Hydrants ought to be located in a distance of not fewer than 2 m from the deal with from the properties. This distance may well suitably be elevated approximately optimum fifteen m where hydrants are set up to shield hazardous storages or procedures so which the haydrants continue to be approachable and workable even in the situation of a serious hearth.
請注意：務必確保已選取的區域來自正確的螢幕截圖（螢幕內），否則裝置將永遠顯示黑色。若您從外接螢幕選擇區域，且螢幕已從桌上型電腦或筆記型電腦拔除，請在套用具有同步辨色的燈效設定檔前，重新選擇自訂區域。
Delicate metal tubes, tubulars and other wrought metal fittings: Component 1 Gentle steel tubes (fourth revision)
Forged iron fittings for tension pipes for water, gas and sewage Code of practice for hearth basic safety of properties (common): Common ideas of fireplace grading and classification (1st revision)
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Wherever, nevertheless, it truly is inescapable to put mains under the above affliction, they ought to ome88 be laid in masonry trenches with detachable addresses and sluice valves really should be furnished within the details of entry and exit.
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The scale of major ought to count on the output and strain specifications and ome88 the full quantity of hydrants to be mounted on an individual system. On the other hand, the minimal sizing of mains must be not ome88 lower than. a hundred and fifty mm.
The valve from the hydrant really should not be operated when the pit is filled with h2o ome88 Unless of course the stand pipe or hose are to start with equipped.
To prevent threat of contaminating the drinking water offer, every single endeavour must be designed to avoid collecting h2o at the same time in a pump from a drinking h2o main.
Code of apply for installation and maintenance of inner hydrants and hose-reel on premises (initially revision)
The hearth hydrant mains must generally be laid in rings or crosslinked rings, that may be, many of the mains ought to be interconnected.