VMERNA
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VMRNA Automatic vent valve for gas appliances 3/4”- 1”½

ELEKTROGAS - Technical Sheet EE169 - 1118

ELEKTROGAS - Technical Sheet EE169 - 1118 ELEKTROGAS - Technical Sheet EE169 - 1118 Functioning and application The VMRNA type valve is a vent valve for relief line. When it is de-energized, the spring pushes on the magnetic core and the disc is open, hence gas can flow to relief line. This device is usually integrated in burning system: when the system is de-energized, upstream safety shut off valves are closed, while vent valve is open, so that fuel gas inside pipe can be discharged in a safe area. In case of leakages of shut off valves, gas goes to relief line in a safe condition. When...

ELEKTROGAS - Technical Sheet EE169 - 1118 ELEKTROGAS - Technical Sheet EE169 - 1118

ELEKTROGAS - Technical Sheet EE169 - 1118 ELEKTROGAS - Technical Sheet EE169 - 1118 Formula of conversion from air to other gases V = k • V GAS AIR Standard conditions: 15°C, 1013 mbar, dry When the flow read on the diagram is referred to operating pressure instead of standard conditions, the pressure drop Ap read on the diagram must be multiplied for the factor: (1+ relative pressure in bar)

ELEKTROGAS – Technical Sheet EE169 - 1118 Valve type VMRNA Connections size 2 = ¾” 3 = 1” 35 = 1”¼ 4 = 1”½ M = integrated in VMM 1”¼-3” (*) Supply voltage and operating pressure -5 = 230V AC 500mbar -60 = 230V AC 6bar (only ¾”-1”) -5.B = 110V AC 500mbar -60.B = 110V AC 500mbar (only ¾”-1”) -2.C = 24V AC/DC 200mbar -20.C = 24V AC/DC 2 bar (only ¾”-1”) Special version N = NPT connection and 120V AC voltage J = version for bio gas (*) Pictures below show a VMM valve assembled with an integrated VMRNA element: VENT LINE

ELEKTROGAS - Technical Sheet EE169 - 1118 VMRNA valve can be manufactured with NPT connection (ANSI-ASME B1.20) and 120V AC coil. Vent valve can be supplied in J version suitable for aggressive gases (i.e. biogas). This version is free of nonferrous metals and equipped with special seals. provided with a sealed 2 and 22, according to • Enclosure class can be increased up to IP65. The valves will be terminal box and cable set. • Valves can be provided with a special execution for use in Zones 2014/34/EU Directive (ATEX): category II 3 G,D Ex tc IIIB T135°C Dc X or Ex tc IIIC T135°C Dc X...