Delta Elektrogas- EVRMNC EVRM6NC Manual Reset Safety Valve For gas

 Safety solenoid valves for gas with manual reset normally closed :

The EVRM-NC type valve is a manual reset safety valve that is normally closed. When the coil is not energized the spring works 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 at the top of the coil.

Once opened, the valve can maintain this position until an electric current circulates on the coil. In the absence of electric current, the valve closes rapidly and remains shut upon return of the same. Once the causes for the lock have been eliminated, an opening must be worked manually as described above.

This type of device, connected with one or more pressure switches is suitable for locking operations upon gas, air, or electric current failure, and is qualified for continuous service (permanently live).

Function And Application :

The EVRM-NC type is a manual reset safety valve that is normally closed. When not in the working position the spring works on the shutter keeping the gas orifice closed. Simply by energizing the coil, the valve does not open. It's necessary to manually move the reset rod located at the top of the coil.

Once opened, the valve can maintain this position until an electric current circulates on the coil. In the absence of electric current, the valve closes rapidly and remains shut upon return of the same. Once the causes for the lock have been eliminated, the valve must be opened manually as described above.


Specification :

Connections

Internal threaded ISO 7-1 from Rp3/8 to Rp2½

ANSI-ASME B1.20 from 3/8” NPT to 2”½NPT

Flanged ISO 7005 PN16 from DN40 to DN300

ANSI-ASA-ASME B16.5 class 150 from 2” to 10”

Voltage ratings

230 VAC 50/60 Hz

120 VAC 50/60 Hz

110 VAC 50/60 Hz

24 VAC/DC

Voltage tolerance

-15% to +10%

Temperature

-15°C to +60°C (+5°F to +140°F)

Max. operating pressure

600 mbar (9 psig)

6 bar (90 psig)

Body test pressure

1 bar (15 psig)

9 bar * (130 psig)

Closing time

< 1 second

Gas strainer

600 ┬Ám (0.02 in), metal mesh (except 6 bar models)

Enclosure

IP65  models with ISO plug DN10... DN 80 (NEMA 4)

IP54 models with terminal box DN100 ... DN 300 (NEMA 3)

(IP65 optional with cable NEMA 4)

Cable gland

M20 models with terminal box DN100...DN300

PG 9 models with ISO Plug DN10...DN80

Wires cross-section

2,5 mm2 max. (AWG 12) for terminal board

1,5 mm2 max. (AWG 14) for ISO plug

Electrical safety

Class I (EN 60335-1)

Coil winding insulation

Class H (200°C, 392°F)

Coil thermal resistance

Class F (155°C, 311°F)

Data Sheet Elektrogas-EVRMNC EVRM6NC

Reference: http://delta-elektrogas.com/

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