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Rotary vane vacuum pump is one of the basic equipment used to extract gas from sealed
vessels.
It can be used as a single-acting pump, but also as a front pump for booster pumps, diffusion pumps, molecular pumps, etc.
, maintenance pumps, and pre-pump pumps for titanium pumps
.
It can be used in electric vacuum device manufacturing, thermos bottle manufacturing, vacuum welding, printing, blister, refrigeration equipment repair and instrumentation
.
Because it has the advantages of small size, light weight and low sound, it is more suitable for use
in the laboratory.
The pump allows long-term continuous operation under the condition that the ambient temperature is within 540 range and the inlet pressure is less than 1.
3X103 Pa, and when the relative humidity of the pumped gas is greater than 90%, the valve should be opened
.
The continuous smooth operation of the pump air inlet shall not exceed one minute
.
Pumps are not suitable for pumping gases that are corrosive to metals, chemical reactions to pump oil, contain particulate dust, and gases with excessive oxygen, explosive and toxic.
Precautions for rotary vane vacuum pump: to ensure the cleanliness of the pump and prevent debris from entering the
pump.
Maintain oil levels
.
When the water or other volatile substances enter the pump and affect the vacuum, the air ballast valve can be opened to purify it, observe the vacuum recovery situation, which is ineffective for several hours, and the pump oil should be replaced, and it can be replaced
again.
Oil change method: the pump runs for about half an hour, so that the oil becomes thinner, stop the pump from the oil hole to release oil, and then open the air inlet for 10 to 20 seconds, during which a small amount of cleaning pump oil can be slowly added from the suction port to replace the pump cavity memory oil
.
If the oil comes out dirty, the latter can be repeated
.
Do not mix diesel, gasoline and other oils with large saturated vapor pressures to avoid reducing the vacuum
.
When dismantling and washing the parts in the pump, it is generally possible
to wipe them with gauze.
When its metal chips, sand mud or other harmful substances are cleaned, they can be scrubbed with gasoline, etc.
, and can be assembled after drying, and should not be soaked
with gasoline.
If the pump needs to be disassembled for cleaning or maintenance, pay attention to the disassembly steps to avoid damaging the parts
.