--- product_id: 404144260 title: "1/4\" 6mm Non Return One Way Check Valve for Fuel Line Oil Petrol Diesel Aluminium Silver Pack of 2" brand: "evil energy" price: "₨16825" currency: LKR in_stock: true reviews_count: 5 category: "Evil Energy" url: https://www.desertcart.lk/products/404144260-1-4-6mm-non-return-one-way-check-valve-fuel store_origin: LK region: Sri Lanka --- # 6 bar max working pressure 6mm (1/4") precision fit -22℉ to 266℉ wide temp range 1/4" 6mm Non Return One Way Check Valve for Fuel Line Oil Petrol Diesel Aluminium Silver Pack of 2 **Brand:** evil energy **Price:** ₨16825 **Availability:** ✅ In Stock ## Summary > ⛽ Keep your fuel flow flawless — no backflow, no compromises! ## Quick Answers - **What is this?** 1/4" 6mm Non Return One Way Check Valve for Fuel Line Oil Petrol Diesel Aluminium Silver Pack of 2 by evil energy - **How much does it cost?** ₨16825 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/404144260-1-4-6mm-non-return-one-way-check-valve-fuel) ## Best For - evil energy enthusiasts ## Why This Product - Trusted evil energy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Weather Durability:** Performs flawlessly from freezing -22℉ to scorching 266℉, perfect for any climate. - • **One-Way Flow Assurance:** Stainless steel spring mechanism prevents fuel backflow, optimizing engine start-up and performance. - • **Premium Aluminum Build:** Crafted from high-strength 6061-T6 aluminum with black anodized finish for superior corrosion resistance. - • **Precision Engineered Fit:** Seamlessly integrates with standard 1/4" fuel lines for hassle-free installation. - • **Robust Pressure Handling:** Operates reliably up to 6 bar (87 psi) ensuring stable fuel flow under demanding conditions. ## Overview The EVIL ENERGY 1/4" (6mm) Non Return Check Valve is a high-performance fuel system component designed to prevent backflow and maintain stable pressure. Made from durable 6061-T6 aluminum with a corrosion-resistant anodized finish, it supports pressures up to 6 bar and operates across a wide temperature range (-22℉ to 266℉). Ideal for carburetor and low-pressure fuel systems, this compact valve ensures reliable, efficient fuel delivery for petrol, diesel, oil, and more. ## Description EVIL ENERGY is our brand, we're a direct and professional manufacturer, one of greatest manufacturer and exporter in tuning parts include intake system, exhaust system, fuel system, cooling system, interior and exterior parts. Check valves are suitable for carburetor and low pressure fuel systems. The main function of the check valve in the system is to prevent backflow and keeping it in the line. It can greatly solve the problem of slow starting vehicles. Review: Quality and correctly sized - Nice construction, used for pond water feature rather than fuel so s tad over engineered for the purpose but I like that. Good fit well made. Review: Pesimo - Pesima calidad, no es de la medida que describe (mas chica) y no soporta mas de 5 psi de presión, no lo puedo devolver porque ya lo use! ## Features - Specifications: 1/4 inch (6 mm) OD. Minimum upstream pressure: 0.2 bar (2.9 psi). Working pressure range: 0.2–6 bar (2.9–87 psi). Operating temperature range: -22℉ to 266℉ for reliable performance in various conditions. - Material: Made of high-strength 6061-T6 aluminum alloy, the check valve is black anodized for enhanced corrosion and wear resistance. - Feature: This EVIL ENERGY fuel line check valve is equipped with a stainless steel spring that allows fluid to flow in only one direction, effectively preventing fuel backflow and maintaining stable system pressure. - Installation: The one way valve is compact and lightweight with barb inlet/outlet for quick, hassle-free setup in fuel lines. - Application: The EVIL ENERGY fuel check valve is widely used in carburetor and low-pressure fuel systems. It is compatible with various media such as water, petrol, diesel, gas, oil, air, and other fluids.(Methanol is not recommended) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B085G7JVSM | | Best Sellers Rank | #194,104 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #48,761 in Car Parts | | Brand | EVIL ENERGY | | Brand Name | EVIL ENERGY | | Country of Publication | USA | | Customer Reviews | 4.5 out of 5 stars 2,831 Reviews | | 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 | Aluminium | | Material Type | Aluminium | | Maximum Pressure | 6 Bars | | Model Number | EVFS01272S6BK | | 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 | ## Product Details - **Material:** Aluminium - **Brand:** EVIL ENERGY - **Exterior Finish:** Silver - **Inlet Connection Size:** 0.25 Inches - **Inlet Connection Type:** Flange - **Outlet Connection Type:** NPT - **Maximum Operating Pressure:** 6 Bars - **Number of Ports:** 2 - **Specification Met:** CE - **Valve Type:** Fuel Check Valve ## Images ![1/4" 6mm Non Return One Way Check Valve for Fuel Line Oil Petrol Diesel Aluminium Silver Pack of 2 - Image 1](https://m.media-amazon.com/images/I/61zXc2qgIxL.jpg) ![1/4" 6mm Non Return One Way Check Valve for Fuel Line Oil Petrol Diesel Aluminium Silver Pack of 2 - Image 2](https://m.media-amazon.com/images/I/61MsAeZHruL.jpg) ![1/4" 6mm Non Return One Way Check Valve for Fuel Line Oil Petrol Diesel Aluminium Silver Pack of 2 - Image 3](https://m.media-amazon.com/images/I/61DAHHXxGKL.jpg) ![1/4" 6mm Non Return One Way Check Valve for Fuel Line Oil Petrol Diesel Aluminium Silver Pack of 2 - Image 4](https://m.media-amazon.com/images/I/71d21hB3cQL.jpg) ![1/4" 6mm Non Return One Way Check Valve for Fuel Line Oil Petrol Diesel Aluminium Silver Pack of 2 - Image 5](https://m.media-amazon.com/images/I/71TIt+7Pq7L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Would this valve be effective in a air/vapor system?** A: yes, the valve can works in air system **Q: Can this be used on a submersible 600gph water pump for the basement?** A: 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. **Q: Do you install before fuel pump or close to carburetor** A: 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. **Q: Will this fit to Mazda Protege 2.0? Reference: 8574-20-309** A: This check valve will fit any 1/4 or 6mm fuel line. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quality and correctly sized *by C***S on 20 January 2024* Nice construction, used for pond water feature rather than fuel so s tad over engineered for the purpose but I like that. Good fit well made. ### ⭐ Pesimo *by R***. on 6 May 2026* Pesima calidad, no es de la medida que describe (mas chica) y no soporta mas de 5 psi de presión, no lo puedo devolver porque ya lo use! ### ⭐⭐⭐⭐⭐ Work will *by M***D on 16 April 2024* Recommend ## Frequently Bought Together - EVIL ENERGY 1/4" Fuel Check Valve One Way Inline Non Return Diesel Gasoline Silver(6mm OD,2PCS) - AQUANEAT Aquarium Air Stones 4x2 inch 2 Pack, Large Airstone, Aerator Bubble Diffuser, Air Pump Accessories Air Stones for Aquariums, Hydroponic, Ponds and Fish Tanks --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.lk/products/404144260-1-4-6mm-non-return-one-way-check-valve-fuel](https://www.desertcart.lk/products/404144260-1-4-6mm-non-return-one-way-check-valve-fuel) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-06-19*