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现行 ГОСТ 34777-2021
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Холодильные системы и тепловые насосы. Клапаны. Требования, испытания и маркировка 制冷系统和热泵 阀门 测试和标记要求
实施日期: 2022-06-01
本标准旨在描述安全要求、测试方法、为制冷系统(包括热泵)使用具有类似外壳的阀门和其他装置打上标记。 阀门可与加长管一起考虑。 本标准讨论了材料选择中使用的标准
Настоящий стандарт предназначен для описания требований безопасности, методов испытаний, маркировки клапанов и других устройств с аналогичными корпусами для использования в холодильных системах, включая тепловые насосы. Клапаны могут рассматриваться в сборе с удлинительными трубами. В настоящем стандарте рассматриваются критерии, используемые при выборе материалов
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