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DN125 5 inch Flanged Gas safety shut off valve Elekrogas VMH93.
Function: 2/2 way normally closed
Operation: electro hydraulic. When energised the oil pump lifts the piston, the piston opens against the combined force of spring and gas pressure. If the power is removed , the relief valve opens quickly shutting the valve.
Actuator LED: visual LED confirmation that unit is electrically energised.
Port: 5 inch DN125 PN16 flange ISO7005
Certified: EN161 Class A group 2 back pressure sealing compliant for natural gas, CE Certificate 0063C01798, Gas appliance EU directive 2009/142/EC by Kiwa, PED 2014/68/UE (ex 97/23/CE) by CSI Spa.
Media: air and non-aggressive gases included in the 1, 2 and 3 families (EN 437), option (J) Biogas and (K) coke oven gas.
Seals: NBR, FPM and PTFE
Pressure: 0 to 500 millibar.
Kvs Flow factor: 250.0 cubic meters an hour
CPI Switch: closed position indication feed back switch (included)
Voltage: 230vAC is standard, option 110vAC
Coil: 20VA holding, inrush 110 Watt,
Coil duty: 30 cycles per hour Max
Opening time: 25 to 40 Seconds
Coil option: ATEX Ex-proof for hazardous area zone 2 according to ATEX 94/9/EC directive.
Duty: Qualified for continuous service (100% ED).
Protection: IP65 DIN43650A ISO 4400 plug to EN60529
Auxiliary ports: G1/4 pressure gauge on two sides in both inlet and outlet chamber to connect manometers, pressure switches, leakage tester or other gas equipment.
Filter: 600μm incorporated fine mesh filter protects the valve seat and disc as well as downstream components.
The VMH93 is a safety shut off valve for gas with hydraulic actuator and are suitable for air or gas blocking and releasing controls, required in the main pipe of gas power burners, atmospheric gas boilers, industrial kilns and others gas consuming equipment.
The valve is open only when energized: if, for any reason, power supply goes down, the valve closes immediately (intrinsic safe),
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.
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