- Pipe Fitting
- Cast Products
- UNION
- UNION M/F(CU MF)
- HEXAGON NUT (LN)
- WELDING NPPLE (WN)
- SOCKET PLAIN (SPU)
- COUPLING O.D.MACHINED (SPE)
- 90 ELBOW(90LB)
- 45 ELBOW(45LB)
- STREET ELBOW(SLB)
- CAP (CB)
- BARREL NIPPLE (BN)
- SOCKET BANDED(SB)
- UNION(CU)
- REDUCING SOCKET BANDED (RSB)
- REDUCING TEE (RTB)
- REDUCING HEXAGON NIPPLE(RHN)
- SQUARE PLUG (SQ)
- CROSS (十B)
- TEE(TB)
- HOSE NIPPLE (HON)
- HEXAGON NIPPLE(HN)
- HEXAGON PLUG (HP)
- HEXAGON HEAD CAP(HCB)
- HEXAGON BUSHING(HB)
- Forged Products
- SW Coupling
- ECCENTRIC SWAGED NIPPLE
- FEMALE AND MALE THREADED 90° ELBOW
- HRD OUTLETS
- THREADED CROSS
- THREADED TEE
- THREADED CAP
- THREADED 90° ELBOW
- THREADED 45° ELBOW
- HEX HEAD BUSHING
- HEX HEAD PLUG
- NIPOLETS
- SQUARE HEAD PLUG
- BW OUTLET
- PIPE NIPPLE(TOE)
- Half-Coupling
- SW Half-Coupling
- SW OUTLETS
- SW REDUCER INSERTS TYPE2
- SW REDUCER INSERTS TYPE1
- SW
- SW Tee
- SW CAP
- SW45° LATERAL
- SW90° Elbow
- SW45° Elbow
- BOSS
- CLASS 3000 UNIONS OF SW ENDS
- CLASS 3000 UNIONS OF THRD ENDS
- ROUND HEAD PLUG
- REDUCING HEXAGONAL NIPPLE
- FLUSH BUSHING
- CONCENTRIC SWAGED NIPPLE
- STRAIGHT HEXAGONAL NIPPLE
- PIPE NIPPLE(TBE)
- TSW Coupling
- Flange
Secure your pipeline integrity with certified, high-grade 50mm flange components engineered for extreme durability. Designed for Purchasing Managers and Technical Directors who demand zero leakage and on-time delivery. Pain Point Solved: Eliminate costly downtime
The Ultimate Guide to Sourcing High-Performance 50mm Flange Solutions for Industrial Pipelines
1. Understanding the Critical Role of 50mm Flanges in Modern Infrastructure
2. Common Pain Points in Global Pipeline Procurement
3. Our Premium 50mm Flange Specifications & Capabilities
4. Proven Track Record: Client Success Stories
5. Frequently Asked Questions (FAQ)
6. Secure Your Supply Chain Today
Hero Section: Precision Connectivity for Global Industries
Secure your pipeline integrity with certified, high-grade 50mm flange components engineered for extreme durability. Designed for Purchasing Managers and Technical Directors who demand zero leakage and on-time delivery.
Pain Point Solved: Eliminate costly downtime caused by low-quality fittings, delayed shipments, and incompatible standards.
Deep Dive: The Strategic Importance of the 50mm Flange
In the complex world of industrial infrastructure, the reliability of fluid and gas transport systems hinges entirely on the integrity of its connections. As we advance through 2026, the demand for precision-engineered components has never been higher. Among these, the 50mm flange stands out as a critical junction point in countless applications ranging from municipal water treatment to high-pressure chemical processing plants. At HEBEI JIUYUAN PIPELINE MANUFACTURING CO., LTD, we understand that sourcing a simple DN50 flange is not merely about purchasing a metal ring; it is about securing the safety, efficiency, and longevity of your entire operational network.
When professionals refer to a 50mm flange, they are typically discussing a component designed to connect pipes, valves, pumps, and other equipment to form a piping system. While the nominal diameter may seem straightforward—approximately 2 inches or DN50—the underlying engineering is highly sophisticated. In the global marketplace, standards vary significantly. Whether you require adherence to ANSI/ASME B16.5, DIN EN 1092-1, or JIS B2220 standards, the dimensional accuracy is paramount. A deviation of even a few millimeters in bolt hole spacing or face-to-face distance can lead to catastrophic assembly failures, resulting in hazardous leaks and expensive project delays.
The material composition of your 50mm flange dictates its suitability for specific environments. For instance, in offshore oil and gas applications, standard carbon steel may corrode rapidly due to saltwater exposure. Here, upgrading to Stainless Steel 316/316L or even Duplex Stainless Steel becomes a non-negotiable requirement for maintenance teams. Conversely, in general utility water lines, Carbon Steel P235GH offers a cost-effective solution without compromising structural strength. Understanding these nuances is why many senior procurement officers insist on detailed technical datasheets before signing off on contracts. We provide transparent documentation for every batch of 50mm pipe flange we manufacture, ensuring full traceability from the raw steel billet to the final shipped crate.
Furthermore, the pressure rating associated with a 50mm flange is a critical safety parameter. Is your application operating at PN16, PN25, or Class 300? Selecting a flange rated too low for the system pressure poses severe safety risks, potentially leading to rupture. Selecting one rated too high might result in unnecessary cost inflation without functional benefit. Our engineering team works directly with clients to analyze their operating conditions—temperature, pressure, and medium corrosivity—to recommend the optimal configuration. This consultative approach distinguishes us from generic suppliers who simply sell stock items without considering the application context.
In the year 2026, supply chain resilience is the top priority for multinational corporations. Relying on fragmented suppliers for pipeline fittings increases the risk of mismatched batches and inconsistent quality control. By consolidating your 50mm flange procurement with a specialized manufacturer like HEBEI JIUYUAN, you gain access to a vertically integrated production facility located in Mengcun, the industrial hub known for pipeline hardware. This concentration of resources allows for rigorous testing protocols, including Ultrasonic Testing (UT) and Positive Material Identification (PMI), ensuring that every slip-on flange, welding neck flange, or blind flange meets the strictest international regulations. Compliance with certifications such as ISO 9001 and Special Equipment Pressure Pipeline Certification is not just a badge on the wall; it is the guarantee of a systematic, audited production process.
Logistics also plays an integral role in the value proposition of your 50mm flange purchase. With fluctuating freight rates and customs complexities, a reliable supplier must offer streamlined export solutions. We handle the intricacies of IPPC treated packaging for wooden cases, ensuring your goods clear customs smoothly across USA, EU, and Asian markets. Moreover, our proximity to major ports facilitates high-speed delivery, reducing the total lead time from order confirmation to installation on-site. For Just-In-Time (JIT) manufacturing schedules, this speed difference can mean the distinction between meeting production targets and facing shutdown penalties. When you search for buy 50mm flange online, consider not just the unit price, but the total landed cost including potential delays and rework.
Finally, let us address the customization aspect. Standard inventory covers 80% of needs, but industrial innovation often requires bespoke solutions. Perhaps you need a threaded 50mm flange with non-standard drilling patterns, or a specialized alloy capable of withstanding cryogenic temperatures down to -196°C. Our ODM (Original Design Manufacturer) capabilities allow us to mold prototypes quickly. Whether you need long weld neck flanges for deep seabed pipelines or compact fittings for space-constrained machinery enclosures, our CNC machining centers can adapt to your unique CAD drawings. This flexibility ensures that the 50mm flange you receive fits perfectly into your existing or new design architecture, eliminating modification costs post-delivery.
Problem Agitation: Risks in Current Market Sourcing
Before committing to a supplier, assess the common pitfalls affecting your current pipeline projects. Inefficient procurement strategies can silently erode your ROI.
- Unpredictable Lead Times: Generic suppliers often promise 2 weeks but deliver in 8. This delay halts entire construction phases. Impact: Project penalty fees averaging $5,000/day.
- Dimensional Discrepancies: Bolt holes do not align with mating equipment. Impact: Requires on-site grinding or fabrication, increasing labor costs by 35%.
- Material Substitution: Receiving Grade 304 instead of ordered Grade 316. Impact: Premature corrosion failure within 6 months in aggressive environments.
- Hidden Logistics Costs: Poor packaging leads to rust damage during transit. Solution Needed: Robust export packing with VCI paper protection.
- Inconsistent Pricing: Quotas change weekly due to volatile steel markets. Impact: Budget overruns and approval rejections.
Don't let these hidden costs drain your budget. Switch to a partner who guarantees consistency.
View Our Guaranteed Pricing Model →Solution Presentation: Why HEBEI JIUYUAN?
We combine powerful factory capacity with rigorous quality assurance to deliver the perfect 50mm flange for your needs.
Core Advantages
- OEM/ODM Design Capability: We modify any standard. Send us your drawings; we produce the exact fit.
- High-Speed Delivery: Standard stock ready for shipment within 3 days. Large orders fulfilled in 15 days.
- Premium Material Verification: Every lot undergoes PMI (Positive Material Identification) testing.
- Competitive Pricing: Factory direct eliminates middleman markups, reducing costs by up to 20%.
Technical Specifications Table (50mm / DN50)
| Specification | Details |
|---|---|
| Nominal Diameter | DN50 / 2 Inches / 50mm |
| Pressure Rating | Class 150, 300, 600 | PN10, PN16, PN25, PN40 |
| Face Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Materials Available | Carbon Steel (A105, Q235B), SS (304, 316L), Alloy Steel (F11, F22) |
| Surface Treatment | Black Paint, Galvanized, Anti-rust Oil, Zinc Plated |
| Certifications | ISO9001, CE, PED, RoHS |
Application Scenarios
Our 50mm flange products are trusted globally across diverse industries:
- Oil & Gas: Refinery piping and crude transport lines requiring high-pressure resistance.
- Water Treatment: Pump connections needing corrosion-resistant stainless steel variants.
- Power Plants: Steam and cooling water systems utilizing carbon steel for thermal stability.
- Construction: HVAC ductwork and fire protection sprinkler systems.
Fig 1. Advanced hydraulic pressing machines ensuring precise flange formation at Hebei Jiuyuan.
Social Proof & Certifications
Trust is earned through verification. We hold the highest industry accreditations to assure your compliance teams.
2-1-2-flange 45-degree-pipe-tee 1-2-pipe-flange 1-pipe-cap
Verified Compliance: ISO 9001:2008, Special Equipment Pressure Pipeline Certification.

Client Testimonials
★★★★★
"We switched to Jiuyuan for our 50mm stainless steel flange requirements last quarter. The shipping speed was incredible compared to previous vendors, arriving in Houston 4 days ahead of schedule. Not a single piece had marking defects."
★★★★★
"The dimensional accuracy of the DN50 flanges was spot on. We fitted them directly without any grinding. Great support from the technical team regarding the ANSI drilling templates."
★★★★★
"Cost savings were significant—about 22% reduction in overall component spend. The quality assurance report provided with the shipment made our internal audit smooth."
Frequently Asked Questions (FAQ)
Q1: What is the minimum order quantity (MOQ) for a custom 50mm flange?
A: For customized sizes, the MOQ is generally 10 pieces per specification to optimize manufacturing efficiency. However, for standard stock items, we accept smaller trial orders.
Q2: Do you provide samples before bulk production?
A: Yes. We offer free samples for existing molds. If special machining is required, sample fees apply, but these are refundable upon placing a bulk order.
Q3: How does the shipping work for heavy items like pipeline fittings?
A: We utilize FOB (Free On Board) or CIF (Cost, Insurance, and Freight) terms. Goods are packed in iron-sealed wooden cases protected by anti-rust oil and VCI film to withstand ocean transit.
Q4: Can you produce materials according to ASTM/AISI standards?
A: Absolutely. Our 50mm flange production supports ASTM A182, A105, A182 F304/F316, and other international alloy standards as per customer request.
Q5: What is the typical lead time?
A: Standard items ship in 3-5 days. Custom manufacturing takes approximately 15-20 days depending on volume and complexity.
Q6: Do you offer warranty services?
A: Yes, we provide a 12-month quality warranty covering manufacturing defects and material inconsistencies.
User Reviews: Real Feedback from the Field
"I was skeptical about ordering pipe flanges from overseas, but Jiuyuan's transparency changed my mind. They sent photos of the welding process before shipping. My engineers confirmed the weld quality was better than domestic suppliers."
— David K., Maintenance Chief, Nevada Utilities [client/4.png]
"Excellent response time. I emailed asking for a price breakdown on 500 units of 50mm slip-on flanges and got a reply within 2 hours. The pricing was competitive."
— Emily R., Supply Chain Lead, UK Construction Group [client/5.png]
"We needed urgent replacement parts for a chemical leak incident. They prioritized our order and delivered via air freight within 7 days. Lifesavers!"
— Thomas W., Plant Safety Officer, Sydney Chemicals [client/6.png]
Strong Call to Action: Don't Compromise on Pipeline Safety
Limited Stock Available for Immediate Shipment. Prices Valid Until End of Month.
Risk-Free Promise: We offer free samples and a money-back guarantee if specs do not match the drawing.
Phone: +86(317)2209363
Whatsapp: +86 18131702111
Email: sales@jypipeline.com
Address: INDUSTRIAL DISTRICT OF NORTH CIRCLE, MENGCUN, CANGZHOU CITY, HEBEI PRVINCE, CHINA
Link: Official Contact Page
About the Author
Liang Chen is a Senior Pipeline Engineering Specialist with over 15 years of experience in the manufacturing sector. Currently serving as a Technical Advisor at HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD., Liang specializes in optimizing supply chains for international clients. He holds a degree in Mechanical Engineering and is certified in Project Management Professional (PMP).
Expertise: Pipe Fittings Manufacturing, International Trade Regulations, Welding Standards.
