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VMM Multiple safety solenoid valve for gas regulating trains DN20 … DN80

ELEKTROGAS – Technical Sheet EE163 - 01/19 The VMM type valve is a combination of two solenoid valves in an only compact and versatile valve housing. This type of device is suitable for air or gas blocking and releasing controls (with one or two stages operation), required in gas power burners, atmospheric gas boiler, industrial kilns and others gas consuming appliances. The valves are made of aluminum alloy die-cast, with a range for inlet/outlet connections from DN20 (3/4”) up to DN80 (3”). Sealings are made of NBR-based rubber certified for use with gas (EN 549). Pipe connections meet...

ELEKTROGAS – Technical Sheet EE163 - 01/19 The VMM type valve is a safety shutting device using auxiliary power supply. The first valve (A) is a fast opening safety solenoid valve. When it is de-energized, the spring pushes on the seal disc, keeping the gas passage closed. Now, the inlet chamber is under the gas line pressure, and it forces on the disc too, improving the seal. When the coil is powered the valve opens rapidly, against the strength of the spring and gas pressure. If the power supply is shut off, the valve rapidly closes, interrupting the gas flow. Equally, the second valve...

ELEKTROGAS - Technical Sheet EE163 - 01/19 Ambient temperature Media temperature Max. operating pressure Body test pressure Flow capacity Closing time Opening time Pressure ports Gas strainer Electrical safety Coil winding insulation Coil thermal resistance 1 bar (15 psig) see charts < 1 second Adjustable G1/4 (add. G1/8 onto flanged models) 600 pm (0.02 in), metal mesh IP54 (NEMA 3) optional IP65 with cable (NEMA 4) M20x1,5 for terminal box PG 9 for ISO plug 2,5 mm2 max. (AWG 12) for terminal board 1,5 mm2 max. (AWG 14) for ISO plug Class I (EN 60335-1) Class H (2000, 392TF) Class F (1550,...

ELEKTROGAS - Technical Sheet EE163 - 01/19 Overall dimensions (mm/in) C D E F

ELEKTROGAS - Technical Sheet EE163 - 01/19 (Pressure drop) Formula of conversion from air to other gases Tab. 3

ELEKTROGAS - Technical Sheet EE163 - 01/19 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) Example: In the 2” solenoid valve with an air flow of 60 Nm3/h there is a pressure drop Ap = 6 mbar. If we consider that 60 m3/h is the flow at 200 mbar of inlet pressure, then the pressure drop to be consider is: Ap = 6x(1+0,2) = 7,2 mbar Normally, pressure drop and flow rate for the valves are read from the gas flow diagram. However, the valves...

ELEKTROGAS - Technical Sheet EE163 - 01/19 Ordering information By-pass valve on the Right side (seen from the inlet) 0 = none 1 = V” (DN15) Fast 3 = 1” (DN25) Fast By-pass valve on the Left side (special execution) (seen from the inlet) 0 = none 1 = V” (DN15) Fast 3 = 1” (DN25) Fast Special versions L Low power (when not standard) D Execution with pilot valve 1/2” D1 Execution with pilot valve 1” D2 Execution with NO vent valve 1” P Proof of closure (POC) for US market only.

ELEKTROGAS - Technical Sheet EE163 - 01/19 ELEKTROGAS - Technical Sheet EE163 - 01/19 ■ The valves can be supplied in special versions for aggressive gases such as biogas (version J) and COG (version K), they are free of non-ferrous metals and provided with special seals. ■ The valves are available with a proof-of-closure switch (POC), comply with NFPA 86 requirements (version P). A factory adjusted SPDT switch inside an enclosure mounted on the bottom of the valve, provides an electrical signal indicating the valve position. A two-colored led gives also a visual indication of the valve...

ELEKTROGAS - Technical Sheet EE163 - 01/19 ELEKTROGAS - Technical Sheet EE163 - 01/19 Design, installation and servicing To assure a proper and safe operation, as well as a long service life of the valve, consider the following recommendations during the design of the system where the valve will be installed: S Ensure that all the features of your system comply with the specifications of the valve (gas type, operating pressure, flow rate, ambient temperature, electrical voltage, etc.). S Valve may be mounted with coil in horizontal or vertical position, not upside down. Coil may be oriented...

ELEKTROGAS – Technical Sheet EE163 - 01/19 The product complies with the essential requirements of the following European Directives and their amendments: 2016/426/EU (Gas Appliances Regulation) 2014/34/EU (ATEX) when shown upon the product 2014/30/EU (Electromagnetic Compatibility) 2014/35/EU (Low Voltage Directive) 2011/65/EU (RoHS II) The product is suitable for applications comply with NFPA 86 (Class 7400). Factory Mutual Approval Identification: 0003061781 The product complies with the Technical Regulations TP TC 004/2011-016/2011-020/2011032/2013 of Russia, Belarus and Kazakhstan....