Normally closed electromagnetic safety valves for air and non-aggressive gases (according to EN437) with manual reset.
General features
Voltage tolerance: -15% / +10%.
Environment temperature: -15°C / +60°C.
Working pressure: 500 mbar Max.
Closing time < 1 second.
Protection degree: IP65.
Cable gland: PG 9.
Pressure inlets: G1/4” on two sides (except models with brass body).
Limit switch: by request from 3/4” to 4”.
Gas type: Air and non-aggressive gases (EN 437).
Filter: 600 μm (except models with brass body).
Electric features
Rated voltage: 230Vac – 50/60Hz or 24Vac/dc
Upon request valves are available with coils for the following voltages: 110V AC 50/60Hz or 12V AC/DC
ADVANTAGES
0
Normally closed electromagnetic safety valves for air and non-aggressive gases (according to EN437) with manual reset.
Advantages
TECHNICAL SPECIFICATION
CODE
CONNECTION TYPE
PASSAGE
DN
POWER SUPPLY
BODY
MAXIMUM PRESSURE Mbar
ABSORPTION W
ZDVGRM15NC
threaded RP 1/2
15
230Vac 50/60Hz
brass
500
8
ZDVGRM20NC
threaded RP 3/4
20
230Vac 50/60Hz
brass
500
8
ZDVGRM25NC
threaded RP 1
25
230Vac 50/60Hz
brass
500
8
ZDEVRM32NC
threaded RP 1 1/4
32
230Vac 50/60Hz
aluminum
500
12
ZDEVRM40NC
threaded RP 1 1/2
40
230Vac 50/60Hz
aluminum
500
12
ZDEVRM50NC
threaded RP 2
50
230Vac 50/60Hz
aluminum
500
12
ZDEVRMF65NC
flange DN 65
65
230Vac 50/60Hz
aluminum
500
12
ZDEVRMF80NC
flange DN 80
80
230Vac 50/60Hz
aluminum
500
12
ZDEVRMF100NC
flange DN 100
100
230Vac 50/60Hz
aluminum
500
45
ZDVGRM15NCF
threaded RP 1/2
15
24Vac
aluminum
500
8
ZDVGRM20NCF
threaded RP 3/4
20
24Vac
aluminum
500
8
ZDVGRM25NCF
threaded RP 1
25
24Vac
aluminum
500
8
ZDEVRM32NCF
threaded RP 1 1/4
32
24Vac
aluminum
500
12
ZDEVRM40NCF
threaded RP 1 1/2
40
24Vac
aluminum
500
12
ZDEVRM50NCF
threaded RP 2
50
24Vac
aluminum
500
12
ZDEVRMF65NCF
flange DN 65
65
24Vac
aluminum
500
12
ZDEVRMF80NCF
flange DN 80
80
24Vac
aluminum
500
12
ZDEVRMF100NCF
flange DN 100
100
24Vac
aluminum
500
45
HOMOLOGATION AND INSTALLATION
Homologation
Complies with 73/23/CEE; 89/336/CEE standards
Installation and use
Check the correspondence between flow direction and the arrow printed on valve body, verify the correct alignment of connecting pipes and allow enough space from the walls to allow free air circulation.
The valve may be mounted with coil in horizontal or vertical position. The coil may be oriented 360 degrees in any direction.
Install the valve in an area protected from rain and water splashes or drops.
For electrical connection remove the cap of the plug and connect power cables to circuit clamps.
Normally closed gas safety valve with manual reset.
When isn’t in working position, the spring acts on the shutter keeping the gas passage closed. Simply by energizing the coil the valve does not open.
It is necessary to manually move the reset rod located on the top of the coil. Once opened, the valve can maintain this state until the electric current circulates through the coil.
In absence of electric current the valve closes rapidly and remains shut off when the power supply returns.
Once the cause of stoppagee has been eliminated, the valve must be opened manually, as described above.
This type of device, used with one or more pressure switch(es) is suitable for shutting off when there is no gas, air, or current and is suitable for continuous service (always live).
