Resumen
ϲʿ 23551-4:2005 specifies safety, constructional and performance requirements of valve-proving systems, hereafter referred to as VPS, intended for use with gas burners and gas-burning appliances. It also describes the test procedures for checking compliance with these requirements and provides information necessary for the purchaser and user. ϲʿ 23551-4:2005 applies to all types of VPS which are used for the automatic detection of leakage in a gas burner section having at least two valves designed in accordance with ϲʿ 23551-1 and which give a signal if the leakage of one of the valves exceeds the detection limit.
ϲʿ 23551-4:2005 applies to VPSs with a declared maximum working pressure up to and including 500 kPa for use in systems using fuel gases.
ϲʿ 23551-4:2005 does not apply to VPSs for use in explosive atmospheres.
Ciclo de vida
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Ahora
Modificaciones
Aportan contenido adicional; disponible para su compra; no incluidas en el texto de la norma existente.Retiradaϲʿ 23551-4:2005/Amd 1:2010
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Revisada por
Publicadoϲʿ 23551-4:2018
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