GRP Mortar Pipe — Sand-filled (FRPM)
Quartz-sand core between wound layers for economical large-diameter ring stiffness.
Sand-filled (polymer mortar / FRPM) wall construction uses a quartz-sand core between filament-wound layers to raise ring stiffness economically at large diameters. This is the workhorse for large-diameter buried conveyance where external soil loads dominate the design.
Key Specifications
| Item | Industry-typical range |
|---|---|
| DN range | DN500 – DN4000 mm |
| Wall structure | corrosion barrier + wound layers + sand core + outer layer |
| Pressure class | PN6 – PN25 |
| Stiffness class | SN2500 – SN10000 N/m² |
| Resin | UP |
Industry-typical parameters; subject to our confirmed products.
Industry-typical reference values, subject to our confirmed products. Reference: GB/T 21238 glass-fiber reinforced plastics mortar pipes.
Frequently Asked Questions
What is FRPM pipe?
Fiberglass reinforced polymer mortar pipe — a sand core between filament-wound layers that boosts ring stiffness at lower cost for large diameters.
Where is mortar pipe used?
Large-diameter buried water mains, power-plant cooling lines and conveyance where soil loads dominate.
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