Ganyuan Hardware specializes in the R&D and manufacturing of high-precision metal fittings, offering a series of stainless steel double-flange through-wall pipes. Specifically designed for water supply and drainage projects, industrial pipelines, and environmental protection equipment, these pipes balance sealing performance with tensile strength, making them suitable for various industrial, municipal, and commercial applications. Their meticulous craftsmanship ensures safe and reliable wall penetrations.
Precision-manufactured stainless steel double-flange through-wall pipes: the best choice for secure and sealed wall penetrations
Material Advantages: Utilizing high-purity 304 or 316L stainless steel, with 316L meeting molybdenum content standards, these pipes offer excellent rust and corrosion resistance, adapting to complex environments such as humidity, acids, alkalis, and seawater. They are resistant to oxidation and rust, with a service life of over 10 years, overcoming the shortcomings of ordinary carbon steel through-wall pipes, such as rust and leakage.
Structural Advantages: Equipped with standard flanges at both ends, allowing for direct bolt connection to pipe valves and equipment interfaces for convenient installation. The double-flange design provides both tensile and torsional resistance, making it suitable for applications with vibration or settlement risks.
Technological Advantages:Employing precision rolled plate welding or seamless pipe processing, welds undergo 100% flaw detection to ensure they are free of porosity and cracks. Flanges and pipe bodies utilize a full-penetration weld structure, guaranteeing reliable strength. Multiple polishing and pickling passivation treatments result in a smooth, burr-free surface that is resistant to material buildup and easy to clean.
Customization Advantages:Customization is available based on customer needs, including pipe diameter, length, flange pressure rating, wall thickness, water-stop ring size, and 304/316L material grade, to suit diverse wall thicknesses and sealing requirements. Bulk customization offers exclusive discounts, catering to the bulk purchasing needs of engineering companies and equipment manufacturers.
Quality Advantages:Each batch of products undergoes triple testing for dimensional accuracy, weld flaw detection, and pressure sealing, meeting national pipeline fitting industry standards. Only products that pass these tests are released, ensuring quality and preventing substandard products with dimensional deviations, weld defects, or damaged flange sealing surfaces from entering the market.
Whether for pre-installation in new construction projects or for the renovation and replacement of old pipelines, it can meet the requirements for high sealing performance, corrosion resistance, and pull-out resistance. With its stable processing quality and reliable structural design, it has gained recognition from many engineering companies, environmental protection equipment manufacturers, and enterprises.
We are a manufacturer integrating industry and trade. We have more than 20 years of experience in production technology. We are located in Dongguan City, Guangdong Province, China. We have advanced high-end professional production and processing technology, and are committed to innovative R&D and production. After years of market tempering and exploration, it has high-quality technical management personnel, experienced designers, R&D personnel and a perfect company management system cnc precision.
5-axis CNC workshop
Our factory has a plant area of about 2,000 square meters and masters core processing technologies. It has high-end precision production equipment cnc precision: CNC lathes, 5-axis CNC, 4-axis CNC, stamping equipment, die-casting equipment, etc. 2.5-dimensional detection equipment 
cnc precision surface treatment
For surface treatment, our suppliers have been working with us for many years. They have rich experience and are familiar with all the quality requirements of each other. The quality is stable and more guaranteed. Such as: heat treatment, spray painting, powder coating, blackening, silver/gold plating, electrolytic polishing, nitriding, phosphating, nickel/zinc/chromium/TiCN plating, anodizing, polishing, passivation, sandblasting, galvanizing, heat treatment , hardening, laser marking, etc. according to customer requirements. Aluminum alloy surface oxidation
Packaging Details
Q1: Where can I get product & price information?
A1: Send us an inquiry e-mail, we will contact you once we received your mail.
Q2: How long will I get the sample?
A2: Depends on your specific items, within 3-7 days generally.
Q3: What kinds of information do you need for a quote?
A3: Kindly please provide the product drawings in PDF, if provide in STEP or IGS will be better.
Q4: What are the payment terms?
A4: We accept 50% as a payment deposit, when the goods are prepared, we shoot photos or videos for your check, and then you can pay the balance. For small quantities, we accept Paypal, the commission will be added to the order. For big amounts, T/T is preferred.
Q5: How to deliver the goods?
A5: We deliver the products by courier company.
Q6: Are you a trading company or factory?
A6: We are factory direct with 17 experienced engineers and more than 50 employees as well approximate 3,000m2 workshop area.
Q7: What shall we do if we don't have drawings?
A7: Please send your sample to our factory, then we can copy and provide you better solutions. If send us pictures or drafts with dimensions(Length, Height, Width), CAD or 3D file will be made for you.
Q8: Can we get some samples before mass production?
A8: Absolutely yes.
Q9: Will my drawings be safe after sending them to you?
Q10: Is it possible to know the operation status of my products without visiting your company?
A10: We will offer a detailed production schedule and send weekly reports with digital pictures and videos which show the machining progress.
