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Combustion 911
Supplying and Serving the Combustion Industry
an Olsträd Engineering Company

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Pressure Switch for Gas DG

Pressure Switch DG 150TG

Price:
Quantity:
  • For monitoring positive air and gas pressures, negative or differential air pressures
  • Adjusting Range: 12 - 60 ″WC (30 - 150 mbar)
  • Gold-plated contacts
  • Accurate, repeatable switching action with low hysteresis
  • Choice of mounting positions
  • One normally open and one normally closed contact in each switch
  • Automatic and manual reset models available
  • Compact construction, easy installation
  • Special models available for oxygen service and low voltage operation
  • FM and UL approved

Accessories

Model and Description Price Cart
DG/DL ACC 03
Pilot lamp set 110/120 V AC red
DG/DL ACC 04
Pilot lamp set 110/120 V AC blue
DG/DL ACC 05
LED set 24 V DC/AC red/green
DG/DL ACC 06
Connecting set DG..U, DG..T
DG/DL ACC 08
U-angle bracket DG, DL
DG/DL ACC 09
Replacement pressure switch cover (standard, no reset)

Applications

Pressure Switch for Gas DG..T Application For the control of the minimum gas inlet pressure.
Pressure Switch for Gas DG..T Application Negative pressure cut-out for gas (and air) and for low voltages with close position indicator.
Pressure Switch for Gas DG..T Application Electrical safety shut-off valve (SAV) with closed position indication of devices connected downstream.
Pressure Switch for Gas DG..T Application Differential pressure switch for monitoring of air filters.

Specifications

Electrical
Supply voltage: 30 - 240 Vac; 50/60 Hz
(Special "G" models available for voltages below 30 Vac)
Switch contact rating: 5 A resistive or 0.5 A inductive (cos φ = 0.6)
For "G" models, 0.1 A resistive or 0.05 A inductive (cos φ = 0.6)
Short-circuit protection: use 8 A quick-acting fuse
Screw terminals: Maximum wire gauge of 14 - 18 AWG wire
   
pressure switches
½″ NPT conduit connection.
¼″ NPT female connections (2) for pressure (high differential) side of switch.
⅛″ NPT female connection for suction (low differential) side of switch.
11/32″ (9 mm) diameter test hose fitting on pressure (high differential) side of switch.
   
Adjusting Range
DG 6T: 0.2 - 2.4 ″WC (0.6 - 6 mbar)
DG 10T: 0.4 - 4 ″WC (1 - 10 mbar)
DG 50T: 1 - 20 ″WC (2.5 - 50 mbar)
DG 150T: 12 - 60 ″WC (30 - 150 mbar)
DG 500T: 40 - 200 ″WC (100 - 500 mbar)
DG 10HT and DG 10NT: 0.4 - 4 ″WC (1 - 10 mbar)
DG 50HT and DG 50NT: 1 - 20 ″WC (2.5 - 50 mbar)
DG 150HT and DG 150NT: 12 - 60 ″WC (30 - 150 mbar)
DG 500HT and DG 500NT: 40 - 200 ″WC (100 - 500 mbar)
   
Hysteresis, max
DG 6T: 0.12 ″WC (0.3 mbar)
DG 10T: 0.16 ″WC (0.4 mbar)
DG 50T: 0.60 ″WC (1.5 mbar)
DG 150T: 1.60 ″WC (4.0 mbar)
DG 500T: 4.00 ″WC (10.0 mbar)
   
Differential between switching pressure and reset
DG 10HT and DG 10NT: 0.2 - 0.4 ″WC (0.4 - 1 mbar)
DG 50HT and DG 50NT: 0.2 - 0.8 ″WC (0.4 - 2 mbar)
DG 150HT and DG 150NT: 0.2 - 1.6 ″WC (0.4 - 4 mbar)
DG 500HT and DG 500NT: 1.6 - 4.0 ″WC (4.0 - 10 mbar)
   
Operating limits
Ambient and gas temperature
range:
-40° F to 140° F (-40° C to 60° C)
Maximum storage temperature: 158° F (70° C)
Maximum surge pressure: 30 psig (2 bar) for a duration < 15 minutes
   
Dimensions and Weights
Weight: DG 6 to DG 50 models: 0.6 lbs (0.3kg)
DG 150 and DG 500 models: 0.7 lbs (0.33kg)
Dimensions: 3 inches × 3 inches × 2.76 inches
   
Construction Materials
FMDG pressure switch covers: High quality injection-molded plastic.
Switch housings: Glass fiber-reinforced plastic and pressure die-cast aluminum alloy.
Diaphragms: Nitrile rubber
Enclosure: NEMA 3 (IP 54)

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  All Products
Locks off with Rising Pressure
Locks off with Falling Pressure
Gold Contacts
Accessories
DG 6T
Price:
Adjusting Range: 0.2 - 2.4 ″WC (0.5 - 6 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: No
DG 10T
Price:
Adjusting Range: 0.4 - 4 ″WC (1 - 10 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: No
DG 50T
Price:
Adjusting Range: 1 - 20 ″WC (2.5 - 50 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: No
DG 150T
Price:
Adjusting Range: 12 - 60 ″WC (30 - 150 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: No
DG 500T
Price:
Adjusting Range: 40 - 200 ″WC (100 - 500 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: No
DG 10HT
Price:
Adjusting Range: 0.4 - 4 ″WC (1 - 10 mbar); Locks off with Rising Pressure: Yes; Locks off with Falling Pressure: No
DG 50HT
Price:
Adjusting Range: 1 - 20 ″WC (2.5 - 50 mbar); Locks off with Rising Pressure: Yes; Locks off with Falling Pressure: No
DG 150HT
Price:
Adjusting Range: 12 - 60 ″WC (30 - 150 mbar); Locks off with Rising Pressure: Yes; Locks off with Falling Pressure: No
DG 500HT
Price:
Adjusting Range: 40 - 200 ″WC (100 - 500 mbar); Locks off with Rising Pressure: Yes; Locks off with Falling Pressure: No
DG 10NT
Price:
Adjusting Range: 0.4 - 4 ″WC (1 - 10 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: Yes
DG 50NT
Price:
Adjusting Range: 1 - 20 ″WC (2.5 - 50 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: Yes
DG 150NT
Price:
Adjusting Range: 12 - 60 ″WC (30 - 150 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: Yes
DG 500NT
Price:
Adjusting Range: 40 - 200 ″WC (100 - 500 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: Yes
DG 6TG
Price:
Adjusting Range: 0.2 - 2.4 ″WC (0.5 - 6 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: No; Gold-plated Contacts
DG 10TG
Price:
Adjusting Range: 0.4 - 4 ″WC (1 - 10 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: No; Gold-plated Contacts
DG 50TG
Price:
Adjusting Range: 1 - 20 ″WC (2.5 - 50 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: No; Gold-plated Contacts
DG 150TG
Price:
Adjusting Range: 12 - 60 ″WC (30 - 150 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: No; Gold-plated Contacts
DG 500TG
Price:
Adjusting Range: 40 - 200 ″WC (100 - 500 mbar); Locks off with Rising Pressure: No; Locks off with Falling Pressure: No; Gold-plated Contacts
DG/DL ACC 03
Price:
Pilot lamp set 110/120 V AC red
DG/DL ACC 04
Price:
Pilot lamp set 110/120 V AC green
DG/DL ACC 05
Price:
LED set 24 V DC/AC red/green
DG/DL ACC 06
Price:
Connecting set DG..U, DG..T
DG/DL ACC 08
Price:
U-angle bracket DG, DL
DG/DL ACC 09
Price:
Replacement pressure switch cover (standard, no reset)

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