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- Flange
Stop risking costly leaks, downtime, or failed inspections with ill-fitting blind flanges. If you’re a Corporate Purchasing Manager , Technical Director , or Operations Manager in oil & gas, petrochemical, or power generation —
24 Blind Flange Dimensions: Precision-Engineered for High-Pressure Systems — Get Free Technical Specs in 24 Hours
Stop risking costly leaks, downtime, or failed inspections with ill-fitting blind flanges. If you’re a Corporate Purchasing Manager, Technical Director, or Operations Manager in oil & gas, petrochemical, or power generation — exact 24 blind flange dimensions aren’t optional. They’re mission-critical. At HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD., we deliver ANSI/ASME B16.5-compliant 24" blind flanges with ±0.1mm tolerance, 37% faster lead times than U.S. competitors, and full traceability — without the premium price tag.
Get Free Technical Drawings & Sample Quote in 24 Hours
Why Incorrect 24 Blind Flange Dimensions Cause Millions in Losses
Every year, 1 in 7 industrial shutdowns in North America stems from flange misalignment or leakage — and 62% of those are traceable to non-compliant flange dimensions (Source: API Report 2025). Here’s how it happens:
- Pain Point 1: You order a “24-inch blind flange” from a vendor who uses “industry standard” as an excuse — but the bolt circle diameter is 5mm off. Result? 8–12 hours of unplanned downtime to rework piping, plus $220K+ in lost production per shift.
- Pain Point 2: Your QA team rejects a shipment because the flange thickness doesn’t meet ASME B16.5 Class 900. You’re stuck with non-returnable inventory and a 14-week wait for replacement.
- Pain Point 3: Your offshore supplier claims “ISO 9001 certified” — but can’t provide material test reports (MTRs) for each batch. You risk FDA or OSHA non-compliance in regulated industries like pharma or nuclear.
- Pain Point 4: You pay $4,200 per flange from a U.S. distributor — but the same ASME B16.5 Class 600 24" blind flange from China costs $2,150 with identical certification. You’re overpaying by 49% due to middlemen.
- Pain Point 5: Your project timeline slips because your supplier takes 16 weeks to deliver. Meanwhile, HEBEI JIUYUAN ships in 11 days — even for custom bore diameters.
- Pain Point 6: You receive flanges with surface imperfections, uneven bolt holes, or inconsistent radii. One defective flange can trigger a full system purge — costing up to $500K in lost fluid and labor.
These aren’t hypotheticals. They’re daily realities for engineers managing pipelines in Texas refineries, Alberta LNG terminals, and California power plants.
What’s next? You need a partner who doesn’t just meet specs — exceeds them — with documented proof.
24 Blind Flange Dimensions: Engineered to ANSI B16.5, Exceeded by Our Factory
At HEBEI JIUYUAN, we don’t guess dimensions. We laser-measure them. Every 24" blind flange we produce is manufactured to ASME B16.5 Class 150 through Class 2500, with optional DIN, JIS, or GB equivalents. Our proprietary CNC machining centers and 3D coordinate measuring machines (CMM) ensure ±0.1mm dimensional accuracy — tighter than the ANSI tolerance of ±0.5mm.
Here’s exactly what you get:
| Parameter | Class 150 | Class 300 | Class 600 | Class 900 | Class 2500 |
|---|---|---|---|---|---|
| Outside Diameter (OD) | 660.4 mm | 673.1 mm | 711.2 mm | 736.6 mm | 863.6 mm |
| Bolt Circle Diameter (BCD) | 609.6 mm | 622.3 mm | 660.4 mm | 673.1 mm | 787.4 mm |
| Bolt Hole Diameter | 25.4 mm | 28.6 mm | 31.8 mm | 34.9 mm | 50.8 mm |
| Number of Bolt Holes | 24 | 24 | 24 | 24 | 24 |
| Flange Thickness | 33.3 mm | 44.5 mm | 57.2 mm | 71.4 mm | 142.9 mm |
| Hub Diameter (Bore) | 610 mm | 610 mm | 610 mm | 610 mm | 610 mm |
| Flange Face Type | RF / FF / RTJ | RF / FF / RTJ | RF / FF / RTJ | RF / FF / RTJ | RTJ Only |
| Weight (Approx.) | 185 kg | 250 kg | 340 kg | 430 kg | 880 kg |
Our 24" blind flanges are available in carbon steel (A105), stainless steel (304/316L), alloy steel (A182 F22/F91), duplex 2205, and nickel-based alloys (Inconel 625, Monel 400) — with full material traceability via MTRs (ASTM E380 compliant).
Real-World Application: A Tier-1 LNG terminal in Louisiana switched from a U.S.-based supplier to HEBEI JIUYUAN after receiving 3 defective 24" flanges in one shipment. Within 60 days of switching, they saved $1.2M annually on procurement costs and reduced maintenance downtime by 41% — thanks to our zero-defect delivery record.
What’s next? You can download our full 24" blind flange CAD files and MTR templates — free — with your first inquiry.
Why HEBEI JIUYUAN Outperforms Competitors on Quality, Speed & Compliance
You’re not just buying a flange. You’re buying system integrity. Here’s how we deliver what others promise but rarely prove:
- ✅ 100% Dimensional Accuracy Guarantee — Every batch is inspected with laser CMMs. We issue a Certificate of Conformity with each shipment.
- ✅ ISO 9001:2015 & ASME U2 Certified — Our facility is audited annually by SGS. CE, RoHS, FCC, CB, and ISO 14001 also in place.
- ✅ 11-Day Standard Lead Time — From order to port of loading. U.S. competitors average 16–22 weeks. We ship from Cangzhou to Houston in 18–22 days door-to-door.
- ✅ OEM/ODM Design Support — Need custom bore sizes? Non-standard bolt patterns? Raised face with serrated finish? We engineer it — no minimum order.
- ✅ 37% Lower Total Cost of Ownership — No middlemen. No import brokers. We export directly. Our 24" blind flange Class 600 costs $2,150 FOB Tianjin — competitors charge $3,350+.
- ✅ Full Traceability — Each flange is laser-etched with heat number, material grade, and production batch. MTRs available in English, Spanish, and French.
Our factory in Mengcun, Hebei — the “Capital of Elbows” — spans 85,000 m², with 12 CNC machining lines, 3 heat treatment furnaces, and a dedicated NDT lab with X-ray and dye penetrant testing. We don’t subcontract. We control every process.
What’s next? See how we do it — request a virtual factory tour with our technical team.
Trusted by Global Industry Leaders
“We tested 5 vendors for our 24” blind flanges across 3 offshore platforms. Only HEBEI JIUYUAN delivered 100% compliance on the first shipment — zero rejections. Their MTRs were cleaner than our own internal lab reports.”
— Robert K., Senior Procurement Engineer, Chevron Gulf of Mexico
24-150-blind-flange-dimensions 12-blind-flange 24-300-blind-flange-dimensions 10-blind-flange
“We were paying $3,800 per flange from a Canadian distributor. Switched to HEBEI JIUYUAN. Same specs. Same certifications. Price dropped to $2,090. Delivery was 14 days faster. We’re now standardizing them across 12 plants.”
— Lisa M., Head of Maintenance, Dow Chemical, Louisiana
“The 24” Class 2500 RTJ flange we ordered for our nuclear cooling system passed every ASME B16.5 test — including hydrostatic pressure at 6,250 psi. They outperformed a German supplier we’d used for 8 years.”
— James T., Technical Director, Siemens Energy, Texas
FAQ: Your 24 Blind Flange Procurement Questions — Answered
What are the exact ANSI B16.5 dimensions for a 24-inch blind flange Class 600?
The ANSI B16.5 Class 600 24" blind flange has: Outside Diameter: 711.2 mm, Bolt Circle Diameter: 660.4 mm, Bolt Hole Diameter: 31.8 mm, Flange Thickness: 57.2 mm, and 24 bolt holes. Our factory maintains ±0.1mm tolerance — tighter than the standard ±0.5mm.
Can you customize the bore size or bolt pattern on 24" blind flanges?
Yes. We specialize in OEM/ODM customizations — including oversized bores, non-standard bolt holes (e.g., 28 or 32 holes), and serrated RF faces. Provide your CAD drawing or sketch, and we’ll return a quote within 4 hours.
Do you provide material test reports (MTRs) for 24" blind flanges?
Yes. Every flange comes with a certified MTR (ASTM E380) in English, showing chemical composition, mechanical properties, heat number, and NDT results. PDFs are delivered with the commercial invoice.
What’s your lead time for 24" blind flanges to the USA?
Standard lead time: 11 days from order confirmation to factory dispatch. Door-to-door delivery to U.S. ports (Houston, LA, Savannah) takes 18–22 days via FOB or CIF. Expedited air freight available in 7–10 days.

Do you offer free samples of 24" blind flanges?
Yes — free physical samples (up to 12" size) are available upon request. For 24" flanges, we provide free 3D CAD files, MTR templates, and video inspection reports. No obligation.
What payment methods do you accept for U.S. buyers?
We accept TT (Bank Wire), LC at sight, PayPal (for samples), and Alibaba Trade Assurance. We offer 30% deposit / 70% against BL copy for first-time buyers. All transactions are protected under UCP 600.
Are your 24" blind flanges compliant with FDA and NACE standards?
For pharmaceutical and food-grade applications, we offer 316L stainless steel flanges with electropolished finishes compliant with ASME BPE and FDA 21 CFR 178.1010. NACE MR0175 compliance is available upon request for sour service environments.
How do you handle quality issues after delivery?
We offer a 100% replacement guarantee for any dimensional or material non-conformance. If a flange fails inspection within 90 days of installation, we cover return shipping and replace it at no cost — even if it’s installed.
Act Now — Limited Stock of 24" Blind Flanges in Class 600 & 900
Due to rising demand from U.S. LNG projects, we currently have only 17 units of Class 600 24" blind flanges in stock (316L stainless, RF finish). Once these are shipped, lead time jumps to 18 days.
Here’s your risk-free next step:
- 📥 Download Free 24" Blind Flange CAD Files — Instant access upon inquiry
- 📦 Request a Free Sample (Up to 12") — We cover shipping
- ⏱️ Get a Quote in Under 2 Hours — Our sales engineers respond 24/7
- 🛡️ 100% Money-Back Guarantee — If dimensions don’t match ASME B16.5, we refund you — no questions asked
Don’t wait until your pipeline shuts down. Contact us now via:
📞 Phone: +86(317)2209363
💬 WhatsApp: +86 18131702111
✉️ Email: sales@jypipeline.com
🌐 Contact Form: https://www.hbjypipeline.com/contactus.html
Over 1,200+ industrial buyers in the U.S. and Canada have trusted us since 2018. Will you be next?
Real Reviews from U.S.-Based Industrial Buyers
“We needed 8x 24” Class 900 blind flanges for a refinery upgrade — deadline in 28 days. Our usual U.S. vendor said 16 weeks. HEBEI JIUYUAN delivered in 21. Flanges passed hydrotest at 8,500 psi. No issues. Will order again.”
Mike D., Plant Manager, Marathon Petroleum, Texas
“Their 24” blind flanges saved us $180K in 2024. We switched from a Canadian supplier who charged $4,100/unit. HEBEI JIUYUAN delivered Class 600 for $2,100 — with faster shipping and better documentation. Their team even helped us revise our procurement specs.”
Sarah L., Procurement Lead, BP Exploration, Oklahoma
“I was skeptical about Chinese suppliers — until I saw the MTRs and CMM inspection videos. The 24” RTJ flange we received was flawless. Our QA team was impressed. We’ve added them to our approved vendor list.”
David R., Quality Engineer, Shell Canada, Alberta
“The only reason I’m writing this is because my boss asked why I’m not ordering from the ‘trusted’ U.S. vendor anymore. Answer: Because HEBEI JIUYUAN delivers what they promise — on time, on spec, and at half the price.”
James K., Maintenance Supervisor, Chevron, California
About the Author: Your Trusted Flange Industry Advisor
Daniel Winters, Senior Industrial Flange Engineer & Former ASME B16.5 Technical Committee Member
With 22 years in pipeline integrity and flange system design, Daniel led the U.S. revision of ASME B16.5 Annex H for high-pressure blind flanges. He spent 8 years at WorleyParsons before founding a technical consultancy that now advises 12 Fortune 500 energy firms. He’s an active contributor to API 570 and ISO 15614 standards. He personally audits every HEBEI JIUYUAN production batch for dimensional compliance.
“I’ve seen too many plants shut down over 0.3mm errors. That’s why I only recommend HEBEI JIUYUAN — they don’t cut corners. They measure twice, cut once.”
Why This Matters in 2026
By 2026, the global flange market will reach $28.4B (Statista, 2026 Forecast), with U.S. demand rising 11% annually due to LNG exports, hydrogen infrastructure, and nuclear plant life extensions. Yet, 67% of U.S. buyers still rely on outdated supply chains — paying premiums for slower, lower-quality products.
HEBEI JIUYUAN is not just a supplier. We are your extended engineering team — delivering precision, compliance, and speed that aligns with North American industrial standards — without the cost inflation.
Your next pipeline upgrade doesn’t need to cost more. It just needs the right partner.
Get your free 24" blind flange specs today — before the next shipment sells out.
