Tolerable start/stop frequency for Ring Blow
[
Sw/Hr
]
Model
Value for frequency of 50/60Hz
VFC088 – VFC308
30/20
VFC408 – VFC608
20/15
VFC708 – VFC908
15/10
*1 switch
:
one cycle of ON and OFF
13. The characteristics differ a little when the machine is used at suction side and when used at
discharge side, as shown in the characteristics curve. As the air specific weight becomes larger,
when the discharge side is throttled, the static pressure becomes also larger.
14. Remove any solid object, dust, thread chip, water drop or the like before entering into the Ring
Blow. Even if make no dust be sucked directly, take measures not to suck any dust staying around
by mistake. Use of the dust staying around by mistake. Use of the dust collection sack in a
vacuum cleaner or the like is recommended.
Also, it is recommended to use a filter having considerably large space. Remove sometimes the
dust collected in the filter. It may also be possible to make the dust blow off by reversing the Ring
Blow, if it is possible.
15. If dusts adhered inside and outside of the blower (especially in the cooling air path for cooling fan
cover), remove them. If adhered dusts increase, it causes such troubles as a temperature rise, a
sink of wind flow rate and an increase vibration.
16. As the motor load (current) changes depending upon the air flow used by the Ring Blow, refer to
the characteristics curve for setting the wiring capacity and protection relay.
17. The bearing, oil seal and silencer are consumables and need to be changed when their lives are
arrived. Depending on the environment, in which the machine was used, the Impeller, casing,
casing cover, and wire net are also included in consumables.
Intervals for inspection and exchange of consumables
Part name
Inspection/exchange interval
*Standard for use in a standard environment.
They may be shorter depending on the environment.
Bearing 2
years
Oil seal
At the same time as bearings
Silencer 2
years
Table of bearing and oil seal
Bearing Oil
seal
Model
Grease
Load side
No-load side
Model Material
Urea
VFC088A 6201ZZ 6201ZZ
- -
Urea
VFC108A 6202ZZ 6202ZZ
20-30-5 Nitrile
rubber
Urea
VFC208A 6202ZZ 6202ZZ
20-30-7 Nitrile
rubber
Urea
VFC308A 6202ZZ 6202ZZ
20-30-7 Nitrile
rubber
Urea
VFC408A 6203ZZ 6203ZZ
22-35-7 Nitrile
rubber
Urea
VFC508A 6205ZZC3 6205ZZ
35-47-7 Nitrile
rubber
Urea
VFC608A 6205ZZC3 6205ZZ
35-47-7 Nitrile
rubber
Urea
VFC708A 6306ZZC3 6206ZZ
38-58-8 Nitrile
rubber
Urea
VFC808A 6308ZZC3 6207ZZ
50-64-10 Silicon
rubber
Urea
VFC908A 6309ZZC3 6306ZZ
55-72-9 Silicon
rubber
※
Common to VFC-A, VFC-P,VFC-PN, VFC-AN, VFC-A-4Z
11
Содержание VFC 408
Страница 17: ...VFC088A VFC608A VFC088P VFC508P VFC708A VFC908A 16 ...
Страница 18: ...VFC088AF VFC608AF VFC088PF VFC508PF 17 ...