[ Ссылка ] - Haake Technik GmbH, Germany, presents in this video demonstration on its valve interlock systems made in Germany how to change two flow/process media with protection against intermixture of water/gas/fluid (valve interlock in interaction with 2 valves). Haake Technik is certified to ISO 9001:2008 and has introduced the Full Quality Assurance System (FQA) according to Annex X of the Machinery Directive MRL 2006/42/EC for the product series HST and HSV (key transfer system / valve interlocks) certified by DGUV Test, Committee Electrical Engineering (Germany).

The UQS-certified (full quality assurance system, FQAS) key transfer system of Haake Technik ensures that only authorised personnel is able to manual valve operation. An operating error at a valve can have dramatic consequences - personal injuries, damages to the plant, or even contamination of the environment can be a result. Thus, the safe operation of valves must be guaranteed. By using the Haake afety valve interlocks you can be sure the correct valve open close sequence of operating procedures will always be adhered to. Haake products can be installed at every lever-operated or hand-wheel valve without damaging the mounting (e. g. gate valve in pipeline transport systems). Haake's valve interlocks improve workplace and machine safety of entire facilities and plants according to European Machinery Directive 2006/42/EC and the Machinery Safety Standards.

Description of valve locking funcionality: In this example the valve interlock system is a solution to change over from one media (orange) to another (yellow). To avoid that both media get mixed up, the right valve will be closed after inserting Key A-red into the right valve interlock by authorised personnel. Key B-blue will be freed and can be removed to be inserted into the left interlock. The left valve will be opened and key C-green will be freed (cf. video).

Typical applications for valve interlock systems (valve lock) include power plants, oil or petroleum refinery, oil and natural gas networks (energy supply industry), water supplies, oil platforms/depots, filling plants, paper mills, chemical production plants and pipeline transport for e. g. oil, natural gas and biofuels. But mechanical control and valve lockout systems are as well important to avoid operating errors at valves and to protect personnel and machinery (workplace safety) and for industrial process reliability, system failure and disaster prevention.

Haake Technik GmbH, Master Esch 72, 48691 Vreden, Germany, Phone: +49256439650, Web: [ Ссылка ]

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