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Hydroclass range

A complete and coordinated range

With over 50,000 references, from DN 60 to DN 2000, PAM’s fittings offer facilitates the design of networks of all sizes and complexities, in all situations.
With standardized components, to completely compatible assemblies, the PAM catalogue constitutes the perfect tool for design offices. PAM provides a library of PAMCAD digital images, which integrate with software packages intended for designers.
Drawing on its experience and that of its customers, PAM also proposes pre-sized installation solutions, tested and easy to implement.

Hydroclass Cover
Hydroclass Cover

Certified and beyond the standards

All PAM products comply with the current European (EN) and international (ISO) standards.
Through the work of PAM research centre and their knowledge of corrosion phenomena in the soil, the PAM ductile iron pipelines have the latest coating technologies and often exceed the minimum industry standards.
It is also in this centre that the joints are developed and tested in the most extreme conditions.

Pam quality assurance

Quality management is a clear and operational concept at PAM, which designs, manufactures and markets its products in accordance with the requirements of the ISO 9001 quality assurance system.
The quality control process is regularly audited by external third party organisations that issue compliance certificates.

Robust components

PAM designs efficient and robust parts, compatible with conditions of transportation by truck, train, ship, capable of withstanding stacks of stocks and rough handling on sites.

High production rates

Laying, aligning, fitting! No welding on site, no repairing of the coating, no ultrasonic or X-ray examination... no other material can match the assembly rate of cast iron pipes with sockets. No immobilisation of specialised equipment, or waiting time for drying or cooling of assemblies. Nothing equals the management flexibility of shutdowns, restarting and progress of the site with PAM technology.

Any time, all terrains

Deserts or forests, swamps or mountains, sunshine or snow; the products, their protection and their assembly are
designed for all climates and all situations. An excavator for straight lines at high rate, simple hand winches at the bottom of inaccessible trenches! No waiting time, irrespective of the temperature and humidity level. The short pipe (6m - 8m) facilitates access with equipment of standard size and favorably limits the site’s right-of-way strip.

Watertightness, reliability, safety

Operators are responsible for regularly providing water adequately to consumers. PAM products help them attain their objectives:
• Cast iron is a robust material, which withstands high service pressures and external mechanical accidents. It is impervious to pollution in the soil.
• The joints with flexible sockets ensure watertightness.
• The coatings sustainably protect from external corrosion and preserve the water quality.

Perennial, upgradable, extensible system

International statistics show that cast iron pipelines have service lives of more than 100 years.
Networks must continually adapt to urban, industrial, agricultural, tourist developments. PAM pipelines are designed with a safety reserve that securely withstands increases in flow and pressure. They also withstand increases in surface loads (roads, buildings, etc.).
PAM offers a complete solution with pipes, joints and connections that ensure perfect compatibility of installations.

Tuyaux Hydroclass
HYDROCLASS pipes characteristics


mmm kg/mbarbarbar kg/mbarbarbar
7006C25186.225 20C30227 27cu 
8006C2522925 16/20cuC30278 25cu 
9006C25276.225 16/20cuC30348.7 25cu 
10006C25330.625 16/20cuC30554.1 25cu 
11008.19C25395.425 16/20cu     
12008.19C25461.625 16/20cuC30521.6 25cu 
14008.17C25632.425  C25632.4 16cu25cu
15008.16C25720.325  C25780.6  25cu
16008.16C25806.125  C25872.8  25cu
18008.15C25995.125  C251064.7  16cu
20008.13C25121025  C251306.7  16cu

(*): Other pipe classes available
• C25 DN 350 to 600 on request
• C20 DN 700 to 2000 on request
• All upper classes on request

PFA: Permissible operating pressure under EN 545 and ISO 2531
STD : standard joint
STD Vi : standard Vi joint
STD Ve : standard Ve joint
UNI STD Vi : UNIVERSAL std Vi joint
UNI STD Ve : UNIVERSAL std Ve joint
PK : PAMLOCK joint
cu : please contact us

See also

PAM ductile iron solutions cover the entire water transport cycle.
Saint-Gobain PAM is the world leader for the manufacturing of comprehensive solutions for the potable water and raw water supply. PAM Pipes, fittings, joints and accessories