Simple, reliable malleable cast iron fitting. For plumbing, heating and climatic systems. Maximum permissible working pressure 25 bar. A union is used when you are trying to join two pipes together that are fixed, thus unable to be turned. A union is very similar to a coupling, except that it can be unscrewed into two separate pieces and then screwed back together when both separate ends are attached to the two pipe ends that need to be joined.
We also offer identical sizes of black steel with a 25% lower price.
STANDARD AND IDENTIFICATION
Standard for production and use EN 10242 – Identification: In accordance with the material selected for the production and the type of thread the EO fittings are identified as class ”A”, that is:
• They are generally made of white heart malleable cast iron of high quality EN-GJMW 400 - 05.
• The threads are cut according to ISO 7/1, i.e. parallel internal thread (Rp) and tapered external thread (R).
QUALITY ASSURANCE
The new UNE-EN 10242 standard requires that manufacturers establish and maintain a documented System of Quality Assurance in accordance with ISO 9001. This system has to be certified by an independent Organisation for Certification which observes the strict regulations of the EN ISO/IEC 17021, in order to guarantee that the fittings are in accordance with the requirements of the product standard EN 10242. ATUSA fulfils these requirements and has established a System of Quality Assurance according to ISO 9001 as shown by the Certificate of Registration of the Firm AENOR/ER 076/2/95 and the certificate of the prestigious IQNet (The International Network for Quality System Assessment and Certification) in accordance to the criteria of the EN ISO/IEC.
GALVANIZATION
The EO fittings can be delivered as requested by the purcharser with black or galvanized finish. As prescribed by the standard EN 10242, the mass of zinc coating shall be not less than 500 gr/m2, which corresponds to a medium layer thickness of 70 µm. Both types of finish are covered with an anti rust varnish. The surfaces of the EO fittings are free from polycyclic aromatic hydrocarbons.
LEAK TEST
Applying the standard EN 10242 each individual EO fitting is subjected to a pressure test with a min. hydrostatic pressure of 20 bar, which is equivalent to a pneumatic pressure of min. 5 bar.
TERMS OF DELIVERY
Technical aspects, design and other characteristics of the fittings are subject to possible modifications due to technical improvements or changes of standardization.
