Elektrogas VMH Safety shut off valves for gas

VMH Elektrogas Safety Automation Valve

Delta-Elektrogas | VMH Series | Automatic Safety Valves

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

The 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

Connections Flanged PN16 – ISO 7005 from DN65 to DN300
Voltage rating (-15%/+10%) 230 VAC or 110 VAC 50/60 Hz
Power consumption 20VA (START 110 W)
Only for DN 250–300: 25VA (START 115W)
Ambient temperature -15°C / +60°C
Max. operating pressure see Tab. Dimension
Flow capacity see Tab. Dimension
Opening time see Tab. Dimension
Filter 600 µm, metal mesh
Protection class IP65 (EN 60529)
Cable gland Plug ISO 4400 with cable gland PG9
Materials in contact with a gas Aluminum alloy
Brass
Stainless steel
Plated steel
Anaerobic adhesive
Nitrile rubber (NBR)
Fluoroelastomer (FPM)
Polytetrafluoroethylene (PTFE)

Dimension

Model Conn. Pmax
[bar]
Opening
time *1
[sec]
Flow
Kvs
[m³/h]
Max cycles
per hour *2
Overall dimensions [mm] Weight
[Kg]
A B C D Int h
VMH7* DN 65 1,6 10..15 83,0 60 200 305 350 536 145 4×18 14
VMH8* DN 80 1,6 10..15 92,0 60 200 305 350 536 160 8×18 14
VMH9* DN 100 1,3 15..25 152,0 40 250 350 366 571 180 8×18 18
VMH93* DN 125 0,5 25..40 250,0 30 310 460 461 671 210 8×18 34
VMH93U DN 125 1,3 25..40 250,0 20 310 460 461 671 210 8×18 34
VMH95* DN 150 0,5 25..40 315,0 30 310 460 461 671 240 8×23 36
VMH95U DN 150 1,3 25..40 315,0 20 310 460 461 671 240 8×23 36
VMH98* DN 200 0,2 35..50 476,0 20 370 546 494 730 295 12×23 52
VMH98U DN 200 1,3 35..50 476,0 15 370 546 494 730 295 12×23 52
VMH910U DN 250 1,3 40..60 660,0 15 405 600 560 852 355 12×28 59
VMH912U DN 300 0,6 45..75 970,0 15 460 700 596 923 410 12×28 106

* 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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