High Quality Chemical Resistance FRP Flange Fibreglass Reinforced Plastic Flange for FRP/GRP Fiberglass Fittings

• Customization: Available
• Surface Treatment: Gel Coat, Smooth Surface
• Color: Green, Green or Customized
• Model NO.: BH-FRP-F
• Thickness: Customized
• Usage: Environmental Protection, Industral, Household
• Product Categories: Pipe, Gratings, Flanges, Volume, Reducer
• Molding Method: Hand Lay-up Method
• Material: FRP, Fiberglass Reinforced Plastic
• Fiber Type: GFRP
• Type: Epoxy FRP
• Fiberglass Type: E-Glass
• Certification: CE, ISO, RoHS
• Technique: Winding Filament Roving
• Product Name: FRP Flange
• Stanadard: ANSI B16.5
• Density: 1.7-1.9g/cm3
• Technics: Casting
• Connection: Screws
• Manufacturing Way: Press
• Application: Petroleum, Chemical, Drainage Industry
• Material Composition: FRP / GRP
• Transport Package: Steel / Wood Pallet with Packing Belt
• Specification: DN10-DN1000
• Trademark: BeiHai
• Origin: Jiujiang, China
• Production Capacity: 50000 Pieces/Year
• Package Size: 30.00cm * 15.00cm * 15.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

Fiberglass Reinforced Plastic (FRP) Flange

FRP (Fiberglass Reinforced Plastic) flanges are ring-shaped connectors used to join pipes, valves, pumps, or other equipment to create a complete piping system. They are made from a composite material consisting of glass fibers as the reinforcing material and synthetic resin as the matrix. They are manufactured using processes such as molding, hand lay-up, or filament winding.

Product Feature

Thanks to their unique composition, FRP flanges offer significant advantages over traditional metal flanges:

Excellent Corrosion Resistance: The most notable feature of FRP flanges is their ability to resist corrosion from various chemical media, including acids, alkalis, salts, and organic solvents. This makes them widely used in environments where corrosive fluids are transported, such as in the chemical, petroleum, metallurgy, power, pharmaceutical, and food industries.

Lightweight and High Strength: The density of FRP is typically only 1/4 to 1/5 that of steel, yet its strength can be comparable. This makes them easier to transport and install, and it reduces the overall load on the piping system.

Good Electrical Insulation: FRP is a non-conductive material, giving FRP flanges excellent electrical insulation properties. This is crucial in specific environments to prevent electrochemical corrosion.

High Design Flexibility: By adjusting the resin formula and the arrangement of glass fibers, FRP flanges can be custom-made to meet specific requirements for temperature, pressure, and corrosion resistance.

Low Maintenance Cost: FRP flanges do not rust or scale, leading to a long service life and significantly reducing maintenance and replacement costs.

FRP Flange Product Type

Based on their manufacturing process and structural form, FRP flanges can be categorized into several types:

One-Piece (Integral) Flange: This type is formed as a single unit with the pipe body, offering a tight structure suitable for low to medium-pressure applications.

Loose Flange (Lap Joint Flange): Consists of a loose, freely rotating flange ring and a fixed stub end on the pipe. This design facilitates installation, especially in multi-point connections.

Blind Flange (Blank Flange/End Cap): Used to seal off the end of a pipe, typically for pipeline system inspection or to reserve an interface.

Socket Flange: The pipe is inserted into the flange's inner cavity and connected securely through adhesive bonding or winding processes, ensuring good sealing performance.

Product Specification

DN	P=0.6MPa		P=1.0MPa		P=1.6MPa
	S	L	S	L	S	L
10	12	100	15	100	15	100
15	12	100	15	100	15	100
20	12	100	15	100	18	100
25	12	100	18	100	20	100
32	15	100	18	100	22	100
40	15	100	20	100	25	100
50	15	100	22	100	25	150
65	18	100	25	150	30	160
80	18	150	28	160	30	200
100	20	150	28	180	35	250
125	22	200	30	230	35	300
150	25	200	32	280	42	370
200	28	220	35	360	52	500
250	30	280	45	420	56	620
300	40	300	52	500
350	45	400	60	570
400	50	420
450	50	480
500	50	540
600	50	640

For larger apertures or custom specifications, please contact me for customization.

Application

Due to their exceptional corrosion resistance and lightweight strength, FRP flanges are widely used in:

Chemical Industry: For pipelines transporting corrosive chemicals like acids, alkalis, and salts.

Environmental Engineering: In wastewater treatment and flue gas desulfurization equipment.

Power Industry: For cooling water and desulfurization/denitrification systems in power plants.

Marine Engineering: In seawater desalination and ship piping systems.

Food and Pharmaceutical Industries: For production lines requiring high material purity.

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