ISO 11177:2019标准规定了内外釉阀门和压力管件的质量要求和测试方法,以确保其在未经处理和饮用水供应系统中的安全和可靠性。该标准适用于用于未经处理和饮用水供应的内外釉阀门和压力管件,包括球阀、闸阀、蝶阀、截止阀、旋塞阀、减压阀、止回阀、管接头、弯头、三通、法兰和其他管件。
该标准要求内外釉阀门和压力管件必须符合以下质量要求:
1. 釉层的附着力必须符合标准要求,以确保釉层不会剥落或脱落。
2. 釉层的厚度必须符合标准要求,以确保其在使用中的耐久性和抗腐蚀性。
3. 内外釉阀门和压力管件的尺寸和形状必须符合标准要求,以确保其与其他管件的连接和安装。
4. 内外釉阀门和压力管件的表面必须光滑,无明显的缺陷或损伤。
5. 内外釉阀门和压力管件必须经过水压试验,以确保其在使用中的安全和可靠性。
此外,该标准还规定了内外釉阀门和压力管件的测试方法,包括釉层附着力测试、釉层厚度测试、尺寸和形状测试、表面质量测试和水压试验。
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