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Radius Star Piping supplies galvanized iron GI flanges to pipeline contractors, engineering firms and project owners across the UAE, Oman and Saudi Arabia from our warehouse in the Al Qusais Industrial Area, Dubai. We stock a comprehensive range of GI flange types and sizes for fast dispatch to project sites across the GCC.
Need GI Flanges for Your Project? Contact Our Supply Team.
Galvanized Iron (GI) flanges are carbon steel flanges coated with a protective zinc layer through the galvanizing process. The zinc coating provides superior corrosion resistance compared to uncoated steel, making GI flanges the standard choice for water supply systems, irrigation pipework, fire protection networks and general industrial piping applications where long-term durability and resistance to moisture and corrosion are required.
GI flanges connect pipes, valves, pumps and other pipework components at joint points, enabling easy access for maintenance, inspection and future modifications without cutting the pipeline.
We supply the following GI flange types across all standard pressure ratings and pipe sizes:
Slide over the pipe end and are fillet-welded in position. The most commonly used flange type for general pipework applications.
Used to close and seal the open end of a pipeline, nozzle or vessel. Standard for pressure testing and for permanently blanking redundant pipeline ends.
Connect to threaded pipe ends without welding. Used in smaller diameter pipework and in situations where welding is not practical on site.
The pipe end is inserted into the flange socket and fillet-welded from the outside. Used in small-bore high-pressure pipework applications.
Not sure which flange type suits your project? Talk to Our Technical Team.
All GI flanges we supply are inspected before dispatch. We provide material test certificates on request for projects with documentation requirements.
We stock slip-on, blind, screwed, threaded and socket-weld flanges across multiple pressure ratings and sizes, available for fast dispatch from Dubai.
We have supplied GI flanges to projects in petrochemical plants, oil and gas installations, power plants, water treatment facilities and fire protection networks across the UAE, Oman and Saudi Arabia.
We dispatch orders from our Dubai warehouse, typically delivering by road freight to Muscat, Riyadh, Jeddah and Dammam within two to four working days.
Request a Quote for GI Flanges.
Call us at +971 4 269 3863 or email info@radiusstarpiping.com with your flange type, size, pressure rating and required quantity.
GI stands for galvanized iron. GI flanges are carbon steel flanges coated with zinc through hot-dip or electro-galvanizing to provide corrosion resistance.
GI flanges are carbon steel with a zinc coating, suitable for general water and utility pipework at a lower cost. Stainless steel flanges offer higher corrosion resistance and are used in chemical, food-grade and marine environments.
We supply GI flanges in standard ANSI pressure ratings, including Class 150, Class 300 and Class 600, as well as PN10 and PN16 to DIN standards. Contact our team to confirm availability for your required rating.
Yes. We supply GI flanges from our Dubai stock to project sites across the UAE, Oman, Saudi Arabia and Bahrain. Contact us at +971 4 269 3863 for pricing and delivery timelines.
We stock GI flanges in standard sizes from half an inch to 24 inches. Contact our team for availability on larger or nonstandard sizes.
Yes. GI flanges are widely used on potable water supply and distribution pipelines, firefighting networks and irrigation systems due to their corrosion resistance and durability.
GI flanges are used in utility and non-process pipework on oil and gas sites. For process piping carrying hydrocarbons, carbon steel or stainless steel flanges are typically specified. Confirm the correct flange material with your project engineer.
Yes. Material test certificates are available on request for all GI flanges we supply, formatted for inclusion in project quality documentation.
A slip-on flange slides over the outside of the pipe and is welded in place. A socket weld flange has a recessed socket bore and the pipe is inserted into it before welding. Socket weld flanges are used in smaller-diameter, higher-pressure applications.
For stocked sizes and types, we dispatch within 24 to 48 hours from our Dubai warehouse. Delivery to UAE sites is typically the same day or next day. Delivery to Muscat, Riyadh and Jeddah is two to four working days by road freight.
