--- product_id: 550081821 title: "Air Check Valve Stainless Steel Hex BSPP Female Thread One Way Air Check Valve for Gas, Oil, Water Pipe Connection(1/4”) Check Valve air Compressor Check Valve 1/4 Inch One Way Check Valve" brand: "marhynchus" price: "S$37" currency: SGD in_stock: true reviews_count: 5 category: "Marhynchus" url: https://www.desertcart.sg/products/550081821-air-check-valve-stainless-steel-hex-bspp-female-thread-one store_origin: SG region: Singapore --- # 304 Stainless Steel Durability Precision BSPP Female Thread Hexagonal Design for Easy Install Air Check Valve Stainless Steel Hex BSPP Female Thread One Way Air Check Valve for Gas, Oil, Water Pipe Connection(1/4”) Check Valve air Compressor Check Valve 1/4 Inch One Way Check Valve **Brand:** marhynchus **Price:** S$37 **Availability:** ✅ In Stock ## Summary > 🔧 Lock in reliability with every twist — the valve that keeps your flow flawless! ## Quick Answers - **What is this?** Air Check Valve Stainless Steel Hex BSPP Female Thread One Way Air Check Valve for Gas, Oil, Water Pipe Connection(1/4”) Check Valve air Compressor Check Valve 1/4 Inch One Way Check Valve by marhynchus - **How much does it cost?** S$37 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/550081821-air-check-valve-stainless-steel-hex-bspp-female-thread-one) ## Best For - marhynchus enthusiasts ## Why This Product - Trusted marhynchus brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multiple Size Options:** Available in 1/8”, 1/4”, 3/8”, and 1/2” sizes to fit your exact project needs without compromise. - • **Effortless Installation:** Hexagonal design allows quick, tool-friendly installation and removal—no fuss, no downtime. - • **Precision BSPP Threading:** Seamlessly connects with BSPP female threads to ensure a slip-free, secure fit every time. - • **Versatile Media Compatibility:** Perfectly suited for air, water, oil, and gas pipe connections—one valve, endless applications. - • **Rust-Resistant Stainless Steel:** Engineered from premium 304 stainless steel for unmatched durability and airtight performance. ## Overview This 1/4 inch one-way air check valve crafted from high-grade 304 stainless steel offers superior rust resistance and airtight sealing. Featuring precision BSPP female threading and a hexagonal body, it ensures easy installation and a secure, slip-free connection. Designed for versatile use across air, water, oil, and gas pipelines, it comes in four sizes to perfectly match your system requirements. ## Description Features: 1. High quality stainless steel material, stable performance, not easy to rust and good airtightness 2. Accuracy BSPP female thread, easy to connect without slipping 3. This is hex female thread air check valve which is easy to install and remove, can be used for water connection 4. Available in 4 for choice: 1/8in, 1/4in, 3/8in, 1/2in 5. Suitable for connection of pipes under gas, water, oil and other media Specification: Condition: 100% Brand new Material: 304 Stainless steel Thread: BSPP female thread Optional : 1/8in, 1/4in, 3/8in, 1/2in Package List: 1 x Air Check Valve Review: The size fits perfect,don't know if it will pop off yet,haven't aired it up yet Review: Buen producto es lo publicado ## Features - EXCELLENT MATERIAL: This air check valve is made of high-quality stainless steel, with stable performance, not easy to rust, and good air tightness. - BSPP FEMALE THREAD: This air check valve has a precision BSPP internal thread, which is easy to connect and does not slip. - SIMPLE INSTALLATION: This is an easy to install and disassemble hexagonal internal thread air check valve, which can be used for water pipe connection. - APPLICATION RANGE: The air check valve is suitable for pipe connection under air, water, oil and other media. - 4 SIZES: This air check valve is available in 4 : 1/8in, 1/4in, 3/8in, 1/2in, which can meet your requirements. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08CNG27SN | | Best Sellers Rank | #161,845 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #63 in Check Valves | | Brand | Marhynchus | | Exterior Finish | Stainless Steel | | Included Components | inc | | Inlet Connection Type | Flange | | Item Dimensions LxWxH | 50 x 20 x 20 Millimeters | | Item Weight | 60 g | | Item dimensions L x W x H | 50 x 20 x 20 Millimeters | | Item model number | Marhynchusx9g8bq3tn5-02 | | Manufacturer | shanrya | | Material | Stainless Steel | | Net Quantity | 1.0 Count | | Number of Ports | 2 | | Outlet Connection Type | Flange | | Product Dimensions | 5 x 2 x 2 cm; 60 g | ## Product Details - **Brand:** Marhynchus - **Exterior Finish:** Stainless Steel - **Inlet Connection Type:** Flange - **Item dimensions L x W x H:** 50 x 20 x 20 Millimeters - **Manufacturer:** shanrya - **Material:** Stainless Steel - **Number of Ports:** 2 - **Outlet Connection Type:** Flange ## Images ![Air Check Valve Stainless Steel Hex BSPP Female Thread One Way Air Check Valve for Gas, Oil, Water Pipe Connection(1/4”) Check Valve air Compressor Check Valve 1/4 Inch One Way Check Valve - Image 1](https://m.media-amazon.com/images/I/619BsWq3LuL.jpg) ## Questions & Answers **Q: What is the free flow cfm rating? i want to use it for a large compressor -10 cfm - need to allow volume by this valve without flow restriction?** A: I don’t know the cfm but it works well with my compressor. I have a vmac gas driven screw compressor tankless but I added a 30 gallon tank I use the check valve to stop back feeding from the tank **Q: What is the opening pressure?** A: No pressure needed, until there is back pressure. I use on air line. Stops the air from back feeding. I use 2 air compressors. **Q: Operating and max pressure of one way check valve. is it rated for hpa?** A: Not sure what you mean by hpa but it will work for anything 100psi. **Q: It says it’s for water in four places and only one place for gas which is it what is the operating pressures style of check valve? Ball or flap** A: It’s flat valve not ball but I’m not sure what pressure it is. I used it with 140psi air pressure with no problem. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***A on 3 February 2024* The size fits perfect,don't know if it will pop off yet,haven't aired it up yet ### ⭐⭐⭐⭐⭐ Review *by R***B on 8 August 2025* Buen producto es lo publicado ### ⭐⭐⭐⭐⭐ Review *by R***K on 20 November 2025* My handyman chose and installed it with no issues. Seems a well made item. ## Frequently Bought Together - Air Check Valve Stainless Steel Hex BSPP Female Thread One Way Air Check Valve for Gas, Oil, Water Pipe Connection(1/4”) Check Valve air Compressor Check Valve 1/4 Inch One Way Check Valve - JoyTube 1/4" Male to 1/4" Male NPT Hex Nipple 304 Stainless Steel Threaded Pipe Fittings (Pack of 5) - QWORK Mini Ball Valve, 2 Pack 1/4" NPT Thread Female and Male 304 Stainless Steel Shut-Off Valves --- ## 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.sg/products/550081821-air-check-valve-stainless-steel-hex-bspp-female-thread-one](https://www.desertcart.sg/products/550081821-air-check-valve-stainless-steel-hex-bspp-female-thread-one) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-10-06*