Ulvac PBL Series, Инструкция по эксплуатации

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16
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Install a flowmeter (e.g., flow sight) on the cooling water supply source.
To check the flow, install a flowmeter that can be used to visually recognize that cooling water is
flowing (e.g., flow sight) on the cooling water supply source of the equipment or other device.
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When using multiple pumps, connect their cooling water piping in parallel.
When using multiple pumps, connect their cooling water piping in parallel. If such piping is
connected in series, cooling capacity will be insufficient, causing a failure.
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Use a filter or other tool to filter water that has many impurities.
When using that has with many impurities, including water stains or iron, use a filter or other tool
to filter it during the stage prior to use.
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Ensure a sufficient flow rate.
If you continue to operate the pump with a cooling water flow rate below the specified value, a
failure may occur.
Ensure the specified flow rate.
If the supply source and drainage port are far away from each other or if the piping has a
difference in height (the drainage port is raised above the pump), it may not be possible to
ensure a sufficient flow rate. In this case, ensure the flow rate by changing the piping layout,
replacing the piping with larger piping, or increasing the supply pressure within the specification
range.
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Use piping that has appropriate water pressure resistance and heat resistance.
In the cooling water system, use joints and piping that have a water pressure resistance of at
least 0.9 MPa and heat resistance of at least 70°C.
The pump uses Cu piping as cooling water piping. Note in advance that we will change for
repair of problems caused by piping blockage or decreased cooling efficiency due to separation
or accumulation of impurities (water stains, microorganisms, metal powder, or metal ions).
■ Specifications of the junction area
Table 3 Specifications of the junction area
Water ports
(size × number of
systems)
PBL-02 PBL-04 PBL-06
Rc1/8” Rc1/4” Rc3/8”×2
PBL-10 PBL-14 PBL-20
Rc1/2”×2 Rc1/2”×3
Rc1/2”×3
Inside port Rc3/8”