With the Alphaliner 500 and the Alphaliner 1200 we offer two types of liners, each of which is available in all diameters and wall thicknesses with polyester resin or Vinyl Ester resin.

The difference between the Alphaliner 500 and Alphaliner 1200 is the orientation of the fibres and thus in the mechanical characteristics.

• Alphaliner 500: GRP liner with an excellent price-performance ratio especially with smaller diameters
  
  
• Alphaliner 1200: GRP liner with maximum mechanical values that offers the highest possible stability,especially for large diameters.

Mechanical properties	Alphaliner500	Alphaliner1200
Short-term E modulus, 5% quantile Long-term E modulus, 5% quantile	8400 MPa 5250 MPa	11400 MPa 8571 MPa
σ Short-term flexural tension, 5% quantile σ Long-term flexural tension, 5% quantile	180 MPa 112 MPa	210 MPa 157 MPa
Reduction ratios for 50 years of use A1	1,60	1,33
Section length	up to 300 m	up to 300 m
Wall thickness	3-28 mm	3-28 mm

  Overview