Safety solenoid valves for gas

Manual Reset – Normally Open

General information
Technical data sheet

The EVRM – NA/6NA solenoid valve is a normally open protection valve with manual rearmament. The shut-off function is electrically activated. Connected with one or more methane gas detectors, safety thermostats or carbon monoxide detectors, the solenoid valve can close the gas flow.

The solenoid valves are constructed of die-cast aluminum alloy with a wide range of input/output connections from DN10 (3/8") to DN 300 (12").

The gaskets are made of NBR certified rubber for gas use (EN549).

Two working pressure ranges: Low pressure (0 - 600 mbar) and medium pressure (0 - 6 bar);

In normal operating state the solenoid valve is not supplied resulting in economical operation;

Built-in fine filter to protect both the valve seat and disc and downstream components and prevent contamination with impurities;

1/4" connection on both sides of the input chamber for coupling a pressure gauge, pressure switches, gas leak testers or other gas equipment. Flanged models are fitted with fittings also in the output chamber;

The coils are equipped with ISO 4400 connector and cable sealing gaskets to avoid ingress of water and impurities, thus allowing safe installation outside buildings;

All components are designed to withstand any mechanical, chemical and thermal conditions that may occur during typical operation. Effective impregnation and surface treatments have been used to improve mechanical robustness, closure system and corrosion resistance of components.

The solenoid valves are tested 100% on computer test stands, and are fully guaranteed.


ISO 7-1 internal thread connection from RP3/8 to Rp2½ or ANSI-ASME B1.20 from 3/8"NPT to 2"NPT;
Flange connection ISO 7005 PN16 from DN40 to DN300 or ANSI-ASA-ASME B16.5 class 150 from 2" to 10";
Supply voltage: 230 VAC 50/60 Hz;

Supply voltage variation: -15% to +10%;

Ambient temperature/environmental temperature: -20°C to +60°C;

Maximum working pressure: 600 mbar (9 psig); 6 bar * (90 psig);

Body test pressure: 1 bar (15 psig); 9 bar * (130 psig);

Closing time: < 1 second;

Filter: 600 μm (0.02 in), metal mesh;

Housing: IP54 (NEMA 3) (IP65 optional NEMA 4);

Cable insulation: PG 9;

Cable section: 1.5 mm2 max. (AWG 14);

Electrosecurity: Class I (EN 60335-1);

Coil winding insulation: Class H (200°C, 392°F);

Coil thermal resistance: Class F (155°C, 311°F);


Manufacturer: Elettromeccanica Delta

Country of origin: Italy

Primatech has exclusive rights in Romania for these products