NOTE: For Australia and New Zealand, Pipeline strainers should be installed between the upstream shutoff valve and the inlet of the backflow preventer.

注意：适用于澳大利亚和新西兰：管路过滤器应该安装在上游关闭阀和防回流阀进口之间。

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Take apart all valves along the pipeline for washing before installation, check whether valve handles are flexible. The valves can be installed after passing the pressure test.

管路上的各种阀门在安装前要拆开清洗，检查阀柄是否灵活，并经试压不漏后方可安装。

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Safety protective valve for preventing hydraulic pipeline rupture.

设有防止液压管路破裂的安全保护阀。

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