Threaded Flanges
Standard: ASNI/ASTMB16.5 / 16.36/16.47A/16.47B B2220 – 2001, DIN2527/2636/2637/2638/2566/2576/2633/2635/2642/2653/2655.
Pressure Rate: 150LBS to 2500LBS / PN10 to PN400
Dimension: 1/2" to 48"
Material: Carbon steel, Alloy Steel, Stainless steel.
Thread type: NP / BSP
Threaded Flanges - High-Pressure Industrial Connection Solutions
XI AN LINHUI IMPORT AND EXPORT Co., LTD. delivers industrial-grade Threaded Flanges engineered to ASME B16.5/16.36/16.47A/16.47B and DIN 2527/2636/2638 standards. Our product range covers pressure ratings from 150LBS to 2500LBS (PN10 to PN400), with dimensions spanning 1/2" to 48". Available in Carbon Steel, Alloy Steel, and Stainless Steel materials, each flange features precision-machined NPT or BSP threads for secure, weld-free connections. With 200+ tons stock inventory and third-party inspection certifications (SGS, BV, TÜV), we guarantee consistent quality for refineries, chemical plants, and marine applications. These flanges eliminate hot-work permits in explosion-proof zones, maintaining galvanized coating integrity while ensuring leak-free performance in high-pressure instrumentation systems.
Key Features & Benefits
Weld-Free Installation
Threaded association plan dispenses with welding necessities, protecting defensive coatings and lessening establishment time by 60% in dangerous environments.
Corrosion Security Retention
Maintains galvanized or zinc coatings all through establishment. Perfect for water treatment and HVAC frameworks where coating progression avoids untimely failure.
Rapid Upkeep Access
Quick dismantling without cutting empowers quick calibration of stream meters and weight gages in pharmaceutical and research facility settings.
Technical Specifications
| Material | Temp Range | Corrosion Resistance | Common Uses |
|---|---|---|---|
| A105 (CS) | -29°C to 425°C | Moderate | Steam, water lines |
| 316L Stainless | -196°C to 800°C | Excellent (acidic env.) | Chemical plants |
| Duplex 2205 | -50°C to 300°C | Extreme (seawater) | Offshore rigs |
Why Choose Us?
Stock Availability
200+ tons stock empowers 3-7 day conveyance for standard sizes. Surge orders satisfied inside 48 hours from Xi'an facility.
Technical Support
In-house metallurgists help with fabric choice based on temperature/pressure/media compatibility. Drawing survey completed inside 24 hours.
Flexible MOQ
Trial orders acknowledged from 100kg. Custom string profiles accessible for non-standard applications.
Quality Certifications
ISO 9001:2015, PED 2014/68/EU, NORSOK M-650 certified. Third-party review by SGS/BV/DNV orchestrated at no additional cost.
Manufacturing Process
Thread Machining
CNC machines cut exact NPT/BSP decreased strings per ASME B1.20.1 resistance course A. String profundity calculation accounts for pipe divider thickness to anticipate auxiliary weakness.
Heat Treatment
Normalizing at 900°C taken after by controlled cooling guarantees uniform grain structure. Carbon steel grades experience push alleviation at 620°C for 1 hour per inch of thickness.
Surface Finishing
Shot impacting evacuates scale some time recently applying anti-corrosion coatings. Stainless steel variations get passivation treatment per ASTM A967.
Applications
Oil & Gas Processing
Small-bore instrumented lines in seaward stages where welding confinements apply. Reasonable for Course 1 Division 1 explosion-proof areas.
Chemical Manufacturing
Connects destructive liquid lines requiring visit dismantling for cleaning. Stainless steel variations stand up to HCl and NaOH attack.
Water Treatment Plants
Preserves galvanized pipe coatings in metropolitan dissemination frameworks. Avoids zinc vaporization issues common with welded joints.
HVAC Systems
Commercial building establishments where fire codes disallow open fire operations. Empowers quick framework adjustments amid inhabitant improvements.
Packaging & Shipping
Protection Method
Plywood cases with desiccants for sea cargo. Strings secured by plastic caps and VCI paper against dampness. Containerization avoids taking care of damage.
Documentation
Commercial receipt, pressing list, beginning certificate, and fabric test reports included. ATA Carnet course of action for transitory sends out.
Export Markets
Our Threaded Flanges reach 60+ countries including USA, Germany, Canada, UAE, South Korea, and Brazil. Long-term partnerships with PETRONAS, LUKOIL, and PEMEX validate our compliance with international pipeline codes.
Quality Inspection
Dimensional Verification
CMM gear approves string pitch (±0.05mm) and spine distance across (±0.5% resilience). Go/No-Go gages affirm string engagement depth.
Pressure Testing
Hydrostatic testing at 1.5x evaluated weight for 30 minutes identifies micro-cracks. Pneumatic testing accessible for oxygen benefit applications.
Material Traceability
EN 10204 3.1 certificates connect warm numbers to crude fabric process test reports. PMI examination confirms amalgam composition at three focuses per flange.
FAQ
Q: What's the most extreme weight rating for 2" products?
A: Course 2500 (PN420) is accessible, given the mating pipe has adequate divider thickness to oblige string profundity without diminishing weight capacity.
Q: Can you supply BSPT strings for European projects?
A: Yes, we machine both NPT and BSPT per ISO 7-1. Indicate string standard amid citation to guarantee compatibility with existing systems.
Q: How do you avoid string bothering amid installation?
A: Stainless steel spines get nickel-based anti-seize coating. Establishment torque charts given based on fabric review and size.
Q: Are decreasing the items available?
A: Custom lessening plans interface diverse pipe breadths. Requires 15-day creation lead time with building endorsement.
Request a Quote
Contact us at linhui@lhtitanium.com with your Threaded Flanges specifications. Expect quotation within 4 hours, technical drawings in 24 hours, and factory-direct pricing with full material traceability certification.
