What is the opening force required for these valves

It isn't very much. I used one to replace the check valve in my door drain in my walk-in tub which would only have at worst a 3 -4 inches of standing water in the tube and It allowed the water to pass.

Will this work if tubing is laid sideways?

Yes it will work in any position.

Where do I put this on a portable a/c condensation line. Close to the unit or down the line further. It will be on a 10 ft clear flexible tubing?

If you using a condensate pump put it as close to the pump as you can. If you not using a pump and using gravity draining you don't need it.

Can this be used on a submersible 600gph water pump for the basement?

Check valves of this size are meant for use in smaller capacity pumps such as condensate pumps for air conditioners or dehumidifiers. Not for basement pumps.

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Quickun 3/8" Barb Hose One Way Inline Check Valve Non Return Ozone Resistance PVDF Plastic One-Way Fuel Oil Water Gas Pump Air Check Valve, 2 Pcs

Quickun 3/8" Barb Hose One Way Inline Check Valve Non Return Ozone Resistance PVDF Plastic One-Way Fuel Oil Water Gas Pump Air Check Valve, 2 Pcs

Product ID: 216534139

Details

Brand
Quickun
Exterior Finish
Plastic Rubber
Inlet Connection Size
0.38 Inches
Inlet Connection Type
Barb
Material
Plastic Rubber
Number of Ports
1

⚙️3/8" barb fits standard hoses

🌡️Operates reliably 25°C to 60°C

🛡️PVDF shell resists acid & corrosion

€ 8.93

Duties & taxes included

In stock

Sold byAmazon IrelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Stop Backflow, Start Flowing: The Valve That Means Business

TRUSTED BY PROS - Ranked #8 in Check Valves with over 1,000 positive reviews—join the savvy users who demand quality
COMPACT POWERHOUSE - At just 43mm length, it fits tight spaces without compromising on reliability
VERSATILE FLOW CONTROL - One-way valve prevents backflow in fuel, water, gas, and air systems—keeping your setup safe and efficient
PRECISION FIT ZERO LEAK - 3/8" barb design ensures seamless hose connection for flawless fluid control
BUILT TO BRAVE THE ELEMENTS - Durable PVDF plastic shell resists ozone, acid, alkali, and salt corrosion for long-lasting performance

The Quickun 3/8" Barb Hose One Way Inline Check Valve features a robust PVDF plastic shell and silicon rubber diaphragm, designed to prevent reverse fluid or air flow in various systems. With strong resistance to ozone, acid, alkali, and salt corrosion, it operates reliably between 25°C and 60°C. Compact and easy to install, this valve fits standard 3/8" hoses and is highly rated for industrial and scientific applications.

Specifications

ASIN	B087PDJ82Z
Best Sellers Rank	#12,222 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Check Valves
Brand Name	Quickun
Connector Type	Slip
Customer Reviews	4.1 4.1 out of 5 stars (1,017)
Exterior Finish	Plastic,Rubber
Inlet Connection Size	0.38 Inches
Inlet Connection Type	Barb
Manufacturer	Quickun
Manufacturer Part Number	1-2130-valve-2new
Material Type	Plastic, Rubber
Model Number	2.00
Number of Pieces	2
Number of Ports	1
Outlet Connection Size	0.38 Inches
Outlet Connection Type	Barb
Size	3/8 Inch
Specification Met	ASME B16.5
Thread Size	3/8 inches
Unit Count	2.0 Count
Valve Type	check valve

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