IM No.: IM/V/0015, Rev. 7
Date: 14.10.2019
Page 1 of 6
MOUNTING, OPERATING, TESTING & MAINTENANCE INSTRUCTIONS
FOR ROTEX 3/2 DIRECT ACTING HIGH ORIFICE SOLENOID VALVE
MODEL 30308, 30334, 30333, 30309, 30329
ROTEX retains all rights to this publication.
All details within this manual and the catalogue are subject to change without manner.
ROTEX will not be responsible for any damage whatsoever arising from the use of the Solenoid Valve, due to misuse
or incorrect installation or misinterpretation of the information contained herein.
30308-5 | 30334-5 | 30333-5 | 30334-7
30309-10 | 30329-5 | 30329-7
30329-10
(A) OPERATING PRINCIPLE
NC Operation
In de-energized condition of the solenoid, applied the pressure at inlet port # 1, media passed up to the duse hole
which is blocked by plunger assembly. In this state inlet port # 1 and outlet port # 2 are disconnected. Outlet port # 2
and exhaust port # 3 are connected. Media cannot come out from the outlet port # 2.
In energized condition of the solenoid, plunger assembly moves up now when we applied the pressure at inlet port # 1
media pressure come out from the outlet port # 2 through the duse hole. In this state inlet port #1 & outlet port # 2 is
connected and exhaust port # 3 is blocked. So media comes from the outlet port # 2
NO Operation
In de-energized condition of the solenoid, applied the pressure at inlet port # 3. In this state inlet port # 3 and outlet
port # 2 are connected. Outlet port # 2 and exhaust port # 1 are disconnected. Media come out from the outlet port # 2.
In energized condition of the solenoid, plunger assembly moves up now when we applied the pressure at inlet port # 3.
In this state inlet port # 3 & outlet port # 2 disconnected and outlet port # 2 and exhaust port # 1 are connected. So
media cannot come out from the outlet port # 2.
MIXING OPERATION
Inlet at Port 1 and Port 3 are alternately connected to port 2 when the solenoid is energized / de-energized.
DIVERTING OPERATION
Inlet at Port 2 is alternately connected to Port 1 or Port 3 when solenoid is energized / de-energized.
VALVE MODEL 30308, 30334
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