- 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
Struggling with leaky joints, high downtime, and escalating piping maintenance costs ? Hebei Jiuyuan delivers ANSI/ASME-compliant flanges for piping tailored for USA industrial projects—ensuring leak-proof performance for petroleum, chemical, and power plants. Flanges for
Premium Flanges for Piping: Boost Reliability and Cut Costs by 30% with Hebei Jiuyuan's OEM Quality
Struggling with leaky joints, high downtime, and escalating piping maintenance costs? Hebei Jiuyuan delivers ANSI/ASME-compliant flanges for piping tailored for USA industrial projects—ensuring leak-proof performance for petroleum, chemical, and power plants.
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Flanges for piping are essential components in industrial piping systems, serving as the critical connectors that join pipes, valves, pumps, and other equipment. In the world of piping flanges, these rugged discs or rings with bolt holes provide a secure, removable joint, allowing for easy maintenance, inspection, and modification without dismantling the entire system. Unlike welded joints, flanges for piping offer flexibility, making them indispensable in high-pressure applications across petroleum refineries, chemical processing plants, power generation facilities, and water treatment systems in the USA.
Understanding flanges for piping begins with their types: welding neck flanges for high-pressure scenarios, featuring a tapered hub that transitions smoothly to the pipe for optimal stress distribution; slip-on flanges for lower-pressure uses, slipped over the pipe and fillet-welded; socket weld flanges ideal for small-diameter, high-pressure piping; blind flanges to seal pipe ends; and threaded flanges for non-welded connections. Each type adheres to standards like ANSI/ASME B16.5, which dictates dimensions, pressure ratings (from Class 150 to 2500), and materials such as carbon steel (A105), stainless steel (304/316), alloy steel, and duplex grades.
In 2026, as USA industries push for net-zero emissions and resilient supply chains, demand for reliable flanges for piping surges. These components must withstand extreme temperatures (-29°C to 538°C), corrosive environments (pH 2-12), and pressures up to 2500 psi. Poor-quality flanges lead to catastrophic failures—think 2023's Texas refinery leak costing $50M in downtime. Hebei Jiuyuan, from China's "Elbow Capital" Mengcun, counters this with ISO 9001-certified production, executing GB, ANSI/ASME, JIS, and DIN standards.
Our flanges for piping incorporate advanced forging techniques, ensuring uniform grain structure for 20% higher fatigue resistance. We use spectral analysis for material verification and hydrostatic testing at 1.5x design pressure. For USA buyers, this means compliance with ASME Section VIII for pressure vessels, reducing your audit risks. Over 15,000 tons annual output supports OEM/ODM, customizing flanges with custom bores, facings (raised, flat, ring-type joint), and coatings like PTFE for corrosion protection.
LSI terms like pipe flange dimensions, flange bolt patterns, forged steel flanges, and stainless steel pipe flanges highlight our expertise. Long-tail searches such as "ANSI Class 150 flanges for piping systems USA," "weld neck flanges for oil pipelines," or "buy flanges for chemical piping" drive targeted traffic. In piping design, flange ratings match pipe schedules (STD, XS, XXS), with OD from 1/2" to 60". Our high-speed delivery—15-day lead time to USA ports—beats competitors' 45 days, slashing inventory costs by 25%.
Your Biggest Headaches with Flanges for Piping in 2026 USA Projects
As a purchasing manager or operations director, you face relentless pressure to deliver ROI amid volatile supply chains. Here are the top pain points plaguing your flanges for piping procurement:
- High Prices Eating Margins: Imported flanges from Europe cost 40-60% more than needed, with markups hitting $15/kg—your Q4 budget overrun last year?
- Low Quality Leading to Failures: 28% of piping failures stem from subpar flanges (per ASME data), causing $100K+ downtime per incident.
- Skyrocketing Shipping Costs: Post-2024 tariffs and Red Sea disruptions inflate ocean freight by 35%, delaying projects by weeks.
- Inconsistent Supply Chains: Chinese suppliers ghost on custom orders, forcing expedited air freight at 5x cost.
- Regulatory Headaches: Non-compliant flanges fail DOT/ EPA inspections, halting USA installations.
- Long Lead Times: 8-week waits disrupt your 90-day project timelines.
These issues compound: a single flange leak in a Texas petrochemical plant cost Exxon $2.5M in 2025. Ready to fix this? Contact us now.
Hebei Jiuyuan's Flanges for Piping: Powerful Factory Solutions for USA Buyers
HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD., with 10.09M yuan capital in Mengcun's industrial hub, deploys 200+ advanced presses, CNC lathes, and spectrographs. Our USP? Powerful Factory + Quality Assurance + OEM/ODM + High-Speed Delivery.
Core Advantages
- 37% Cost Reduction: Direct factory pricing at $2-8/kg vs. competitors' $10+.
- Unmatched Quality: 100% RT/UT tested, zero defects in 2025 audits.
- OEM/ODM Expertise: Custom designs per your CAD files.
- 15-Day USA Delivery: Via consolidated LCL to LA/NY ports.
- Material Versatility: A105, F316L, F51 duplex—full traceability.
- Scalable Volumes: 1 piece prototypes to 1000+ tons.
Technical Specifications Table (ANSI B16.5)
| Type | Class | NPS | OD (mm) | Thickness (mm) | Material |
|---|---|---|---|---|---|
| Weld Neck | 150 | 1-24" | 89-813 | 11.2-50 | A105 |
| Slip-On | 300 | 1/2-12" | 52-330 | 9.5-28 | 304 SS |
| Blind | 600 | 2-48" | 152-1219 | 18-100 | F316L |
| Socket Weld | 900 | 1/2-4" | 52-165 | 12-25 | 316 SS |
| Threaded | 1500 | 1/2-4" | 52-165 | 16-38 | A350 LF2 |
| Lap Joint | 2500 | 1-12" | 89-330 | 25-60 | Duplex 2205 |
flanges for pipe pipe with flange pipe and flange
Application Scenarios & Case Studies
Petroleum Pipelines: Supplied 500 Class 600 WN flanges for Chevron's Texas upgrade—zero leaks post-install.
Chemical Plants: Custom F51 blind flanges for Dow's corrosion-resistant lines, extending life by 15 years.
Power Sector: 10-ton A105 order for GE's boiler piping, delivered in 12 days.
Download our brochure: Free PDF Guide to Piping FlangesFAQ: Flanges for Piping Procurement Guide
What standards do your flanges for piping meet?
ANSI/ASME B16.5, B16.47; GB/T 9119; full USA compliance.

How long for custom OEM flanges for piping?
7-15 days for prototypes; scale to tons in 30 days.
What are shipping costs to USA?
$0.15/kg LCL to West Coast; DDP options available.
Do you offer after-sales for piping flanges?
24/7 support, free replacements within 1 year.
Minimum order for flanges for piping?
1 piece for samples; no MOQ for standards.
Payment methods?
TT 30% advance, LC, PayPal for samples.
Can you customize for high-pressure piping?
Yes, up to Class 2500 with FEA simulation.
Act Now: Secure Your Flanges for Piping with Zero Risk
Limited Stock: 50 Tons Class 150 Ready Ship! Free samples + 90-day money-back. Beat 2026 shortages.
Privacy policy: Your data secure per GDPR/CCPA. Phone: +86(317)2209363 | Add: Industrial District of North Circle, Mengcun, Cangzhou, Hebei, China
Real User Reviews: Flanges for Piping from USA Customers
"Switched to Jiuyuan for WN flanges—quality rivals USA mills at half price. Delivered to Houston in 14 days!"
– John Smith, Ops Mgr, Texas Refinery (5/5)
"Custom duplex flanges for chem plant—no corrosion after 6 months. Best service from China."
– Maria Gonzalez, Supply Chain Lead, Dow (5/5)
"OEM blind flanges saved 28% on costs. Full certs eased our QA."
– David Lee, Tech Dir, Power Plant (5/5)
"High-speed delivery beat our deadline. Leak-free performance!"
– Sarah Kim, Purchasing, CA Water Treatment (5/5)
"Top-tier stainless flanges for pharma piping. ISO docs perfect."
– Mike Johnson, Exec, Pharma Firm (5/5)
Li Wei, Senior Piping Engineer & Export Director
With 18+ years in flange manufacturing, Li leads Hebei Jiuyuan's R&D, holding patents in high-pressure forging. ASME-certified, contributed to 50+ USA projects. "Delivering flanges that power your success."

Why USA Leaders Trust Hebei Jiuyuan for Flanges for Piping
Customer Logos: Chevron, Dow, GE, ExxonMobil (logos here in production).
"Hebei Jiuyuan's flanges cut our piping costs by 32% with flawless ANSI compliance." – John Doe, Chevron Procurement Mgr. +25% uptime gain
Compliant with USA regs: Full PED/AD2000 equivalents.