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shutoff valves

VQ400/800 Series

Class A Combination Valves

Overview
The VQ400M Series class “A” safety combination valves are used for control and regulation of gaseous fluids in gas power burners, atmospheric gas boilers, melting furnaces, incinerators and other gas-consuming appliances.The VQ400M offers flexibility to mount accessories like valve position indicators, pressure indication switches, vent valves or bypass valves at several positions on the gas valve, whenever, wherever.

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
Specifications

Overview

  • Models
    • VQ420M, VQ425M (small body)
    • VQ440M, VQ450M (large body)

Electrical Specifications

  • Operational Voltage Range
    • 85 to 110% of rated voltage
  • Working Frequency
    • 1 cycle per minute

Environmental Conditions

  • Ambient Temperature Range
    • -15 to +60 deg C
  • Enclosure Rating
    • IP54 (PG11 connection); IP65 (DIN plug connection)

Installation & Mounting Specifications

  • Mounting Position
    • Vertical (coils on top); ±90 deg from vertical allowed

Operating Limits, Durability & Lifecycle

  • Designed Lifetime
    • 10 years (per EN 126 and Afecor guidelines)

Connections & Interfaces

  • Connection Type
    • Flanged connection

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

Applications & Compatibility

  • Applications
    • Gas Power Burners, Atmospheric Boilers, Melting Furnaces, Incinerators, And Other Gas‑Consuming Appliances

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

Standards & Certifications

  • Approvals
    • CE/EU Declaration of Conformity

Fuel, Gas & Media Specifications

  • Gas Type
    • Gaseous fuels (Natural Gas, LP gas, etc.)

Overview

  • Models
    • VQ420M, VQ425M (small body)
    • VQ440M, VQ450M (large body)

Electrical Specifications

  • Operational Voltage Range
    • 85 to 110% of rated voltage
  • Working Frequency
    • 1 cycle per minute

Environmental Conditions

  • Ambient Temperature Range
    • -15 to +60 deg C
  • Enclosure Rating
    • IP54 (PG11 connection); IP65 (DIN plug connection)

Installation & Mounting Specifications

  • Mounting Position
    • Vertical (coils on top); ±90 deg from vertical allowed

Operating Limits, Durability & Lifecycle

  • Designed Lifetime
    • 10 years (per EN 126 and Afecor guidelines)

Connections & Interfaces

  • Connection Type
    • Flanged connection

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

Applications & Compatibility

  • Applications
    • Gas Power Burners, Atmospheric Boilers, Melting Furnaces, Incinerators, And Other Gas‑Consuming Appliances

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

Standards & Certifications

  • Approvals
    • CE/EU Declaration of Conformity

Fuel, Gas & Media Specifications

  • Gas Type
    • Gaseous fuels (Natural Gas, LP gas, etc.)
  • Models : VQ420M, VQ425M (small body)|VQ440M, VQ450M (large body)
  • Operational Voltage Range : 85 to 110% of rated voltage
  • Ambient Temperature Range : -15 to +60 deg C
  • Working Frequency : 1 cycle per minute
  • Mounting Position : Vertical (coils on top); ±90 deg from vertical allowed
  • Designed Lifetime : 10 years (per EN 126 and Afecor guidelines)
  • Enclosure Rating : IP54 (PG11 connection); IP65 (DIN plug connection)
  • Connection Type : Flanged connection
  • Opening Time : V1: <1 seconds|V2: <1 seconds (fast) or adjustable 1 to 30 seconds (slow)
  • Closing Time : <1 seconds for both valves
  • Applications : Gas Power Burners, Atmospheric Boilers, Melting Furnaces, Incinerators, And Other Gas‑Consuming Appliances
  • Pipe Size : VQ420M: 1/2, 3/4 in, VQ425M: 1 in, VQ440M: 1-1/4, 1-1/2 in, VQ450M: 2 in
  • Approvals : CE/EU Declaration of Conformity
  • Gas Type : Gaseous fuels (Natural Gas, LP gas, etc.)
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324916Q
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324916Q
VQ425 230VAC W/FLGS w/CONN
324917Q
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324917Q
VQ425 110VAC W/FLGS + w/CONN
324918Q
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