Page 293 - 08-气源处理元件

VBA Series
Specific Product Precautions 1

Be sure to read this before handling the products.
Refer to the back cover for safety instructions.

Design Design
Warning Caution

1. Warning concerning abnormal outlet pressure 2. Maintenance space
¡If there is a likelihood of causing an outlet pressure drop due to ¡Allow the sufficient space for maintenance and inspection.
unforeseen circumstances such as equipment malfunction, 3. Counting the operating cycle
thus leading to a major problem, take safety measures on the ¡When counting the operating cycles using an auto switch, use
system side.
¡Because the outlet pressure could exceed its set range if there an instrument with a counting speed of 1 kHz or more.
is a large fluctuation in the inlet pressure, leading to
unexpected accidents, take safety measures against abnormal Selection
pressures.
¡Use within the outlet pressure range. Caution
2. Residual pressure measures 1. Check the specifications.
¡Connect a 3-port valve to the OUT side of the booster regulator ¡Consider the operating conditions and operate this product
if the residual pressure must be released quickly from the within the specification range that is described in this catalog.
outlet pressure side for maintenance, etc. (Refer to the 2. Selection
diagram below.) The residual outlet pressure side cannot be ¡Based on the conditions (such as pressure, flow rate, and cycle
released even if the 3-port valve is connected to the IN side time) required for the outlet side of the booster regulator, check
because the check valve in the booster regulator will activate. the selection procedures described in this catalog or model
selection software for size selection of the booster regulator.
Model selection can be done using the selection software on
the SMC website. Go to Documents/Downloads R Model
Selection Software R Booster Regulators
¡Since the booster regulator is a compressor powered by the air,
it consumes the air. The air consumption is approx. 0.72 times
¡Discharge the inlet charge pressure after the operation. It stops larger than the outlet side volume. Therefore, the booster
the operation of the booster regulator and prevents unnecessary regulator requires a supply capacity of the inlet side volume that
air consumption. is approx. 1.72 times larger than the outlet side volume.
¡When operating the booster regulator continuously for longer
periods of time, particularly confirm its service life.
¡The service life of the booster regulator depends on not the
operation hours but the operating cycles (piston sliding
distance). The operating cycles (piston sliding distance)
depend on the outlet air flow rate of the booster regulator.
Thus, when more outlet air flow rate of the booster regulator is
used, its service life becomes shorter. Selecting a booster
Caution regulator of a larger size will result in reduced operation
frequency, thus increasing the service life of the product.
1. System configuration ¡When using 2 booster regulators for 2-stage pressure boost,
¡Ensure sufficient air charge capability of the min. operating be sure to provide a stable supply of pressure to the
pressure (0.2 MPa) or more. The switching valve may not downstream booster regulator, and install a pressure vessel
operate when the internal operating pressure is equal to the such as an air tank, etc., between the booster regulators.
min. operating pressure or less. (Refer to “Circuit Example” on page 7.)
¡The booster regulator has a sliding part inside, and it generates
dust. Also, install an air purification device such as an air filter
or a mist separator on the outlet side as necessary.
¡Connect a lubricator to the outlet side, because the accumulated
oil in the booster regulator may result in a malfunction.
¡Pay attention to the max. operating pressure range and operate
within these specifications of peripheral equipment.

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