shutoff valves
Motorized valves for gas VK
Class A gas safety valves to EN 161 for automatic shut-off, closed when de-energized, slow opening, quick closing, for gas and air, EU certified.
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Overview
Class A gas safety valves to EN 161 for automatic shut-off, closed when de-energized, slow opening, quick closing, for gas and air, EU certified.
Features & Benefits:
Features & Benefits:
- VK..Z for two-step operation
- VK..G with GGG 40 housing for steam boilers, open air or landfill systems
- VK..H with stronger drives for higher pressures
- VK..X explosion-proof design for zone 1 and 2 hazardous areas
- DN: 40 to 250
- Connection: thread or flange
- pu: max. 230 mbar to max. 8 bar
- Mains voltage: 100 V AC to 220/240 V AC
- AlSi or GGG 40 housing, electrical connection: terminals or standard plug with socket. The following versions are available:
- Valves with flow adjustment
- Valves with position indicator
- Valves with holding relay for manual restart
- Valves with Viton valve disc seal
Specifications
Fuel, Gas & Media Specifications
- Gas Type
- Natural Gas, Town Gas, LPG (gaseous), Biogas, Hydrogen, landfill gas, Clean Air
Storage/Transport Temperatures
- Storage/Transport Temperature Range
- -20 to +40 deg C
Standards & Certifications
- Explosion Protection Marking
- ATEX: II 2G Ex eb ob IIC T5 Gb; IECEx: Ex eb ob IIC T5 Gb
- Explosion-Proof Versions
- VK..X, VK..HX (Zone 1 and 2, ATEX and IECEx compliant)
- Safety Class
- Class 1
- Approvals
- CE (GAR, PED, EMC, LVD), UKCA, AGA, IECEx, ATEX, EAC
Dimensions & Weight
- Maximum Installation Height
- 2000 m AMSL
Environmental Conditions
- Ambient Temperature Range
- VK, VK..H, VK..Z: -15 to +60 deg C
- VK..X, VK..HX: -15 to +40 deg C
- Enclosure Rating
- IP54 (standard), IP65 (explosion-proof versions)
Installation & Mounting Specifications
- Installation Orientation
- Vertical upright or tilted (not upside down)
Connections & Interfaces
- Electrical Connections
- Plug (EN 175301-803), M20 cable gland, terminal (2.5 mm²)
- Connection Type
- Rp Internal Thread (ISO 7-1), Flange (ISO 7005, PN 16)
Electrical Specifications
- Maintenance Interval
- At least once a year; twice for biogas applications
- Mains Voltage
- 24 VDC, 100 to 240 VAC, 50/60 Hz
Pressure Specifications
- Inlet Pressure Range
- Up to 8 bar depending on model
Material Specifications
- Valve Body Material
- Aluminum alloy (AlSi) or GGG 40 cast iron (flanged versions)
Actuation, Valve & Motion Control Specifications
- Valve Plate Seal
- Perbunan, Viton
- Actuator Type
- Hydraulically actuated, closed when de-energized
- Opening Time
- DN 40: 5 seconds; DN 50-65: 8 seconds; DN 80-100: 10 seconds; DN 125-200: 13 seconds; DN 250: -
- Closing Time
- <1 seconds
Dimensions & Size Specifications
- Nominal Sizes
- DN 40 to 250
Overview
- Product Type
- Motorized valve for gas
Processing & Performance Metrics
- Duty Cycle
- 1
Fuel, Gas & Media Specifications
- Gas Type
- Natural Gas, Town Gas, LPG (gaseous), Biogas, Hydrogen, landfill gas, Clean Air
Storage/Transport Temperatures
- Storage/Transport Temperature Range
- -20 to +40 deg C
Standards & Certifications
- Explosion Protection Marking
- ATEX: II 2G Ex eb ob IIC T5 Gb; IECEx: Ex eb ob IIC T5 Gb
- Explosion-Proof Versions
- VK..X, VK..HX (Zone 1 and 2, ATEX and IECEx compliant)
- Safety Class
- Class 1
- Approvals
- CE (GAR, PED, EMC, LVD), UKCA, AGA, IECEx, ATEX, EAC
Dimensions & Weight
- Maximum Installation Height
- 2000 m AMSL
Environmental Conditions
- Ambient Temperature Range
- VK, VK..H, VK..Z: -15 to +60 deg C
- VK..X, VK..HX: -15 to +40 deg C
- Enclosure Rating
- IP54 (standard), IP65 (explosion-proof versions)
Installation & Mounting Specifications
- Installation Orientation
- Vertical upright or tilted (not upside down)
Connections & Interfaces
- Electrical Connections
- Plug (EN 175301-803), M20 cable gland, terminal (2.5 mm²)
- Connection Type
- Rp Internal Thread (ISO 7-1), Flange (ISO 7005, PN 16)
Electrical Specifications
- Maintenance Interval
- At least once a year; twice for biogas applications
- Mains Voltage
- 24 VDC, 100 to 240 VAC, 50/60 Hz
Pressure Specifications
- Inlet Pressure Range
- Up to 8 bar depending on model
Material Specifications
- Valve Body Material
- Aluminum alloy (AlSi) or GGG 40 cast iron (flanged versions)
Actuation, Valve & Motion Control Specifications
- Valve Plate Seal
- Perbunan, Viton
- Actuator Type
- Hydraulically actuated, closed when de-energized
- Opening Time
- DN 40: 5 seconds; DN 50-65: 8 seconds; DN 80-100: 10 seconds; DN 125-200: 13 seconds; DN 250: -
- Closing Time
- <1 seconds
Dimensions & Size Specifications
- Nominal Sizes
- DN 40 to 250
Overview
- Product Type
- Motorized valve for gas
Processing & Performance Metrics
- Duty Cycle
- 1
- Gas Type : Natural Gas, Town Gas, LPG (gaseous), Biogas, Hydrogen, landfill gas, Clean Air
- Storage/Transport Temperature Range : -20 to +40 deg C
- Explosion Protection Marking : ATEX: II 2G Ex eb ob IIC T5 Gb; IECEx: Ex eb ob IIC T5 Gb
- Maximum Installation Height : 2000 m AMSL
- Ambient Temperature Range : VK, VK..H, VK..Z: -15 to +60 deg C|VK..X, VK..HX: -15 to +40 deg C
- Installation Orientation : Vertical upright or tilted (not upside down)
- Explosion-Proof Versions : VK..X, VK..HX (Zone 1 and 2, ATEX and IECEx compliant)
- Electrical Connections : Plug (EN 175301-803), M20 cable gland, terminal (2.5 mm²)
- Maintenance Interval : At least once a year; twice for biogas applications
- Inlet Pressure Range : Up to 8 bar depending on model
- Valve Body Material : Aluminum alloy (AlSi) or GGG 40 cast iron (flanged versions)
- Valve Plate Seal : Perbunan, Viton
- Enclosure Rating : IP54 (standard), IP65 (explosion-proof versions)
- Connection Type : Rp Internal Thread (ISO 7-1), Flange (ISO 7005, PN 16)
- Nominal Sizes : DN 40 to 250
- Mains Voltage : 24 VDC, 100 to 240 VAC, 50/60 Hz
- Actuator Type : Hydraulically actuated, closed when de-energized
- Safety Class : Class 1
- Product Type : Motorized valve for gas
- Opening Time : DN 40: 5 seconds; DN 50-65: 8 seconds; DN 80-100: 10 seconds; DN 125-200: 13 seconds; DN 250: -
- Closing Time : <1 seconds
- Duty Cycle : 1
- Approvals : CE (GAR, PED, EMC, LVD), UKCA, AGA, IECEx, ATEX, EAC
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