Elektrogas VMH Safety shut off valves for gas

Elektrogas VMH Safety shut off valves for gas

Delta-Elektrogas | VMH Series | Automatic Safety Valves

Elektrogas Safety shut off valves for gas with a hydraulic actuator  DN65 -  DN300

The Elektrogas VMH type valve is a safety shut off valve for gas with a hydraulic actuator. It is suitable for air or gas blocking and releasing controls, required in the main pipe of gas power burners, atmospheric gas boilers, industrial kilns, and other gas-consuming appliances.

Feature

  • The valves are made of aluminum alloy with a range for connections from DN 65 up to DN 300.
  • Pipe connections meet group 2.
  • Suitable for use with air and non-aggressive gases included in the 1st, 2nd and 3rd families (EN437).
  • Special versions for aggressive gases.
  • The valve is open only when energized: if, for any reason, power supply goes down, the valve
    closes immediately (intrinsic safe).
  • Qualified for continuous service (100% ED).
  • Size DN65-80 is equipped with a flow rate adjustment.
  • An incorporated fine mesh filter protects the valve seat and disc as well as downstream components and prevents dirty contamination.
  • Provided with the G1/4" pressure gauge on two sides in both inlet and outlet chamber to connect manometers, pressure switches, leakage tester or other gas equipment.
  • The actuator is provided with ISO 4400 plug for easy cabling. The protection class is IP65 (EN
    60529).
  • The actuator is provided with a led to visualize when it is energized.
  • All components are designed to withstand any mechanical, chemical and thermal condition
    occurring during typical service. Effective impregnation and surface treatments have been used
    to improve mechanical sturdiness, sealing, and resistance to corrosion of the components.
  • Valves are 100% tested and fully warranted.

 

Baca juga: Elektrogas automatic safety solenoid valves

 

Specification

ConnectionsFlanged PN16 – ISO 7005 from DN65 to DN300
Voltage rating (-15%/+10%)230 VAC or 110 VAC 50/60 Hz
Power consumption20VA (START 110 W)
Only for DN 250–300: 25VA (START 115W)
Ambient temperature-15°C / +60°C
Max. operating pressuresee Tab. Dimension
Flow capacitysee Tab. Dimension
Opening timesee Tab. Dimension
Filter600 ┬Ám, metal mesh
Protection classIP65 (EN 60529)
Cable glandPlug ISO 4400 with cable gland PG9
Materials in contact with a gasAluminum alloy
Brass
Stainless steel
Plated steel
Anaerobic adhesive
Nitrile rubber (NBR)
Fluoroelastomer (FPM)
Polytetrafluoroethylene (PTFE)

Dimension

ModelConn.Pmax
[bar]
Opening
time *1
[sec]
Max cycles
per hour *2
Overall dimensions [mm]Weight
[Kg]
ABCDh
VMH7*DN651,610..15602003053505364x1814
VMH8*DN801,610..15602003053505368x1814
VMH9*DN1001,315..25402503503665718x1818
VMH93*DN1250,525..40303104604616718x1834
VMH93UDN1251,325..40203104604616718x1834
VMH95*DN1500,525..40303104604616718x2336
VMH95UDN1501,325..40203104604616718x2336
VMH98*DN2000,235..502037054649473012x2352
VMH98UDN2001,335..501537054649473012x2352
VMH910UDN2501,340..601540560056085212x2859
VMH912UDN3000,645..751546070059692312x28106


* model with CE 0063CO1798 certificate

*1 opening time depends on ambient temperature, real voltage, and inlet pressure
*2 VMH valves are not suitable for a very high number of cycles, as used in pulse firing.

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