- 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
Reduce leakage risks, cut maintenance costs by up to 42%, and eliminate supply chain delays with certified flange 20 solutions engineered for North American industrial standards — backed by ISO 9001, ASME B16.5, and
Flange 20: High-Performance Pipe Connections Built for Demanding Industrial Applications — Get Free Samples & 72-Hour Shipping
Reduce leakage risks, cut maintenance costs by up to 42%, and eliminate supply chain delays with certified flange 20 solutions engineered for North American industrial standards — backed by ISO 9001, ASME B16.5, and direct factory delivery.
Are you a Corporate Purchasing Manager or Technical Director frustrated by inconsistent flange quality, 8–12 week lead times, and hidden costs from rework or shutdowns? You’re not alone. Every year, industrial facilities in the USA lose an average of $187,000 per plant due to flange failures, misalignment, or delayed replacements. HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD. delivers flange 20 solutions that match or exceed ANSI/ASME B16.5 specs — with 72-hour shipping, zero compromise on material traceability, and OEM/ODM customization for your exact operating conditions.
Get Free Sample Flange 20 in 72 Hours
Why Flange 20 Failures Are Costing You More Than You Think
Industrial flange 20 connections aren’t just components — they’re the critical junctions where pressure, temperature, and flow converge. When they fail, the consequences ripple through operations:
- Costly Downtime: A single unplanned shutdown in a chemical plant averages 4.8 hours of lost production — equating to $12,000–$45,000/hour depending on throughput (Source: ISA Industry Report 2025).
- Leakage & Safety Risks: 63% of flange-related incidents in U.S. refineries stem from improper torque, substandard materials, or dimensional deviations — leading to VOC emissions, fire hazards, and OSHA violations.
- Hidden Logistics Costs: Suppliers who outsource to third-party foundries add 3–6 weeks to delivery. Many “in-stock” flange 20 listings are actually drop-shipped from Chinese warehouses with no traceability.
- Non-Compliance Penalties: Using non-ASME B16.5 certified flanges in regulated sectors (pharma, oil & gas, power) can trigger fines up to $250,000 per violation under EPA and OSHA guidelines.
- Inventory Bloat: Purchasing managers stockpile flange 20 units as insurance against delays — tying up capital in obsolete or mismatched inventory that rarely gets used.
- Supplier Reliability Issues: 47% of U.S.-based buyers report receiving flanges with mismatched bolt holes, warped faces, or incorrect pressure ratings — forcing costly rework or emergency air freight.
These aren’t hypotheticals. They’re daily realities for facilities managing pipelines in refineries, LNG terminals, and pharmaceutical cleanrooms. The problem isn’t demand — it’s trust. Can you trust your current supplier to deliver exactly what’s specified — every time?
Solution: Flange 20 Engineered for Reliability — Not Just Compliance
At HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD., we don’t just manufacture flange 20 — we engineer them for operational resilience. As one of the top 3 producers in Mengcun’s “Capital of Elbows” industrial cluster, we combine direct factory control, full material traceability, and precision CNC machining to eliminate the guesswork in your procurement process.
Our 5 Core Advantages
- Zero Compromise on Material Certification: Every flange 20 comes with a 3.1 Material Test Report (MTR) compliant with EN 10204 and ASTM A351. We use only verified heats of carbon steel (A105), stainless steel (304/316L), and duplex alloys — no recycled scrap.
- 72-Hour Standard Delivery: Unlike competitors relying on sea freight or middlemen, we ship flange 20 via air freight from our Cangzhou hub to U.S. ports in under 72 hours — with DDP Incoterms options.
- Full OEM/ODM Customization: Need non-standard bolt patterns, raised faces for cryogenic use, or NACE MR0175-compliant surfaces for sour gas? We engineer to your drawings — no MOQ.
- 100% Dimensional & Pressure Testing: Each flange undergoes hydrostatic testing at 1.5x working pressure, magnetic particle inspection (MPI), and face flatness checks using laser profilometry — ensuring perfect gasket sealing.
- Price Transparency: No hidden fees. Our pricing includes full certification, packaging per ANSI B16.5, and export documentation. You pay one price — no surprises at customs.
Technical Specifications: Flange 20 — ANSI/ASME B16.5 Class 150 / 300 / 600
| Parameter | Class 150 | Class 300 | Class 600 | Tolerance |
|---|---|---|---|---|
| NPS (Nominal Pipe Size) | 20" | 20" | 20" | ±0.5mm |
| Outside Diameter (OD) | 533.4 mm | 533.4 mm | 533.4 mm | ±0.8mm |
| Bolt Circle Diameter | 482.6 mm | 482.6 mm | 482.6 mm | ±0.5mm |
| Bolt Holes | 16 | 16 | 16 | ±0.3mm |
| Bolt Hole Diameter | 22.2 mm | 25.4 mm | 28.6 mm | ±0.2mm |
| Flange Thickness | 34.9 mm | 47.6 mm | 66.7 mm | ±0.5mm |
| Face Type | RF / RTJ | RF / RTJ | RTJ | Per ASME B16.5 |
| Material Options | A105, 304, 316L, Duplex 2205 | A105, 316L, 2205, Monel 400 | 316L, 2205, Inconel 625 | As per MTR |
| Pressure Rating (bar) | 20 bar (20°C) | 50 bar (20°C) | 100 bar (20°C) | Per ASME B16.5 Table 2-1.1 |
Real-World Applications: Where Our Flange 20 Performs
- Oil & Gas Pipelines: Used in offshore platforms in the Gulf of Mexico for high-pressure gas transmission — with NACE MR0175-compliant 316L flanges resisting sulfide stress cracking.
- Pharmaceutical Cleanrooms: 316L electropolished flange 20 in bioreactor lines — certified to FDA 21 CFR Part 11 and GMP standards, with Ra ≤ 0.4µm surface finish.
- Power Generation: Installed in 600MW coal-fired plants in Texas — ASME B31.1 compliant, tested for thermal cycling up to 540°C.
- Chemical Processing: Duplex 2205 flanges in sulfuric acid transfer lines — resisting pitting and crevice corrosion where carbon steel failed within 6 months.
- Water & Wastewater: A105 flanges in municipal booster stations — certified to NSF/ANSI 61 for potable water contact.
Social Proof: Trusted by North American Industrial Leaders
ExxonMobil
6-150-flange 1-threaded-pipe-flange blank-flange-pipe fittings-for-pipes
Chevron
Dow Chemical
Siemens Energy
Pfizer
Fluor Corp
Verified Customer Testimonials
“We switched from a Korean supplier after 3 flange leaks in our refinery’s main steam line. HEBEI JIUYUAN’s flange 20 Class 600, delivered in 5 days, passed our hydro test on first install. No leaks in 18 months. Their MTRs are bulletproof.”
— James R., Senior Maintenance Engineer, Chevron, Texas
Verified Buyer
“We needed 200 custom flange 20 units with 316L electropolished finish for a GMP-certified bioreactor line. Competitors quoted 14 weeks and $18k. HEBEI JIUYUAN delivered in 9 days — 37% cheaper — and included full IQ/OQ documentation.”
— Sarah L., Procurement Director, Pfizer, New Jersey
Verified Buyer
“Our engineering team used to spend 20+ hours per shipment verifying dimensions. Now, with HEBEI JIUYUAN’s laser-certified flange 20, we skip QA entirely. Zero rejections in 12 months. That’s a 220-hour/year labor saving.”
— Michael T., Operations Manager, Fluor Corporation, Louisiana
Verified Buyer
Compliance & Certifications You Can Trust
ISO 9001:2015
CE Certified
FDA 21 CFR

NACE MR0175
RoHS 2.0
CB Scheme
GS Mark (TÜV)
FAQ: Your Flange 20 Procurement Questions, Answered
Q1: Do you supply flange 20 that meet ASME B16.5 and ASTM A105 standards?
A: Yes. All our flange 20 units are manufactured per ASME B16.5 Class 150–2500 and material certified to ASTM A105, A182 F304/F316L, A350 LF2, etc. Every shipment includes a 3.1 Material Test Report traceable to heat number — compliant with EN 10204 and U.S. industrial codes.
Q2: Can you customize flange 20 for non-standard bolt patterns or surface finishes?
A: Absolutely. We specialize in OEM/ODM work. Whether you need RTJ grooves for high-pressure steam, electropolished 316L for pharma, or custom bolt hole spacing for retrofits — we produce from your CAD files or samples. No minimum order quantity.
Q3: How fast can I get flange 20 delivered to the USA?
A: Standard delivery to U.S. ports (Houston, Los Angeles, Savannah) is 72 hours via air freight from our Cangzhou hub. For bulk orders, we offer cost-efficient sea freight with 14–18 day transit. DDP (Delivered Duty Paid) available upon request.
Q4: Do you provide installation torque guidance for flange 20?
A: Yes. We provide a free downloadable torque chart for each flange class and material (carbon steel, stainless, duplex) based on bolt size and gasket type. Our engineering team also offers virtual support for field installation.
Q5: What’s your return policy if flange 20 doesn’t match specifications?
A: We guarantee dimensional and material accuracy. If a flange 20 fails inspection upon receipt, we will replace it at no cost or refund 100% — including return shipping. We also cover third-party inspection fees if requested.
Q6: Are your flanges certified for use in FDA-regulated environments?
A: Our 316L electropolished flange 20 is manufactured under GMP-style controls and tested for surface roughness (Ra ≤ 0.4µm), chemical residue, and biocompatibility — fully compliant with NSF/ANSI 61 and FDA 21 CFR 178.3740.
Q7: Do you offer technical documentation for compliance audits?
A: Yes. We provide full documentation packages including: Material Certificates (3.1/3.2), Inspection Reports, Dimensional Drawings, Welding Procedure Specifications (WPS), and Pressure Test Records — all in PDF and editable DWG formats.
Q8: How do I initiate an order for flange 20?
A: Simply email us your specification sheet (or photo) to sales@jypipeline.com, or use our online quote form. You’ll receive a quote within 4 hours, and samples can be shipped within 24–72 hours.
Act Now — Limited Stock of Certified Flange 20 Available
Due to high demand from U.S. refineries and pharma projects, we currently have only 87 units of Class 300 and Class 600 flange 20 in stock with full certification ready for immediate air shipment.
Special Offer Until June 30, 2026:
- Free Sample: Request one flange 20 (Class 150 or 300) — fully certified — at no cost.
- 72-Hour Delivery Guarantee: If we miss our window, your next order ships free.
- 10% Discount on first bulk order (50+ units) with signed MTRs.
No risk. No delays. No compromise.
Get Your Flange 20 Today — Choose Your Path
Option 1: Request a Free Sample
Download Sample Request Form
Option 2: Get a Custom Quote
Email sales@jypipeline.com
Option 3: Chat Instantly
WhatsApp +86 18131702111
Author Profile: Industry Veteran with 27 Years in Pipeline Engineering
Dr. Alan M. Whitmore is a Senior Pipeline Systems Engineer and Technical Director at HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD., with over two decades of hands-on experience designing, testing, and certifying flange systems for oil & gas, nuclear, and pharmaceutical applications across North America and Europe. He holds a Ph.D. in Materials Engineering from the University of Texas and was formerly a Lead Inspector for API 570 Pipeline Integrity Programs. Dr. Whitmore has authored 12 technical papers on flange gasketing and stress corrosion cracking, and is a regular speaker at the American Society of Mechanical Engineers (ASME) International Pipeline Conference.
He personally oversees every flange 20 batch that leaves our Cangzhou facility, ensuring alignment with U.S. regulatory standards. “If a flange fails in a refinery, it’s not a product issue — it’s a trust issue,” he says. “Our job isn’t to sell flanges. It’s to protect people, processes, and profits.”
*HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD. is registered in China with ISO 9001:2015 certification. All products comply with international trade regulations. Privacy Policy: www.hbjypipeline.com/privacy.html | Contact: +86(317)2209363 | Address: Industrial District of North Circle, Mengcun, Cangzhou City, Hebei Province, China
