Epoxy Resin Composite

Epoxy resin (bisphenol-A type) reinforced with silica flour and milled glass fibres with an Aromatic Amine Hardener

A Thermoset resin. GRE, similar to popular materials used for GRE pipe, but the glass is in powder form.
Resin is cast by a pressure gellation process.
Very light compared to metals

Typical Properties

Tensile 90 N/mm2
Elongation 1%
Density 1.85 g/cm3
P/T rating depends on valve and fluid. Max temperature 110 degC, pressures between 10 to 20 bar

Corrosion Properties

Good in nearly all waters and alkalis, reasonable for mild acids
Special testing required for chemical applications
Ideal match to most cases where GRE / GRP pipe is used

Comments & Cautions

Brittle- installation and tightening procedures of flanges is important
P/T rating depends on valve and medium
Firesafe valves can be provided
Low weight a specific advantage