To ensure the proper functioning of a diaphragm pump, it is important to lubricate the outlet valve. This can be achieved by applying a suitable lubricant to the valve assembly. Lubrication of the outlet valve is essential because it helps to reduce friction between moving parts, thus minimizing wear and tear. This, in turn, helps to extend the lifespan of the pump. It is recommended to lubricate the outlet valve on a regular basis, as per the manufacturer's instructions. This simple maintenance task can go a long way in ensuring the smooth operation of a diaphragm pump.
It is not necessary to lubricate the default mode valve at the factory, unless the air source quality is poor or if the user wishes to do so. However, the air that is supplied must be adequately lubricated. When the pump is in operation, a single drop of oil can be consumed with 9.4 liters of air, although the oil must not contain any detergent components. The oil can be introduced into the air pipe via the air source triplet and travel to the outlet valve.

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