Asme B16.5 Blind Flange

ASME B16.5 Blind Flange - Professional Titanium Solutions

XI'AN LINHUI specializes in manufacturing high-performance ASME B16.5 Blind Flange products compliant with ANSI, BS, DIN, JIS standards. Our flanges cover sizes from 1/2"-96" (DN40-DN1600) with CLASS 600 pressure ratings. With 21 years of titanium manufacturing expertise, two factories, and 30 production lines yielding 800 tons annually, we deliver superior quality backed by ISO/SGS/TUV certification.

Surface treatments include anti-rust oil, black painting, and yellow painting. Fast global delivery via DHL, FEDEX, air, or sea freight ensures your project timelines are met.

Key Features & Benefits

For pressure testing, maintenance access, and system termination, our ASME B16.5 Blind Flange offers complete pipeline isolation. Flow-through hazards are eliminated by the solid disk design.

Compared to copper-nickel alloys, titanium construction extends service life by 80% by resisting chloride stress corrosion cracking in marine applications. Both downtime and lifecycle costs are decreased.

Precision machining ensures perfect gasket sealing on raised face or RTJ profiles. Each flange withstands full system pressure safely.

 Specifications

Manufacturing Process

Your ASME B16.5 Blind Flange begins with certified titanium sponge processed under vacuum to prevent oxygen contamination. Hot forging shapes the disk while maintaining grain structure integrity.

CNC machining ensures dimensional accuracy per ASME B16.5 tables. Sealing faces achieve Ra 3.2-6.3µm roughness for optimal gasket contact.

Heat treatment relieves residual stress without compromising corrosion resistance. Final pickling removes alpha case formed during forging.

Quality Inspection

Before being shipped, every flange is put through a rigorous testing process: Dimensional checks verify that bore diameter, bolt hole spacing, and flange thickness meet ASME B16.5 tolerances; Positive Material Identification (PMI) verifies chemical composition and prevents grade mix-ups; Ultrasonic testing finds internal voids or inclusions invisible to the eye; Dye penetrant inspection reveals surface cracks on critical sealing faces; and EN 10204 3.1 certificates offer complete traceability through heat numbers.---

Applications Of Asme B16.5 Blind Flange

Offshore Oil & Gas: Covers cooling loops and firewater systems on platforms where seawater quickly corrodes steel. Titanium reduces the risk of corrosion caused by microorganisms.

Chlor-Alkali Processing: During repair, moist chlorine gas lines are blocked. Hazardous spills that dissolve weaker metals in a matter of hours are avoided.

High-pressure seawater injection piping is terminated in desalination plants. The substance does not pit when exposed to stagnant chloride conditions.

Geothermal Power: Protects brine pipework from acidic environments and erosive particles. The integrity of the vacuum seal is protected by superior abrasion resistance.

Our Factory

Linhui operates a modern factory equipped with cutting-edge technology, allowing us to produce high-quality Flange that meet global standards. We are committed to continuous improvement and providing exceptional value to our clients worldwide.

Certification

Our products are certified by globally recognized bodies such as:

• ISO 9001:2015 QMS
• TUV Nord AD2000-W0 Certification
• PED 2014/68/EU Certification
• Additional certifications from CCS, ABS, DNV, BV, LLOYD'S, GL, and more.

Third-party inspection agencies, including DNV, SGS, and Moody's, regularly validate our compliance with industry standards.

Export Markets

Our long-standing relationships with CEFC, PTT, PETRONAS, and LUKOIL attest to our quality; we have supplied Flange products to more than 60 countries in North America, the Middle East, Southeast Asia, and the CIS. Our multilingual staff facilitates communication in English, Spanish, and Arabic for smooth international transactions.---

Why Choose Us

21 Years of Experience: Trial-and-error risks are eliminated for your projects thanks to two decades of titanium forging expertise.

Factory Direct Pricing: You receive cost reductions directly while keeping quality control because there are no middlemen involved.

Flexible MOQ: Before making significant commitments, trial batches are supported by stock orders that begin at 100 kg.

Rush Capability: Standard production takes 15–25 days to finish, while stock items ship in 3–7 days. Orders that are urgent are fulfilled.

Engineering Support: Internal metallurgists help with pressure-temperature rating computations and material selection.

Packaging & Shipping

For overseas shipping, flanges are packaged in hardwood crates and protected with anti-rust wrapping. Depending on your urgency, we set up air, sea, DHL, or FEDEX freight.

Dimensional reports, NDT documentation, and mill test certifications are included with every shipment. When necessary, fumigation certificates are given for wooden packaging.

FAQ

Q: Can titanium blind flanges connect to stainless steel piping?

A: Dimensionally yes, but use isolation gasket kits to prevent galvanic corrosion when electrolytes like seawater are present.

Q: Do you offer custom bolt hole patterns?

A: Absolutely. Provide your drawing and we'll review within 24 hours for feasibility.

Q: What gaskets work best?

A: PTFE or spiral wound gaskets with titanium windings prevent crevice corrosion. Avoid graphite with strong oxidizers.

Q: Is post-weld heat treatment needed?

A: Typically not for Gr2 and Gr5 corrosion applications, but may be specified for dimensional stability in complex piping.

Q: Why choose titanium over steel?

A: When chloride corrosion, weight reduction, or biocompatibility matters, titanium's lifecycle cost advantage offsets higher initial price.

Request a Quote

Are you ready to achieve reliable pipeline isolation using ASME B16.5 blind flanges? Contact our engineering team at linhui@lhtitanium.com with your specifications. Receive detailed quotations within 4 hours and expert material guidance for your application.