NieRuf EV01 - 3 Design and Function; Type Label; Description

3 Design and function
9/23 OPERATING INSTRUCTIONS FOR METAL SOLENOID-VALVES Index: 0
3 Design and function
3.1 Type label
Layout of the type label:
1 Article
2 Connection
3 Nominal diameter, voltage, function
4 Medium temperature
5 Pressure range
6 Commission number
7 Serial number
3.2 Description
The metal valve is a seat valve fitted with a diaphragm seal and is used for opening and closing
pipelines. It is fully automatic and glandless and therefore practically maintenance-free.
§ Available as normally closed (NC) or normally open (NO) variants.
§ Connector complies with DIN EN 175301-803 form A.
o Types EV01 / -09 and MV01 / -09 with DIN EN 175301-803 form B
§ Flow direction as per direction arrow on the valve body.
§ Valves are not suitable for back pressure.
§ Fitting position:
- Solenoid coil ideally at the top.
- Fit valve horizontally or vertically into the line.
Type EV01 /-03 and MV01 /-02 /-03
The valve is a direct-controlled seat valve. No differential pressure is required for opening or closing.
Type EV04 /-05 and MV04 /-05
The valve is servo-controlled and requires a differential pressure to open and close.
Type EV04/MV04 requires a differential pressure of 0.1 bar between the inlet and outlet.
Type EV05/MV05 requires a differential pressure of 0.5 bar between the inlet and outlet.
Type EV06 /-07, MV06 /-07 and FV01
The valve is servo-controlled with positive lift. No differential pressure is required for opening and
closing.
Type EV08 /-09 and MV08 /-09
The valve is a direct-controlled seat valve. No differential pressure is required for opening or closing.