shutoff valves
VQ400/800 Series
Class A Combination Valves
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These combination valves are available in two body sizes:
- Small model: VQ420, VQ425
- Large model: VQ440, VQ450All models are connected to suitable sized gas pipes using flange kits which can be ordered separately in several sizes
Environmental Conditions
- Ambient Temperature Range
- -15 to +60 deg C
- Enclosure Rating
- IP54 (PG11 connection); IP65 (DIN plug connection)
Electrical Specifications
- Working Frequency
- 1 cycle per minute
- Power Consumption
- Varies by model and voltage Watt
- Operational Voltage Range
- 85 to 110% of rated voltage
Dimensions & Size Specifications
- Pipe Size
- VQ420M: 1/2, 3/4 in, VQ425M: 1 in, VQ440M: 1-1/4, 1-1/2 in, VQ450M: 2 in
Actuation, Valve & Motion Control Specifications
- Opening Time
- V1: <1 seconds
- V2: <1 seconds (fast) or adjustable 1 to 30 seconds (slow)
- Closing Time
- <1 seconds for both valves
Installation & Mounting Specifications
- Mounting Position
- Vertical (coils on top); ±90 deg from vertical allowed
Overview
- Models
- VQ420M, VQ425M (small body)
- VQ440M, VQ450M (large body)
Fuel, Gas & Media Specifications
- Gas Type
- Gaseous fuels (Natural Gas, LP gas, etc.)
Operating Limits, Durability & Lifecycle
- Designed Lifetime
- 10 years (per EN 126 and Afecor guidelines)
Connections & Interfaces
- Connection Type
- Flanged connection
Standards & Certifications
- Approvals
- CE/EU Declaration of Conformity
Applications & Compatibility
- Applications
- Gas Power Burners, Atmospheric Boilers, Melting Furnaces, Incinerators, And Other Gas‑Consuming Appliances
Environmental Conditions
- Ambient Temperature Range
- -15 to +60 deg C
- Enclosure Rating
- IP54 (PG11 connection); IP65 (DIN plug connection)
Electrical Specifications
- Working Frequency
- 1 cycle per minute
- Power Consumption
- Varies by model and voltage Watt
- Operational Voltage Range
- 85 to 110% of rated voltage
Dimensions & Size Specifications
- Pipe Size
- VQ420M: 1/2, 3/4 in, VQ425M: 1 in, VQ440M: 1-1/4, 1-1/2 in, VQ450M: 2 in
Actuation, Valve & Motion Control Specifications
- Opening Time
- V1: <1 seconds
- V2: <1 seconds (fast) or adjustable 1 to 30 seconds (slow)
- Closing Time
- <1 seconds for both valves
Installation & Mounting Specifications
- Mounting Position
- Vertical (coils on top); ±90 deg from vertical allowed
Overview
- Models
- VQ420M, VQ425M (small body)
- VQ440M, VQ450M (large body)
Fuel, Gas & Media Specifications
- Gas Type
- Gaseous fuels (Natural Gas, LP gas, etc.)
Operating Limits, Durability & Lifecycle
- Designed Lifetime
- 10 years (per EN 126 and Afecor guidelines)
Connections & Interfaces
- Connection Type
- Flanged connection
Standards & Certifications
- Approvals
- CE/EU Declaration of Conformity
Applications & Compatibility
- Applications
- Gas Power Burners, Atmospheric Boilers, Melting Furnaces, Incinerators, And Other Gas‑Consuming Appliances
- Ambient Temperature Range : -15 to +60 deg C
- Working Frequency : 1 cycle per minute
- Power Consumption : Varies by model and voltage Watt
- Pipe Size : VQ420M: 1/2, 3/4 in, VQ425M: 1 in, VQ440M: 1-1/4, 1-1/2 in, VQ450M: 2 in
- Operational Voltage Range : 85 to 110% of rated voltage
- Opening Time : V1: <1 seconds|V2: <1 seconds (fast) or adjustable 1 to 30 seconds (slow)
- Mounting Position : Vertical (coils on top); ±90 deg from vertical allowed
- Models : VQ420M, VQ425M (small body)|VQ440M, VQ450M (large body)
- Gas Type : Gaseous fuels (Natural Gas, LP gas, etc.)
- Enclosure Rating : IP54 (PG11 connection); IP65 (DIN plug connection)
- Designed Lifetime : 10 years (per EN 126 and Afecor guidelines)
- Connection Type : Flanged connection
- Closing Time : <1 seconds for both valves
- Approvals : CE/EU Declaration of Conformity
- Applications : Gas Power Burners, Atmospheric Boilers, Melting Furnaces, Incinerators, And Other Gas‑Consuming Appliances
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