一般来说，消费者上、下、左、右转动手柄，若感觉轻便、无阻滞感则说明阀芯较好。要检测书：质量更有保证水主体一般都是黄铜。用黄铜制作的产品电镀质量*能保证，黄铜纯度越高电镀质量越好，表面的电镀层越不易被腐蚀。有些厂家为了降低成本，选用锌合金代替黄铜，虽然*允许使用锌合金材料代替黄铜，但锌合金电镀质量差，耐腐性不强。消费者在选购时可采用估重的方法进行鉴别，黄铜较重较硬，锌合金较轻较软。但阔达装饰主材部有关*认为，不应单以重量来判定水质量好坏，因为有些厂家通过加大水壁厚或加入其它金属材料，也可以使水掂起来较重。
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为关键仪表箱再加一层保温棉，在保温箱门口和进出管线口加胶密封，可达到仪表系统更佳保温防冻效果。电加热带措施电伴热保温技术是一种*的由电能直接转化为热能的供暖技术。加装保温电缆，将伴热带，缠绕在仪表上，或粘在仪表柜内部(但要注意所用伴热带的长度，要经济适度)。适用于管道、阀门、泵体的伴热、防冻和保温或者维持仪表管线工艺温度的单相恒功率电热带，单位长度发热量恒定，输出功率不受环境温度变化而改变，使用长度和功率成正比，在安装时可以任意剪接，但必须保留有一个发热节(即至少2.5m)，外层编织层具有传热、散热作用，同时能作为防静电的安全接地。
