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Starting from a series of sturdy, reliable valves, such as those to ISO5599/1, some special features have been added, such as the presence of a valve status diagnostic system and the creation of a double channel guaranteeing architecture redundancy.
For those requiring higher PLs, we have also developed a double-channel version (redundant) that requires the use of ISO 5599/1 valves with a monitored coil arranged so that ports 2 are in parallel and ports 4 are in series. If just one of the valves de-energizes, port 4 relieves, so, even if one of the two coils remains blocked, the other guarantees relief of the compressed-air circuit. In this case, too, the presence of spool position sensors can be used to monitor the status. The double valve is also available in 3 sizes for the ISO 5599/1 series. It is a category 4 component according to ISO EN 13849 and is suitable for use in safety circuits up to PL=e.
Both the single- and the double-channel valve come with:
- a Type-Approval n° P13104/11/mC/nb issued by Bureau Veritas in accordance with EN ISO 13849
- a certificate of compliance examination to the Machinery Directive 2006/42/EC CV **No. CV 002-10-2011 released by Bureau Veritas.
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