Quick opening bronze gate valve. The use of this gate valve, quick in opening and closing, is limited to the cases where it is necessary to stop the flow instantly: for example to tap a dose of liquid from a tank.
HOW TO INSTALL
Unpack the valve and check that the flow paths and valve threads are clean and free from debris. Check the body markings to ensure that the correct valve has been selected for installation. Rastelli gate valves are manufactured to exacting standards and, therefore, should not be subjected to misuse. The following should be avoided:
• Careless handling of the valve (Valves should not be lifted using the hand wheel, lever or the stem).
• Dirt and debris entering the valve through the end ports.
• Excessive force during assembly and hand wheel operation.
Confirm that the pipe threading length is correct to avoid excessive penetration of the pipe into the valve that would otherwise cause damage. Care should be taken to apply jointing compound to the pipe only and not in the valve threads. Surplus compound will then be forced outwards and will not enter the valve. Over use of compound can lead to valve failure on the body ends. Threads should be engaged correctly when tightening the valve onto the pipe. The wrench should always be fitted on the body end adjacent to the joint being made. Severe damage can occur to stems, valves and seats by the use of hand wheels larger than those originally supplied by the manufacturer, and by wheel keys.
No aesthetic care is required for this product.
A regular maintenance program is the most efficient method to ensure a long term efficiency of your gate valve. The program should include a risk assessment and a planned procedure of how the maintenance will be carried out.
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