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| JB/T 7245-2017 Steel and iron shut off valve and lift check valve in refrigeration (English Version) |
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Detail of JB/T 7245-2017
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Introduction of JB/T 7245-2017
本标准规定了制冷系统用钢制、铁制制冷剂截止阀和升降式止回阀的术语可定义、型式和基本参数、要求、试验方法、检验规则及标志、包装、运输和贮存。
本标准适用于公称压力PN≤65, 公称通径DN6～DN450，温度-60℃～+150℃、以 R22、R717、R744、R404A、R134a、R32、R407C、R410A等为常用制冷剂的制冷通用管路钢制和铁制截止阀和升降式止回阀。
制冷系统用钢制和铁制调节阀、截止止回阀可参照本标准执行。
Contents of JB/T 7245-2017