6
3.7 Piping
1) Install piping carefully to prevent leaks.
2) Piping connected to the inlet should be at least 12 mm inside diameter.
3) Ensure that piping connected to the outlet does not cause back pressure. Maximum back
pressure is 0.03 MPa (gauge pressure).
4)
In case of selecting the inlet pipe and exhaust pipe that are not from our products, please
select the exhaust pipe that has same or larger inner diameter length with the inlet pipe.
5) When evacuating a vessel, ensure that a shut-off valve is placed between the pump inlet
pipe and the vessel (see Fig.3.2).
Fig.3.2 Example of Piping Used When Evacuating a Vessel
3.8 Storage
Turn the switch OFF (set to O), remove the power cord, place the rubber caps over the inlet
and outlet, and store the pump in an area of low humidity.
Vacuum pump
Filter
Leak valve
Shut-off valve
Vessel