2
Printed in Italy - EE167/0105
EVRM-NA
Safety solenoid valves for gas
Manual reset - Normally open
The EVRM-NA type valve is a manual reset safety valve
that is normally open.
This type of device, connected
with one or more gas leakage detectors or alarm signals
for the presence of carbon monoxide, is suitable for
performing locking operations on the gas line.
The EVRM-NA type valves are made in accordance with
EN161 standard (when applicable). All models are
conforming with the European Directives 89/336 EEC
and 73/23 EEC.
1- Features
Wide range for inlet/outlet connections, from 3/8” to
8” pipes sizing.
Provided with G1/4” pressure gauge on two sides in
the inlet pressure chamber (except brass models).
Others gauge points on request.
Optional G1/8” connection for closed position
indicator micro switch (on request from 3/4" to 8").
Fine mesh filter incorporated to prevent dirty
contamination of the seal seat (except brass
models).
Maximum operating pressure 500 mbar.
Suitable for air and non-aggressive gases (EN 437,
1, 2 and 3 families).
Coil insulation is class H (180°C).
Terminals with DIN 43650 plug and PG connector.
Valves are 100% tested by computerized testing
machineries and are fully warranted.
For valve identification see the following charts.
WARNING
-
This control must be installed in compliance with
the laws in force.
-
Read instructions before use.
-
Elettromeccanica Delta S.p.a. reserves the right
to update or make technical changes without
prior notice.
Fig. 1
2- Technical specifications
Connections ………………..
Gas threaded ISO 7/1
from Rp3/8 to Rp2
Flanged PN16 – ISO 7005
from DN40 to DN200
Voltage rating ……………...
230 VAC 50/60 Hz
Voltages on request
………. 110 VAC 50/60 Hz
24 V AC/DC
12 VDC
Voltage tolerance ………….
-15% / +10%
Power consumption ……….
see charts
Environment temperature …
-15°C / +60°C
Max. working pressure ……
500 mbar
Flow capacity ………………
see charts
Disc sealing …..……………
NBR
Closing time ………………..
< 1 sec.
Protection class ……………
IP 54 (EN60529)
Cable gland …………………
PG09
Overall dimensions ………..
see charts