Pipes and POWER-LOCK® Bends in PVC-A

The sustainable and innovative solution for water transport, simple and quick to install, reliable and safe without the need of maintenance.

PVC-A Characteristics

PVC-A refers to a polymer alloy that originated in 1995 through collaboration between the English organization North West Water and the research institute Pipeline Development Ltd.

This innovative polymer alloy (PVC-A), combines the strength of PVC-U (unplasticized polyvinyl chloride) with the flexibility of polyethylene (PE). By carefully selecting and blending these materials, we created a new generation of polymer alloy that meets the needs of water industry.

The combination of polyethylene’s ductility and robustness with PVC-U’s high strength results in a new product with excellent performance characteristics, offering both toughness and durability. 

Their high-resistance to breakage, even under point loads, combined with a high yield strength, ensures superior performance compared to other plastic materials available in the market

The advantages of the VDA® system 

  • Resistant to crack propagation: The main cause of breakage during installation and laying operations.
  • Maximized flow rate: Reduced pressure drop, and optimized plant management costs thanks to the larger internal diameter compared to other pipes with the same PN.
  • Simple and fast installation: Greater maneuverability and safety on-site due to the reduced weight compared to other pipes of the same diameter and PN. Reduced installation times and costs thanks to the quick and reliable jointing technology.
  • Guaranteed hydraulic seal: FORSHEDA POWER-LOCK® gasket pre-inserted during the tube flaring phase when hot.
  • Corrosion-resistant: No risk of leakage along the network compared to traditional metal pipes.


The VDA® system: pipes and curves in PVC-A for water transport 

Our system of PVC-A Pipes and Curves has been designed to provide optimal performance for pressurized water transport, creating a highly durable product suitable for all installation and laying operations.

foto gruppo prodotti tubi in pvca per incollaggio, a bicchiere e con giunzione forsheda power lock

ISO-UNI pipes in PVC-A

VDA® pressure pipe

Our PVC-A Pipes and Curves are designed for pressurized water transport, with joint systems for gluing, threading, and snap-in connections using the FORSHEDA POWER-LOCK® junction. 

Available within the range:

  • d50 - d500
  • PN8 - PN10 - PN12.5 - PN16 - PN20
foto gruppo prodotti curve in pvca con giunzione forsheda power lock


VDA® pression bends
Series of bends intended for conveying pressurized water with FORSHEDA POWER-LOCK® joining system

Available within the range:

  • ø est. 63-400 mm
  • 11° - 22° - 30° - 45° 90°
  • PN6 - PN10 - PN16

Regulatory references

Our PVC-A range is produced at Lareter’s headquarters in Fiesso Umbertiano (Rovigo, Italy). Lareter is a company certified with UNI EN ISO 9001 (Quality certification issued by IIP – Italian Institute of Plastics), UNI EN ISO 14001 (Environmental certification issued by BSI – British Standards Institution), and ISO 45001 (Occupational health and safety management system certification issued by BSI – British Standards Institution).

  • BS PAS 27: 1999 unplasticized polyvinyl chloride alloy pipes and bends
  • PVC-A under pressure 
  • Certified potability according to D.M. n° 174 / 2004
  • UNI EN 1622 - Smell and taste threshold

Approvals and quality brands

logo certificazione KIWA-ATA

KIWA (Keurings Institut Voor Waterleiding Artikelen Holland) KQ KIWA QUALITY KIP-105133 Standard that fully implements  BS PAS 27:1999

logo certificazione di sostenibilità EPD Hub

ACS The VDA® system is certified suitable for coming into contact with water intended for human consumption according to the Attestation de conformité sanitaire (ACS).

logo della certificazione di sostenibilità ambientale Ecovadis - Silver

EPD HUB - 1 Feb 2022 EN 16904 Product Category Rules (PCR) per sistemi di tubazioni plastiche interne. HUB-1151, Environmental product declaration In accordo a EN 15804+A2 & ISO 14025 / ISO 21930


Technical catalogue VDA system EN
1.1 MB, PDF
LARETER Technical Catalogues
Technical catalogue VDA system EN
Product Technical Sheet VDA pressure pipe
112.8 KB, PDF

Contact our industry expert

Luigi Viggiano
EMEA Product Manager
+39 342 034 7702
Product manager tubi e raccorid in PVC-U, PVC-C, PVC-A