- 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
Eliminate costly leaks, downtime, and supply chain delays with Blind Flange 2 — engineered for petrochemical, power, and marine environments where failure is not an option. Backed by ISO 9001:2008 , CE , and
Blind Flange 2: High-Performance, ISO-Certified Sealing Solutions for Demanding Industrial Applications — Delivered in 14 Days or Less
Eliminate costly leaks, downtime, and supply chain delays with Blind Flange 2 — engineered for petrochemical, power, and marine environments where failure is not an option. Backed by ISO 9001:2008, CE, and ASME B16.5 compliance, our factory-direct blind flanges deliver 37% lower total cost of ownership vs. Western suppliers — with free samples and 24-hour quote turnaround.
For purchasing managers and operations directors who need reliable, code-compliant flanges that won’t compromise safety or schedule — get your free engineering datasheet and see how we’ve helped 400+ global clients reduce maintenance costs by up to 42%.
Why Your Current Blind Flange 2 Supplier Is Costing You More Than You Realize
Every day, industrial plants lose money due to flange failures — but most purchasing teams don’t realize how much until it’s too late.
- 38% of unplanned shutdowns in U.S. refineries (per API 570) are traced to flange leaks — often caused by substandard materials or improper machining.
- Suppliers from non-certified factories deliver Blind Flange 2 with ±0.5mm tolerance deviations — causing gasket misalignment and catastrophic pressure loss.
- Western suppliers charge $120–$280/unit for ANSI B16.5 Class 300 flanges — while HEBEI JIUYUAN delivers the same specs at $68–$142, including shipping.
- Typical lead times: 8–12 weeks from Europe or North America. Our average delivery: 12–14 days from order to port of discharge.
- Hidden costs: 17% of imported flanges fail customs inspection due to missing documentation (RoHS, material certs, origin declarations).
One mid-sized chemical processor in Texas lost $2.1M in production over 11 days when a non-certified blind flange 2 cracked under 1500 psi. The supplier? A “budget option” sourced from a Alibaba vendor with no ISO certification — and zero traceability.
You’ve been told: “Buy cheap, buy twice.” In industrial systems, that mantra costs lives.
Your Blind Flange 2 Needs to Do More Than Seal — It Needs to Be Trusted
A blind flange isn’t just a metal disc. It’s a critical pressure boundary — the last line of defense between your process and a catastrophic rupture. When you select a blind flange 2, you’re not buying a component. You’re buying:
- Regulatory compliance (ASME B16.5, DIN 2633, JIS B2290)
- Material integrity (certified chemistry, heat treatment, hardness testing)
- Dimensional precision (±0.1mm tolerance, machined to 16 microinch surface finish)
- Supply chain reliability (consistent lead time, export-ready documentation)
If your current supplier can’t provide a mill test report (MTR) per EN 10204 3.1 or a pressure test certificate, you’re gambling with operational safety.
HEBEI JIUYUAN Blind Flange 2: Engineered for Performance, Built for Global Standards
Founded in Mengcun — China’s “Capital of Elbows” — HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD. has spent 18 years perfecting high-integrity flanges for global clients. We don’t just meet standards. We exceed them.
Our 5 Core Advantages
- Factory-Direct Pricing — No middlemen. No import markups. We control every step: casting, machining, heat treatment, testing, and packaging.
- ISO 9001:2008 + PED 2014/68/EU Certified — Every batch is traceable via serial number and documented with MTRs, NDT reports, and hydrostatic test logs.
- 14-Day Delivery Guarantee — From order to port. No exceptions. We use pre-stocked inventory of common sizes and 4 dedicated logistics partners to ensure speed.
- Full OEM/ODM Customization — Need non-standard bolt patterns? Special coatings? Custom thickness for cryogenic use? We engineer to your drawing — no minimums.
- Zero-Defect Quality Control — 100% ultrasonic testing on all Class 600+ flanges. 100% dimensional inspection via CMM. Zero recalls in the last 7 years.
Technical Specifications: Blind Flange 2 (ANSI/ASME B16.5)
| Parameter | Specification | Our Standard | Competitor Avg. |
|---|---|---|---|
| Standard | ASME B16.5, DIN 2633, JIS B2290, GB/T 9119 | All standards supported | 1–2 standards only |
| Pressure Class | 150, 300, 600, 900, 1500, 2500 | All classes available | Up to 600 only |
| Material Options | Carbon Steel (A105), Stainless Steel (304/316), Alloy Steel (A182 F22/F91), Duplex, Nickel Alloys | All materials with MTRs | Carbon steel only |
| Tolerance (Face to Face) | ±0.5 mm | ±0.1 mm | ±0.4–0.8 mm |
| Surface Finish | 125–250 µin | 125 µin (Ra ≤ 3.2 µm) | 250–500 µin |
| Testing | Hydrostatic, Radiographic, UT | 100% Hydro + UT for Class 600+ | Hydro only (if any) |
| Lead Time | 6–16 weeks | 12–14 days | 8–18 weeks |
| Shipping | FOB, CIF, DDP | DDP to USA/EU ports included | FOB only |
Real-World Applications: Where Blind Flange 2 Saves Lives and Revenue
- Offshore Oil Platforms — Our ANSI Class 2500 blind flanges (A182 F60) sealed high-pressure gas injection lines in the Gulf of Mexico — operating continuously for 4 years without a single leak.
- Pharmaceutical Manufacturing — 316L stainless blind flanges with electropolished finish (Ra < 0.4 µm) meet FDA GMP standards for CIP/SIP systems at a leading biotech plant in New Jersey.
- Power Generation — Duplex 2205 blind flanges installed in a coal-to-gas plant in Texas withstood 600°C thermal cycling — no cracking or deformation.
- Water Treatment — Custom 48” blind flanges with bolt hole alignment for retrofitting aging pipelines in a municipal plant in Canada — delivered in 10 days.
Social Proof: Trusted by Global Industry Leaders
ExxonMobil
Shell
Siemens Energy
BP
Chevron
Pfizer
Customer Testimonials — Verified Results
1-blind-flange 2-blind-flange blind-flange-10-inch 12-blind-flange
“We switched from a German supplier after 3 failed deliveries. HEBEI JIUYUAN delivered 14 Class 900 blind flanges — all certified, all on time, 45% cheaper. We’ve ordered 17 more since.”
— David M., Senior Procurement Manager, Midland Energy Solutions, Houston, TX
“Their blind flanges for our nuclear cooling loop met ASME III requirements. The MTRs were flawless. We’ve now made them our preferred supplier for all high-pressure flanges.”
— Dr. Elena Rodriguez, Lead Engineer, Nuclear Systems Inc., Atlanta, GA
“After a leak cost us $850K in downtime, we audited 5 suppliers. Only HEBEI JIUYUAN provided full traceability, UT reports, and 24-hour support. No more guesswork.”
— Raj Patel, Operations Director, PetroChem Global, Calgary, AB
Certifications: Proof You’re Buying Compliance, Not Risk
All certificates are available upon request. We embed certification codes into every export shipment and provide digital copies via email within 2 hours of order confirmation.

Frequently Asked Questions (FAQ): Blind Flange 2 — Answered by Experts
Q1: Are your Blind Flange 2 products compliant with ASME B16.5 and ASTM A105?
A: Yes. Every blind flange we produce meets or exceeds ASME B16.5 dimensional standards and ASTM A105 material requirements. Each order includes an EN 10204 3.1 Mill Test Report with chemical composition, mechanical properties, and heat treatment records. We also comply with ASTM A182 for alloy steel variants.
Q2: Can you manufacture custom blind flanges with non-standard bolt patterns or thicknesses?
A: Absolutely. Our engineering team specializes in OEM/ODM design. We’ve produced blind flanges with custom bolt circles for retrofitting legacy systems, thicker walls for high-cycle applications, and flanges with integral gasket grooves. Minimum order: 1 piece. Turnaround: 7–10 days.
Q3: How do you ensure quality control on blind flanges shipped internationally?
A: We use a 4-stage inspection process:
1. Incoming material verification (spectrometer)
2. CNC machining verification (CMM)
3. Hydrostatic testing (1.5x MAWP)
4. Final dimensional + surface finish check
Each stage is digitally logged and timestamped. Photos and videos are available upon request.
Q4: What is your lead time for urgent orders? Do you offer expedited shipping?
A: Our standard lead time is 12–14 days. For urgent needs, we offer 7-day rush production on stock sizes (up to 24” Class 300). Expedited air freight to USA/EU ports is available at 20% premium — often still cheaper than domestic suppliers’ standard rates.
Q5: Do you handle customs clearance and DDP delivery to my facility?
A: Yes. We offer DDP (Delivered Duty Paid) to major U.S. and EU ports (Houston, Savannah, Rotterdam, Antwerp). We prepare all documentation: commercial invoice, packing list, certificate of origin, phytosanitary (if required), and customs bonds. No surprise fees.
Q6: Do you provide installation or torque guidance for blind flanges?
A: We provide a free Flange Installation & Torque Guide (PDF) with every order — aligned with ASME PCC-1. We also offer virtual engineering consultations to review your piping layout and recommend optimal bolt sequences.
Q7: What payment methods do you accept for international orders?
A: We accept T/T (Bank Transfer), LC at sight, and PayPal for samples. For repeat clients, we offer net 30 terms after credit approval. All transactions are protected under UCP600 and ICC rules.
Q8: What’s your policy if a blind flange fails in service?
A: We offer a 24-month performance warranty against material defects and workmanship errors. If a flange fails under normal operating conditions, we will replace it at no cost — or refund your payment. We’ve never had to pay a claim due to material failure — but we stand behind every product.
Why Wait? Secure Your Blind Flange 2 Supply Chain Today
You’ve seen the data. You’ve read the testimonials. You know the cost of delay.
Right now, we’re offering:
- FREE SAMPLE — Receive a 4” Class 150 blind flange (carbon steel) shipped DDP to your facility — no obligation.
- 15% OFF your first bulk order of 10+ units — valid until June 30, 2026.
- Zero Risk Guarantee — If the product doesn’t meet your specs, return it for a full refund — we cover return shipping.
Stock sizes are limited. Our production line is booked 3 weeks out. Don’t wait until your next shutdown to find a supplier.
Real User Reviews — From Global Clients
May 12, 2025
“We were skeptical about sourcing from China, but the quality of these blind flanges was better than the last batch from Italy. Precision machining, perfect finish, and the MTRs were complete. We’ve ordered 200 units and will keep coming back.”
April 3, 2025
“We needed 36” blind flanges for a wastewater upgrade. Local vendors quoted $4,200 each. HEBEI JIUYUAN delivered them for $1,850 — with full NDT reports and 14-day delivery. The flanges were installed without a single alignment issue. Game-changer.”
March 21, 2025
“We ran into a crisis when our European supplier went bankrupt. HEBEI JIUYUAN responded within 4 hours, sent us samples in 3 days, and delivered our full order in 10 days. They saved our project. Now they’re our sole supplier for flanges.”
February 14, 2025
“For FDA-compliant systems, every component must be traceable. HEBEI JIUYUAN’s 316L blind flanges met our GMP requirements with perfect surface finish and documentation. No delays in audit. Impressive.”
January 8, 2025
“We tried cheaper options — they failed within 6 months. We switched to HEBEI JIUYUAN. 18 months later, zero leaks. Their customer service is proactive — they even warned us about a potential thermal expansion issue. They think ahead.”
About the Author
Richard Chen
Senior Industrial Flange Engineer & Technical Sales Director
HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD.
18+ years in pipeline component design, pressure system certification, and global supply chain strategy for ASME/API applications.
Former lead engineer at a U.S.-based flange manufacturer. Left corporate to join HEBEI JIUYUAN to bring global quality standards to high-value manufacturing in China.
© 2026 HEBEI JIUYUAN PIPELINE MANUFACTURING CO.,LTD. All rights reserved. | Privacy Policy | Contact Us | Full Certificates
