FRP Backing Ring DN700 for GRP Pipes
Article BR-700-762-03/10 · Drilling EN1092 PN10 · Working pressure up to 3 Bar
BR-700-762-03/10
- Material: FRP (Fiber Reinforced Plastic)
- Pipe system: GRP
- Nominal size: DN700
- Max pressure: 3 Bar
- Drilling: EN1092 PN10
- Manufacturing: Resin Transfer Moulding (RTM)
Technical Specifications
| Property | Value |
|---|---|
| Article number | BR-700-762-03/10 |
| Pipe system | GRP |
| Nominal diameter (DN) | 700 mm |
| Max working pressure | 3 Bar |
| Drilling standard | EN1092 PN10 |
| Outer diameter (D) | 910 mm |
| Inner diameter (d1) | 756 mm |
| Inner stub OD (d10) | 762 mm |
| Radius (r1) | 7 mm |
| Bolt circle (k) | 840 mm |
| Bolt holes | 24 |
| Bolt hole diameter (d2) | 30 mm |
| Thickness (b1) | 44 mm |
| Material | FRP (Fiber Reinforced Plastic) |
| Manufacturing process | Resin Transfer Moulding (RTM) |
| Quality | ISO 9001 certified |
About this Backing Ring
This BR-700-762-03/10 is an FRP (Fiber Reinforced Plastic) Backing Ring designed for use behind GRP stub flanges in industrial piping systems. With a nominal size of DN700 and working pressure rated up to 3 Bar, it carries the bolt load on flanged connections to other equipment - pumps, valves, vessels, or matching steel flanges - without distorting the plastic pipe.
The drilling pattern matches EN1092 PN10, ensuring drop-in compatibility with industry-standard counter-flanges. Manufactured by Resin Transfer Moulding (RTM) - a closed-mold resin infusion process - this large-diameter Backing Ring is built to engineered tolerances with precise reinforcement positioning and constant material quality.
Like all FRP Backing Rings from BackingRing.com, this part is fully corrosion-free, lightweight relative to a metal equivalent, and intended for service in chemical processing, water and wastewater treatment, mining, marine and other demanding environments.
Common applications for DN700 GRP Backing Rings
- Connecting GRP pipe spools to flanged pumps, valves and instrumentation
- Tie-ins between GRP sections and steel/ductile-iron piping in mixed-material plants
- Replacement of corroded metal backing rings in saltwater or chemical service
- OEM equipment skid assemblies requiring a lightweight, non-rusting flange backing
Need a different size or pressure rating?
We manufacture FRP Backing Rings up to DN4000 in custom drilling patterns and pressure classes. Talk to our engineering team.