Desalination Plant High Salinity S32760 Threaded Pipe Flanges

In Seawater Reverse Osmosis (SWRO) facilities, high chloride concentrations and continuous pump dynamics require robust piping components. Dafugui's Desalination Plant High Salinity S32760 Threaded Pipe Flanges are specified for high-pressure brine reject headers and chemical treatment lines. By removing thermal weld zones, these screw-on F55 flanges maintain uniform alloy integrity across reverse osmosis skids and manifold systems.

Material Performance in Brine & High-Salinity Media

• Optimized Chemistry for Brine Handling: UNS S32760 balances Chromium (24%–26%), Molybdenum (3%–4%), and Nitrogen (0.2%–0.3%), with deliberate additions of Copper (0.5%–1.0%) and Tungsten (0.5%–1.0%). This chemistry provides high resistance to chloride brine compared to standard 316L or 904L grades.

• Uniform Material Structure: Screw-connected flanges avoid thermal alteration caused by field welding, maintaining consistent corrosion resistance throughout the pipe joint area.

• Resistance to Velocity Erosion: High-pressure reverse osmosis feed pumps generate turbulent flow. The mechanical hardness of forged S32760 helps mitigate surface erosion and fluid wear.

Design Specifications

Desalination Quality Verification

• Hydrostatic Pressure Testing: Shell tested to 1.5 times nominal design rating to verify mechanical containment prior to dispatch.

• Dimensional Consistency Audit: Critical flange thickness, bolt hole pitch circles, and thread pitch checked via digital CMM equipment.

• Intergranular Corrosion Test: Evaluated according to ASTM A262 Practice E to verify resistance to intergranular chemical attack.

Zhejiang Dafugui S32760 Flanges Details

Zhejiang Dafugui S32760 Flanges PROCESS flow

Factory Focus: High-Capacity Pipe Fitting Production

• Dedicated Fitting & Flange Lines: Dafugui Desalination Plant High Salinity S32760 Threaded Pipe Flanges operates dedicated production workshops equipped with specialized cold-forming and multi-axis CNC machines, capable of handling high-volume supply requirements for municipal desalination projects.

• Quality Management Standards: Certified under ISO 9001 and CE frameworks to maintain product consistency across large-scale infrastructure shipments.

Commercial & Procurement Details

• MOQ: 1 Piece (Flexible terms for pilot plants and system repairs)

• Standard Delivery Lead Time: 15–30 Days; air-freight options available for urgent plant turnaround requirements

• Trade Terms: EXW, FOB, CIF (Incoterms 2020); T/T or L/C at sight

• Traceability Package: EN 10204 3.1 Material Test Certificates with heat numbers hard-stamped on flange rims

Frequently Asked Questions

• Why specify Desalination Plant High Salinity S32760 Threaded Pipe Flanges over standard S32750 for seawater reverse osmosis rejection lines?
UNS S32760 includes intentional additions of Copper and Tungsten, which enhance resistance to crevice corrosion in hot, high-salinity brine environments.

• Are threaded flanges suitable for routine maintenance disassemblies?
Yes. Threaded connections allow straightforward mechanical unthreading and reassembly during scheduled filter cleanings without cutting pipe spools.

• Can Dafugui supply complete flange, pipe fitting, and valve packages for desalination skids?
Yes. Dafugui manufactures matching elbows, tees, reducers, and valves in super duplex alloys to provide complete piping system solutions.