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- 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)
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- HEXAGON PLUG (HP)
- HEXAGON HEAD CAP(HCB)
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- Forged Products
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- BW OUTLET
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- SW
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- BOSS
- CLASS 3000 UNIONS OF SW ENDS
- CLASS 3000 UNIONS OF THRD ENDS
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- REDUCING HEXAGONAL NIPPLE
- FLUSH BUSHING
- CONCENTRIC SWAGED NIPPLE
- STRAIGHT HEXAGONAL NIPPLE
- PIPE NIPPLE(TBE)
- TSW Coupling
- Flange
Stop risking catastrophic failures with substandard blind flanges. HEBEI JIUYUAN delivers ASME B16.5 Class 900 20 blind flanges with 0.02mm surface finish precision , certified to ISO 9001:2015 and PED 2014/68/EU , shipped from
20 Blind Flange: Zero-Leak Sealing for High-Pressure Systems — Guaranteed in 72 Hours
Stop risking catastrophic failures with substandard blind flanges. HEBEI JIUYUAN delivers ASME B16.5 Class 900 20 blind flanges with 0.02mm surface finish precision, certified to ISO 9001:2015 and PED 2014/68/EU, shipped from our 120,000 sqm factory in just 72 hours — free sample available.
Designed for oil & gas pipelines, chemical processing plants, and power generation systems — this is the 20 blind flange that operations managers in the USA, Canada, and Europe trust to prevent shutdowns, avoid OSHA violations, and eliminate costly rework.
Get Free Sample in 48h | WhatsApp Technical Quote | Email Engineering Specs
Why 92% of U.S. Industrial Buyers Are Switching from Local Suppliers to Chinese OEMs for 20 Blind Flanges
You’ve been there:
- Cost overruns — You paid $847 for a Class 600 20 blind flange from a U.S. distributor... only to find porosity in the forging during hydrotesting.
- Delays — Your plant shutdown was postponed 14 days because your “expedited” flange from Texas arrived with incorrect bolt hole alignment.
- Compliance nightmares — Your audit team flagged a batch of “ANSI B16.5” flanges that didn’t meet ASME B16.5-2020 Section 6.4.2 for hub thickness tolerances.
- Supplier instability — Your long-time vendor went bankrupt. You’re now scrambling to requalify a new source — with zero margin for error.
- Hidden shipping costs — You thought $78/unit was cheap... until you paid $2,100 in LCL freight, customs brokerage, and import duties on non-CE-certified material.
- Engineering rework — Your design team spent 18 hours redrawing pipe layouts because the flange’s face finish didn’t match your gasket specs.
Here’s the hard truth: 73% of U.S. industrial failures linked to flange leaks (per Process Safety Progress, 2024) trace back to substandard blind flanges sourced from unverified vendors. You don’t need more suppliers. You need one reliable, technically rigorous partner who speaks your language — and understands your ASME, API, and ISO standards inside and out.
What’s next? Stop patching leaks with Band-Aid fixes. Let’s fix the root cause.
Why HEBEI JIUYUAN’s 20 Blind Flange Is the New Industry Benchmark
For 17 years, we’ve specialized in precision-engineered blind flanges for global industrial clients. We don’t make “flanges.” We make mission-critical pressure barriers — built to survive 1,500 psi, -40°C to 550°C, and 10,000+ thermal cycles.
Our 5 Core Advantages — Backed by Data
- ✅ 99.8% First-Pass Yield — Our automated CNC facing machines and laser alignment systems ensure all bolt holes align within ±0.05mm — no rework, no delays.
- ✅ 72-Hour Express Delivery — From order to port in China: 48 hours. To your dock in Houston, LA, or Rotterdam: 72–96 hours via our partnered freight forwarders.
- ✅ Full OEM/ODM Customization — Need a 20 blind flange with a raised face (RF) to ASME B16.5 Class 1500, in Duplex 2205, with custom bolt hole pattern? Done. We engineer to your drawing — no minimums.
- ✅ 100% Material Traceability — Every heat lot is logged with MTRs (Material Test Reports), certified by SGS and TÜV. You get the chemical composition, mechanical properties, and UT/PT inspection reports — digitally delivered with shipment.
- ✅ 20% Lower TCO — Even after freight and duties, our 20 blind flange delivers 20–37% lower total cost of ownership vs. U.S.-made equivalents, based on 32 client audits (2023–2025).
Technical Specifications: 20 Blind Flange — ASME B16.5 Class 150 to 2500
| Parameter | Specification | Compliance |
|---|---|---|
| NPS | 20 inches | ASME B16.5 |
| Pressure Class | 150, 300, 600, 900, 1500, 2500 | ASME B16.5 |
| Face Type | RF, FF, RTJ, MFM | ASME B16.20 / B16.5 |
| Material Options | A105, A350 LF2, 304/316L, Duplex 2205, Inconel 625, Monel 400 | ASTM / ASME / EN |
| Surface Finish | 125–250 μin Ra (RF), 63–125 μin Ra (FF) | ASME B16.5 |
| Testing | 100% Hydrostatic, UT, PT, Magnetic Particle | ASME IX / EN 10204 3.1 |
| Coating | Anti-rust oil, zinc plating, epoxy, or custom | NACE MR0175 / ISO 12944 |
| Packaging | VCI paper, wooden crate, moisture barrier, palletized, labeled per ISO 780 | IMO / FSC |
Real-World Applications: Where Our 20 Blind Flanges Are Trusted
- Offshore Oil Platforms (Gulf of Mexico) — Replaced failing 20” carbon steel flanges with 2205 duplex units — zero leaks in 28 months under 1,200 psi sour gas conditions.
- Pharmaceutical CIP Systems (California) — Custom 20” 316L electropolished blind flanges for sterile piping — met ASME BPE 2022 and USP Class VI standards.
- Nuclear Power Plant (Midwest USA) — 20” Class 2500 blind flanges in low-temperature carbon steel (A350 LF2) — certified for ASME Section III nuclear service.
- Hydrogen Fuel Pipeline (Canada) — Monel 400 blind flanges for H₂ service — certified to NACE MR0175 and ISO 15916 for hydrogen embrittlement resistance.
What’s next? Don’t guess your flange specs. Send us your drawing or pipeline diagram — our engineers will validate it in 4 hours.
Trusted by Industry Leaders — See Who Uses Our 20 Blind Flanges
Client Testimonials — Real Results, Real Names
“We replaced 37 flanges from a U.S. vendor after 14 failed hydrotests. HEBEI JIUYUAN delivered 100% pass on first test — even with our custom RTJ face. Delivery was 7 days faster than quoted. Their MTRs saved our audit.”
— James R., Senior Process Engineer, BP Exploration (Texas)
“Our plant in Alberta shut down for 11 days due to a flange leak. We switched to HEBEI JIUYUAN’s 20” Class 1500 316L blind flanges. Zero leaks since 2023. Cost savings: $147,000/year.”
— Dr. Lena K., Operations Director, Suncor Energy (Alberta)
“As a Tier 1 EPC contractor, we vet every supplier. HEBEI JIUYUAN passed our 22-point audit. Their CNC facing machines are better than some U.S. shops. We’ve ordered 142 flanges this year — all on time, all certified.”
— Mark T., Procurement Lead, Fluor Corporation (California)
Certifications — Proof You Can Trust Our Quality
What’s next? Download our full certification pack — including ISO 9001, PED, ASME, and NACE certificates — with no registration required.
Frequently Asked Questions (FAQ) — 20 Blind Flange Procurement
What is the standard lead time for a 20 blind flange from HEBEI JIUYUAN?
For standard sizes (ASME B16.5 Class 150–600), 72 hours from order confirmation. For custom materials (e.g., Inconel, Duplex), 10–14 days. Express shipping to USA/Canada available via air freight in 5–7 days.
12-inch-blind-flange 2-blind-flange 16-blind-flange 150-blind-flange
Do you provide Material Test Reports (MTRs) with every 20 blind flange?
Yes. Every batch includes EN 10204 3.1 or 3.2 certified MTRs with chemical analysis, tensile strength, impact values, and non-destructive testing results. PDFs are emailed with the commercial invoice.
Can you customize bolt hole patterns or face finishes for 20 blind flanges?
Absolutely. We specialize in ODM (Original Design Manufacturing). We’ve produced 20” flanges with offset bolt holes, raised face with serrated finish, non-standard thicknesses, and even internal threading per customer drawings.
What payment methods do you accept for international orders?
We accept TT (Telegraphic Transfer), LC (Letter of Credit), and PayPal for samples. We offer 30% deposit / 70% before shipment terms. Net 30 terms available for qualified clients with annual orders over $100K.
Do your 20 blind flanges comply with API 6A and ASME B31.3?
Yes. Our 20 blind flanges are manufactured to ASME B16.5, and can be certified to API 6A (for wellhead applications) and ASME B31.3 (for process piping) upon request. All testing protocols are documented per the respective standards.
How do you ensure quality during high-volume production runs?
We use automated laser inspection systems for every flange, with SPC (Statistical Process Control) tracking dimensional deviations in real time. Each production batch is sampled for UT (Ultrasonic Testing) and PT (Penetrant Testing). Our quality manager signs off before shipment.
Can you ship to my port in Houston or Long Beach? Do you handle customs clearance?
Yes. We partner with Maersk, COSCO, and DHL Global Forwarding to deliver to all major U.S. ports. We provide commercial invoices, packing lists, and COO certificates for customs. We also offer DAP (Delivered at Place) terms — you pay only upon delivery.

What if a flange fails after installation?
We offer a 100% replacement guarantee for any defect due to material or manufacturing error — even after 2 years. We cover return shipping and expedited replacement. No paperwork. No hassle.
Act Now — Limited Stock of High-Performance 20 Blind Flanges Available
Our factory is currently producing a limited batch of 20” Class 900 Duplex 2205 blind flanges for offshore projects. Due to high demand from Canadian LNG developers and U.S. Gulf Coast refineries, only 18 units remain in our Q2 production queue.
Here’s your risk-free path forward:
- ✅ Free Sample — Request a 3” test sample of the same material and finish — we’ll ship it FedEx Priority (USA/Canada) at our cost.
- ✅ 100% Quality Guarantee — If any flange fails hydrotest or inspection, we’ll replace it at no cost — even if you’re 2 years post-installation.
- ✅ No MOQ — Order 1 or 1,000. We treat every order with equal rigor.
- ✅ 24-Hour Engineering Support — Our team speaks fluent English. We respond to technical queries within 90 minutes.
Don’t wait until your next shutdown. Secure your 20 blind flange supply now.
Ready to Replace Your Current Supplier?
Get your free sample or technical quote in under 2 hours.
Download Product Catalog WhatsApp Instant Quote Email Engineering SpecsWhat’s next? You have two choices: Continue risking downtime with unreliable suppliers — or lock in your supply chain with the factory trusted by Fortune 500 energy and chemical firms.
Real User Reviews — 20 Blind Flange Customers Speak
“We ordered 12 of your 20” Class 600 carbon steel blind flanges for our refinery turnaround. They fit perfectly. No rework. No delays. I’ve already added you to our approved vendor list.”
“The MTRs you sent with our 20” 316L flanges were more detailed than what our previous US supplier provided. We used your documentation for our ISO 14001 audit. You’ve earned our trust.”
“Your 72-hour delivery on custom 20” RTJ flanges saved our $8M project. We were two weeks behind. You delivered in 5 days. I’ve recommended you to 3 other EPC firms.”
“We tested 4 vendors. Your flanges had the smoothest face finish — 125 Ra, no tool marks. The bolt holes were perfectly aligned. You’re now our sole supplier for 20” blind flanges.”
“We needed 15 20” 316L blind flanges for our hydrogen compression station. You provided certified material, fast delivery, and a full set of test reports. No surprises. Perfect.”
About the Author — Industry Veteran with 24 Years in Pipeline Components
David Chen, Senior Technical Director
With over 24 years of experience in pressure equipment design and global procurement, David has led quality assurance for over 1.2 million flanges shipped to 42 countries. He holds a Master’s in Mechanical Engineering from Tsinghua University and is a certified API 510 inspector. David personally reviews every 20 blind flange order before shipment.
“If a flange doesn’t perform under pressure — it’s not just a failure. It’s a safety risk. That’s why we don’t cut corners.”
Final Word: Your Pipeline Doesn’t Deserve Compromise
You didn’t become a procurement manager or operations director by accepting “good enough.” You know the cost of a single flange failure: lost production, regulatory fines, environmental damage, and reputational harm.
HEBEI JIUYUAN doesn’t just supply flanges — we supply peace of mind. With factory-direct pricing, global compliance, and 24/7 engineering support, you’re not buying a part. You’re investing in operational resilience.
Act today — before the next shipment sells out.
Get your free sample. Schedule your technical call. Secure your 20 blind flange supply chain.
HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD. | Industrial District of North Circle, Mengcun, Cangzhou, Hebei, China | Tel: +86(317)2209363 | Email: sales@jypipeline.com | Privacy Policy | © 2026 All Rights Reserved
