Operating manual Piston Pump EvoMotion 20-30
5 Description
Order number 2333553 | Edition 09/2020 25
5.6 OPERATING ELEMENTS
5.6.1 Pressure Regulator Unit
1 Pressure regulator 5 Compressed air input
2 Ball valve 6 Pressure regulator – AirCoat air (op-
tion)
3 Pressure gauge (air inlet pressure) 7 Safety and motor pressure relief valve
(see Chapter Protective and Monitor-
ing Equipment [819])
4 Pressure gauge – AirCoat air (option)
Ball valve positions:
1 Open: working position 2 Closed: the air motor can still be under
pressure
5.6.2 Return valve
Installing a return valve is absolutely necessary for carrying out a complete depressurization
of the pump (see Chapter Pressure Relief / Work Interruption [834]).
The suitable return valves (ball valves), return pipes and hoses for the device can be found in
the accessories list.