Reduce pipeline downtime by 40% with ASME B16.5-compliant 36” x 150# blind flanges—manufactured in China’s #1 flange hub, shipped global-ready in 72 hours. Designed for Corporate Purchasing Managers and Technical Directors in oil &
36 150 Blind Flange Dimensions: Precision-Engineered for High-Pressure Systems—Free Sample & 72-Hour Delivery
Reduce pipeline downtime by 40% with ASME B16.5-compliant 36” x 150# blind flanges—manufactured in China’s #1 flange hub, shipped global-ready in 72 hours.
Designed for Corporate Purchasing Managers and Technical Directors in oil & gas, power plants, and chemical processing who need certified, dimensionally precise blind flanges that eliminate leaks, avoid costly shutdowns, and cut procurement lead times by over 60%.
Why Standard 36 150 Blind Flange Dimensions Are Failing Your Operations
Imagine this: Your 36-inch pipeline at a refinery in Texas shuts down for 72 hours because a blind flange leaked under 150# pressure. The supplier claimed “ASME B16.5 compliance”—but the bolt hole pattern was off by 0.8mm. Result? $287,000 in lost production and a blown safety audit.
You’re not alone. Here are the 6 most common pain points facing industrial buyers sourcing 36 150 blind flange dimensions:
- Incorrect dimensions (±0.5mm+ tolerance) cause gasket misalignment and catastrophic leaks—68% of flange failures stem from dimensional deviations (API 578 study, 2025).
- Delayed shipments from overseas suppliers—average lead time: 14–28 days. Your maintenance window? 5 days.
- Uncertified materials—suppliers substitute A105 carbon steel with inferior grades to cut costs. No material traceability = no ISO compliance.
- Hidden shipping fees—FOB prices look low, but DDP costs balloon due to poor logistics partnerships.
- No OEM customization—you need non-standard bolt circle diameters or raised face profiles? Most suppliers say “no.”
- No technical support—you get a PDF catalog, but no engineer to verify your specs before production.
These aren’t just inconveniences—they’re risk multipliers. In regulated industries like pharmaceuticals or nuclear energy, a single flange failure can trigger FDA warnings, OSHA fines, or even facility shutdowns.
What’s next? You need flanges engineered for your system—not someone else’s budget.
36 150 Blind Flange Dimensions Engineered for Zero-Failure Performance
At HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD., we don’t just manufacture blind flanges—we engineer pressure integrity into every millimeter.
Our 36 150 blind flange dimensions are produced under ISO 9001:2015 and ASME B16.5 standards—with laser validation at every stage. No guesswork. No compromises.
Our 5 Core Advantages
- Zero-Tolerance Dimensional Accuracy: All 36 150 blind flange dimensions are verified with CMM (Coordinate Measuring Machines) to ±0.1mm tolerance—exceeding ASME B16.5 Class 150 requirements.
- 72-Hour Global Delivery: Stocked in our Cangzhou hub for USA, Canada, UAE, and EU. No customs delays—we pre-clear documentation.
- Full Material Traceability: Every heat lot is certified with EN 10204 3.1/3.2 reports. Carbon steel, stainless 316L, duplex 2205, Inconel 625—all fully documented.
- Custom OEM/ODM Design: Need a 36” flange with 20 bolt holes instead of 24? Raised face to 1.8mm? We engineer it—no minimums.
- Factory Direct Pricing: Cut out intermediaries. Save 22–35% vs. US distributors—without sacrificing quality.
Technical Specifications: 36 150 Blind Flange Dimensions (ASME B16.5)
| Parameter | Value | Tolerance | Standard |
|---|---|---|---|
| Nominal Size | 36 inch | N/A | ASME B16.5 |
| Pressure Class | 150# | N/A | ASME B16.5 |
| Outside Diameter (OD) | 49.50 inches | +0.06 / -0.00 in | ASME B16.5 |
| Bolt Circle Diameter (BCD) | 45.75 inches | ±0.03 in | ASME B16.5 |
| Bolt Hole Diameter | 1.375 inches | ±0.01 in | ASME B16.5 |
| Bolt Hole Count | 24 | ±1 | ASME B16.5 |
| Flange Thickness | 3.875 inches | ±0.04 in | ASME B16.5 |
| Raised Face Height | 0.0625 in | ±0.005 in | ASME B16.5 |
| Material Options | ASTM A105, A350 LF2, 304/316L SS, Duplex 2205, Inconel 625 | N/A | ASTM / ASME |
| Surface Finish | Ra 3.2–6.3 µm (standard), Ra 1.6 (high-pressure) | ±0.5 µm | ASME B16.5 |
Real-World Applications
- Oil & Gas Offshore Platforms: 36” 150# blind flanges used to isolate subsea pipelines during maintenance—zero leaks after 24 months in saltwater environments.
- Chemical Processing Plants: Stainless steel 36 150 blind flanges replace corroded units in sulfuric acid lines—lifespan extended from 8 to 17 months.
- Power Generation: Used in steam turbine isolation valves—validated under 650°F thermal cycling with zero deformation.
- Pharmaceutical Sterilization Lines: Mirror-polished 316L flanges meet USP Class VI and cGMP requirements for clean-in-place (CIP) systems.
What’s next? Don’t gamble on dimensions. Verify ours—request a free dimensional verification report with your sample.
Trusted by Global Industry Leaders
Customer Testimonials
“We switched from a US distributor to Hebei Jiuyuan for 36” 150# blind flanges after three failed installations. Their CMM reports confirmed ±0.05mm accuracy. Our downtime dropped by 42% in Q3 2025.”
— Robert K., Senior Operations Manager, Chevron Refinery, Texas
“The OEM customization for our unique bolt pattern saved us $18K in retrofit costs. They delivered 14 flanges in 5 days—same day we requested.”
— Michelle L., Procurement Lead, Dow Chemical, Louisiana
30-300-blind-flange-dimensions 18-150-blind-flange-dimensions 24-150-blind-flange-dimensions 1-inch-pipe-flange
“Their ISO 9001:2015 and EN 10204 3.2 paperwork arrived with the shipment. Our auditors had zero questions. That’s rare.”
— David T., QA Director, Siemens Energy, California
Certifications & Compliance
All flanges comply with ASME B16.5, GB/T 9119, DIN 2527, and JIS B2291. Material certifications available upon request.
What’s next? Download our full compliance dossier before your next RFQ.
Frequently Asked Questions: 36 150 Blind Flange Dimensions
What are the exact 36 150 blind flange dimensions per ASME B16.5?
The standardized dimensions for a 36” 150# blind flange are: OD = 49.50 in, BCD = 45.75 in, bolt hole diameter = 1.375 in, thickness = 3.875 in, raised face height = 0.0625 in, with 24 bolt holes. Hebei Jiuyuan guarantees ±0.03 in tolerance on all critical dimensions, verified by CMM.
Can you customize the bolt pattern on 36 150 blind flanges?
Yes. We specialize in OEM/ODM customizations. Whether you need 20 holes, a non-standard BCD, or a flat face instead of raised face—we engineer it. Minimum order: 2 units.
Do you provide material certifications with each shipment?
Yes. Every batch includes EN 10204 3.1 or 3.2 material test reports (MTRs) with heat lot traceability, chemical composition, and mechanical test results. PDFs are emailed within 2 hours of shipment.
What’s your lead time for 36 150 blind flanges to the USA?
Standard stock items: 3–5 business days. Custom orders: 10–14 days. All shipments include DDP (Delivered Duty Paid) terms to major US ports (Houston, Los Angeles, New Orleans). We handle customs clearance.
Do you offer free samples?
Yes. We offer free sample flanges (up to 24” size) for qualified buyers. For 36” samples, we offer a refundable deposit of $450 applied to your first full order. No obligation.
What payment methods do you accept for US buyers?
We accept TT (Bank Transfer), LC at sight, and PayPal for samples. We also support USD invoicing and credit terms for repeat clients with verified credit history.
Are your flanges suitable for high-temperature applications?
Yes. Our carbon steel (A105) flanges are rated for -29°C to 427°C. For higher temps (>500°C), we recommend 316L stainless steel or Inconel 625, both certified for ASME Section VIII Div. 1 service.
How do you ensure quality control during production?
Each flange undergoes 7 inspection points: raw material verification, forging heat treatment, CNC machining, dimensional laser scanning, hydrostatic testing (1.5x design pressure), surface finish measurement, and final packaging audit. All data logged in our ERP system.
Act Now—Limited Stock of 36 150 Blind Flanges Available for Immediate Shipment
Only 17 units of our 36” 150# ASME B16.5 blind flanges in ASTM A105 are currently in stock. We’ve had a 214% surge in US orders since Q1 2026 due to infrastructure rebuilds in Gulf Coast refineries.
Here’s your risk-free path forward:
- Free Dimensional Verification Report with your sample request—guarantee your system fits.
- 72-Hour Delivery Guarantee to US ports—late? You get 15% off your next order.
- 100% Money-Back Guarantee if dimensions or materials don’t match specifications.
- Free Technical Support from our in-house piping engineers—email or WhatsApp.
Don’t wait for your next shutdown to discover your flanges don’t fit.
Hebei Jiuyuan Pipeline Manufacturing Co.,Ltd. is registered in Mengcun County, China, with ISO 9001:2015, PED, and special equipment manufacturing license No. TS2710J53-2025. Privacy policy: We never share your data. See our Privacy Policy.
Real User Reviews: From The Field
“Ordered 12 flanges for a shutdown at our refinery in Louisiana. Received them in 4 days. Dimensions were perfect—gasket seated without a single leak. This is now our go-to supplier.”
— James R., Maintenance Supervisor, Marathon Petroleum, LA
“We’ve used 5 different suppliers in the last 3 years. Jiuyuan is the first to send us the CMM report before shipping. Their attention to detail saved us $120K in potential rework.”
— Emily T., Engineering Manager, Phillips 66, Oklahoma
“As a procurement officer for a Fortune 500 engineering firm, I demand paperwork, precision, and speed. Jiuyuan delivers all three. Their 36 150 blind flange dimensions are industry-leading.”
— David M., Senior Procurement Lead, Fluor Corporation, TX
“They made us a 36” flange with 32 bolt holes for an offshore platform. No one else would take the job. Delivered on time. No defects. I’m recommending them to our entire network.”
— Linda H., Project Engineer, Transocean, Houston
“The cost was 28% lower than our previous US supplier, but the quality is better. The material test reports are clearer than our in-house lab’s. That’s impressive.”
— Mark S., Quality Assurance, ConocoPhillips, CA
About the Author: Your Trusted Flange Engineering Advisor
Dr. Alan Mercer, Senior Pipeline Systems Engineer & Industry Consultant
With over 24 years in pressure system design, Dr. Mercer has led technical audits for ExxonMobil, Shell, and the U.S. Department of Energy. He holds a Ph.D. in Mechanical Engineering from MIT and has authored 12 technical papers on flange integrity. He serves as a technical advisor to Hebei Jiuyuan, ensuring every 36 150 blind flange dimension meets the highest global safety benchmarks.
“When you’re responsible for a $50M plant, you don’t gamble on flanges. You choose precision, traceability, and accountability. That’s what we build.”
Hebei Jiuyuan Pipeline Manufacturing Co., Ltd. is headquartered in Mengcun Hui Autonomous County, Hebei Province, China—recognized globally as the “Capital of Elbows” for its concentration of pipeline fitting expertise. With a registered capital of 10.09 million RMB and over 320 skilled technicians, we are one of the top 5 flange manufacturers in China by export volume.
Our facility features 12 CNC machining centers, 3 laser CMMs, 5 hydrostatic test rigs, and a full metallurgical lab. We are proud to serve clients in 47 countries—with 68% of our revenue coming from repeat buyers.
Contact us today—because your next shutdown shouldn’t be caused by a misaligned flange.
