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General| Brand | Elektrogas |
|---|---|
| Model | VMR Series |
| Category | Control Unit |
| Language | English |
Details the use of aluminum alloy die-cast or hot-pressed brass and connection sizes for the VMR valve.
Covers suitability for gas families, intrinsic safety on power loss, and continuous service rating.
Describes integrated filters, pressure gauges, electrical connection options, and EN161 compliance.
States that valves are 100% tested by computerized machinery and are fully warranted.
Explains the safety shutting mechanism using auxiliary power and spring action for gas blocking.
Describes typical installation as a safety and regulating device in gas trains for industrial applications.
Lists threaded and flanged connection types and available voltage ratings for the valves.
Covers voltage tolerance, power consumption, ambient temperature, and maximum operating pressure.
Details closing/opening times, filter specifications, protection class, and cable gland types.
Specifies coil winding insulation, thermal resistance, and materials in contact with gas.
Explains the graphical representation of pressure drop vs. flow rate for different gases.
Provides the formula to convert flow rates between different gas types based on specific gravity.
Explains how to adjust pressure drop readings for different operating pressures.
Provides the formula for calculating the Kv flow factor required for proper valve selection.
Offers recommendations for pressure drops and flow velocities for optimal valve performance.
Details the model designations for various configurations, materials, and voltage ratings.
Explains how to modify order codes for different inlet pressures and non-standard voltages.
States compliance with safety shut-off functions for gaseous fuels and Gas Appliances Directive.
Lists conformity with Electromagnetic Compatibility and Low Voltage Directives.
Confirms certification according to UNI EN ISO 9001 by Kiwa Gastec Italia.
Emphasizes pre-installation checks and the need to shut off gas and power before work.
Provides guidelines for piping connections, threaded, and flanged model installation.
Presents a table of maximum bending moment, torque, and screw driving torque values.
Step-by-step guide for connecting cables to the terminal box version of the valve.
Step-by-step guide for connecting cables to the standard plug version of the valve.
Explains that coil heating during continuous service is normal and how to improve cooling.
Details the steps for adjusting the flow rate using the regulation screw with an Allen wrench.
Advises making adjustments while burner is operating and warns against low capacity settings.
Stresses confirming the coil is the cause of failure and having an identical spare part available.
Lists the sequence for safely disconnecting wires, removing the coil, and reassembling.
Lists checks for gaskets, electrical connections, pipe connections, and basic valve operation.
Details checks for O-rings, stem, spring, sliding rings, sealing gasket, and filter for troubleshooting.
Guides on reassembling the valve components and checking for leaks after servicing.
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