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Marshall W Nelson and Associates Inc
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Marshall W Nelson and Associates IncMarshall W Nelson and Associates Inc
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Gas Pressure Switches

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Antunes Model A Double Gas Pressure Switch

Antunes Model A Double Gas Pressure Switch

  • Rugged die-cast aluminum construction
  • Mounts horizontally without leveling
  • Custom design per OEM specifications available
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Antunes Model A Single Gas Pressure Switch

Antunes Model A Single Gas Pressure Switch

  • Rugged die-cast aluminum construction
  • Mounts horizontally without leveling
  • Custom design per OEM specifications available
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Antunes Model D Gas Pressure Switch

Antunes Model D Gas Pressure Switch

  • Rugged die-cast aluminum construction
  • Mounts horizontally without leveling
  • Custom design per OEM specifications available
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Antunes Model G Gas Pressure Switch

Antunes Model G Gas Pressure Switch

  • Compact, ventless design
  • Adjustable set points
  • Ambient temperature range: -40°F to 140°F
  • Mounts to any modular valve body
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Antunes Model H Gas Pressure Switch

Antunes Model H Gas Pressure Switch

  • Easily visible ON-OFF indicator
  • Max. Surge Pressure: 35 PSI
  • Mounts horizontally without leveling
  • Custom design per OEM specifications available
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Versa Plus Automatic

Antunes Versa Plus Gas Pressure Switch

  • Ventless design, Adjustable gas pressure settings
  • Manual or automatic reset operation
  • Ambient temperature range: 5°F to 180°F
  • Mounts to any modular valve body
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Dungs G-A2 Automatic Gas Pressure Switch

Dungs G A2 Series Gas Switches

  • Field adjustable
  • Automatic & Manual Reset
  • Mounts directly to Dungs DMV, FRI and Flanges products
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Dungs G-A4 Gas Pressure Switch Automatic

Dungs G A4 Series Gas Switches

  • Field adjustable
  • Automatic & Manual Reset
  • Pipe Mount
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Honeywell C6097A 2110 Pressure Switch

Honeywell C6097 Gas Pressure Switches

  • Two versions available: stand alone and flange mounted
  • C6097A2110 operating temperature range 1.0 … 10 mbar
  • C6097A2210 operating temperature range 2.5 … 50 mbar
  • Ambient temperature range 5° to 140°F
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Honeywell Kromschroder DG Compact Gas Pressure Switch

Honeywell Kromschroder DG Compact Gas Pressure Switch

  • Little space required thanks to compact dimensions
  • Max. inlet pressure 600 mbar (8.5 psig)
  • Approvals: CE, FM and UL Listed
  • Direct Mount to ValVario Valve
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Kromschroder DG..T Auto Reset

Honeywell Kromschroder DG Gas Pressure Switch

  • Monitoring of gas and air pressures (positive, negative and differential pressures)
  • Many variations available
  • Approvals: UL, CE and FM
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Siemens QP Series Gas Pressure Switch

Siemens QP Series Gas Pressure Switches

  • Automatic and manual reset models
  • Adjustable pressure range from 1 to 112 inches water column (wc)
  • Surge protected up to 15 psi
  • Approvals: UL Listed, FM Approved, CE, EAC and RoHS
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Products
  • Gas Burners  (65)
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    • Pressure Switches  (20)
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  • Instrumentation  (75)
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  • Propane/LPG Equipment  (16)
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    • Packaged Systems  (3)
    • Vaporizers  (9)
  • Standard Gas Valve Trains  (2)
  • Standard Control Panels  (1)
  • Boilers  (2)

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