16.63

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

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TrustScore 4.5 | 7,300+ reviews

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