Stainless Steel Threaded Flanges

​Product Overview

Stainless Steel Threaded Flanges are designed for low/medium-pressure piping systems requiring frequent disassembly, such as instrumentation lines, utility networks, and HVAC applications. Made from ​304, 316L, and other corrosion-resistant grades, and compliant with ​ASME B16.5, ​EN 1092-1, and ​BS 4504 standards, these flanges combine threaded convenience with robust sealing for reliable performance.

​Product Specifications

​Material & Manufacturing

• Grades: 304, 304L, 316, 316L, 321
• Standards: ASTM A182, ASME B16.5 (Class 150-600), EN 1092-1
• Surface Finish: Polished (Ra≤0.8μm), Pickling & Passivation, Electroplated (Optional)

Design & Dimensions

• Thread Types: NPT (National Pipe Thread), BSPT (British Standard Pipe Taper)
• Face Types: Raised Face (RF), Flat Face (FF)
• Manufacturing: Forged or CNC-machined from stainless steel bar stock

​Size & Pressure

• Diameter Range: 1/2″ to 12″ (DN15-DN300)
• Pressure Rating: Class 150 to Class 600 (PN10-PN100)
• Temperature Range: -50°C to 260°C (Non-Critical Services)

​Key Advantages

✅ ​Quick Installation: Threaded design eliminates welding, ideal for maintenance-prone systems.
✅ ​Leak-Resistant: Precision-cut threads with PTFE tape compatibility ensure tight seals.
✅ ​Corrosion Resistance: Passes ASTM A262 intergranular corrosion testing.
✅ ​Versatility: Compatible with pipes, valves, and gauges in compact spaces.

​Applications

• ​Oil & Gas: Instrumentation lines, sampling ports
• ​Chemical Plants: Low-pressure acid/alkali transfer
• ​Water Treatment: Air vent connections, filter assemblies
• ​HVAC Systems: Chilled water lines, pump connections
• ​Construction: Fire suppression piping, gas distribution

​Certifications

• ISO 9001:2015, CE Marking, RoHS Compliance
• NACE MR0175 (Limited H2S Environments)
• Material Test Reports (MTC) with Heat Number Traceability

​Packaging & Logistics

• ​Export Packaging: Cardboard boxes with foam inserts, bulk orders in wooden crates.
• ​Shipping: EXW/FOB terms; air/sea freight for urgent small orders.
• ​Lead Time: 7-15 days (standard), 20-30 days (custom threading patterns).

​Why Choose TOKO TECH?

🔹 ​Cost-Efficient: No welding costs, 20% lighter than weld-neck alternatives.
🔹 ​Technical Support: Free thread compatibility charts and torque guidelines.
🔹 ​Quality Control: 100% thread gauge inspection and visual defect checks.
🔹 ​Stock Availability: 304/316L grades in common sizes ready to ship.