This Appraisal is for a range of PAM HYDROCLASS® and INTEGRAL® ISO sized ductile iron pipe and fittings in sizes DN 800 to DN 2000. This Appraisal is to replace PA 1409 which had previously expired.
The PAM range of HYDROCLASS ductile iron pipes and fittings is suitable for the transport of drinking water. The pipes are cement mortar lined and may be coated externally with metallic zinc or with ZINALIUM® metallic zinc-aluminium alloy and a finishing layer of blue or black anticorrosive paint.
The PAM range of INTEGRAL ductile iron pipes and fittings is suitable for the transport of sewerage or aggressive waters with pH values of 4 to 12 and may be coated externally with metallic zinc or with ZINALIUM® metallic zinc-aluminium alloy and a finishing layer of red anticorrosive paint.
DN 800 to DN 2000 pipes are available in pressure classes PN25 and PN30 whilst DN 800 to DN 1200 pipes are also available in pressure class PN40. Pipes with alternative pressure classes may also be provided.
A compatible range of ductile iron fittings is available in sizes DN 800 to DN 2000 with various combinations of socket and flange ends. Flanges comply with EN1092-2 PN10, PN16, PN25 or PN40. Flanges can be drilled to match AS4087 PN16 and PN35 to facilitate connections where necessary.