１
1. Product Outline
1.1 Purpose of Use and Prohibitions
This product is a dry vacuum pump which employs reciprocating motion of a rubber
diaphragm for vacuum discharge.
Observe the following prohibitions to ensure normal operation of the pump.
Prohibitions
(1) This pump employs only vacuum operation, and must not be pressurized.
(2) Do not re-sell, repair, or modify this pump without the approval of the
manufacturer.
(3) This pump is not designed to be corrosion-proof. Use it only with clean air at
normal temperature, or gases of equivalent characteristics.
(4) Do not attempt to discharge gases containing particles, dust, water, or corrosive
gases.
(5) Do not operate the pump for long periods at near-atmospheric pressure.
1.2 Specifications
Table 1-1 Product Specifications
Model
DAL-181D
DAL-361S
Voltage
200
Exhaust rate
50Hz
180 L/min
360 L/min
60Hz
210 L/min
390 L/min
Operating pressure
3.33kPa
17.3kPa
Motor
3
Φ
,200V,500W,4P
Rated current
2.4/2.9A (50/60Hz)
Rotational speed
1410/1700rpm
Outlet piping
O.D.
Φ
21
×
I.D.
Φ
15 (
Ｇ
1/2)
Weight
39.0kg
Ambient temperature
during use
7 ~ 40
℃
Dimensions
388mm (W)
×
523.6mm (L)
×
274mm (H)
1.3 Thermal Protection Relay
1) This pump is fitted with an automatic reset thermal protection relay for overload
protection. This device shuts off the motor power supply circuit automatically to
prevent burn-out if the motor temperature rises due to a pump fault which prevents
rotation, or if load becomes excessive.
2) It is recommended that additional protective devices (eg. earth leakage breaker, motor
breaker) be fitted.
!
Warning
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Note
