Would this valve be effective in a air/vapor system?

yes, the valve can works in air system

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

This is a small check valve used for something like allowing a vacuum to be pulled in a single direction. It would not be appropriate for use with a fluid pump unless it is simply being used as part of a venting system to remove air from the pump prior to use.

Do you install before fuel pump or close to carburetor

Hi, it depends on your application, it usually installs close to the tank but you can put it closer to the fuel pump if you want. in any event it goes before the fuel pump as your trying to stop flow back.

Will this fit to Mazda Protege 2.0? Reference: 8574-20-309

This check valve will fit any 1/4 or 6mm fuel line.

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EVIL ENERGY 1/4" Fuel Check Valve One Way Inline Non Return, Silver 6mm OD

EVIL ENERGY 1/4" Fuel Check Valve One Way Inline Non Return, Silver 6mm OD

Product ID: 404144260

Details

Brand
EVIL ENERGY
Exterior Finish
Silver
Inlet Connection Size
0.25 Inches
Inlet Connection Type
Flange
Material
Aluminium
Maximum Operating Pressure
6 Bars

💨Stainless steel spring ensures one-way fuel flow

⚙️6061-T6 aluminum alloy for ultimate durability

🌡️Operates reliably from -22℉ to 266℉

R1006

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Description

🔥 Keep your fuel flow flawless, no backflow allowed! ⚡

VERSATILE COMPATIBILITY - Perfect for carburetors and low-pressure fuel systems, compatible with petrol, diesel, water, gas, and oil (just skip methanol).
WIDE OPERATING TEMPERATURE RANGE - From freezing cold to scorching heat, this valve performs flawlessly in any environment.
COMPACT HASSLE FREE INSTALLATION - Lightweight design with barb inlet/outlet for quick, tool-free setup—get back on the road faster.
BUILT TO LAST WITH AEROSPACE GRADE ALUMINUM - Premium 6061-T6 alloy with black anodized finish resists corrosion and wear, keeping your fuel system flawless.
PRECISION FLOW CONTROL WITH STAINLESS STEEL SPRING - Engineered to prevent backflow, maintaining stable pressure and peak engine performance.

The EVIL ENERGY 1/4" Fuel Check Valve is a high-performance inline non-return valve crafted from durable 6061-T6 aluminum alloy with a corrosion-resistant anodized finish. Featuring a stainless steel spring, it ensures one-way fuel flow to prevent backflow and maintain system pressure. Designed for a wide operating temperature range (-22℉ to 266℉) and pressures up to 6 bar, it’s ideal for carburetor and low-pressure fuel systems compatible with multiple fluids including petrol, diesel, and oil.

Specifications

Asin	B085G7JVSM
Best Sellers Rank	#300,660 in Car & Motorbike (See Top 100 in Car & Motorbike)
Brand Name	EVIL ENERGY
Customer Reviews	4.5 4.5 out of 5 stars (2,937) 4.5 out of 5 stars
Exterior Finish	Silver
Inlet Connection Size	0.25 Inches
Inlet Connection Type	Flange
Item Type Name	check valve
Manufacturer	Speedwow Tuning
Manufacturer Part Number	EV01342S6SRCA1
Material Type	Aluminium
Maximum Pressure	6 Bars
Model Number	EVFS01272S6BK
Number Of Items	2
Number Of Pieces	2
Number Of Ports	2
Outlet Connection Size	0.25 Inches
Outlet Connection Type	NPT
Size	1/4
Specification Met	CE
Thread Size	1/4 inch
Thread Type	NPT
Unit Count	2 Count
Valve Type	Fuel Check Valve

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R1006

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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