Karl Dungs FRG Proportionator Zero Governor

Karl Dungs FRG Proportionator Zero Governor

  • Max. Operating pressure: 7 PSI / 5 PSI
  • Nominal diameter: NPT 1/2 – NPT3
  • Approval: CSA Certified

Description

The Dungs pressure regulator, type FRG, has an adjustable setpoint spring and defined counterspring.  These proportionator/zero governor regulators are recommended for industrial and commercial heating applications.  All NPT sizes, and range from 1/2″ to 3″ for connection to your application.  Various outlet pressure spring selection options.

Proportionator Application:
Holds a constant gas/air ratio by varying gas flow to a gas burning piece of equipment in proportion to combustion air flow. Adjustable ratio for excess gas or air operation.

Zero Governor Application:
Controls fuel by reducing incoming gas pressure to zero or adjustable to slightly above or below atmospheric pressure.

Features:

  • Optional Low fire bypass for 1/2 in. NPT to 2 in. NPT models
  • Connection for air impulse line
  • Inlet and outlet 1/4 in. NPT test ports on each side
  • Factory installed vent limiter
  • Input Pressure Proportionator: 2 to 82 in. W.C. (5 to 200 mbar); Zero Governor: 2 to 20 in. W.C. (5 to 50 mbar)
  • Output Pressure Proportionator: 4 to 60 in. W.C. (10 to 150 mbar); Zero Governor: -2 to 2 in. W.C. (-5 to 5 mbar) – see spring selection.

Ask us for engineering or product support to size your regulator.
——————————————————————
DUNGS FRG MODELS:

226458 – Dungs FRG 705/6 Proportionator/Zero Governor, 1/2″ NPT
226459 – Dungs FRG 707/6 Proportionator/Zero Governor, 3/4″ NPT
226460 – Dungs FRG 710/6 Proportionator/Zero Governor, 1″ NPT
226461 – Dungs FRG 712/6 Proportionator/Zero Governor, 1 1/4″ NPT
226462 – Dungs FRG 715/6 Proportionator/Zero Governor, 1 1/2″ NPT
226463 – Dungs FRG 720/6 Proportionator/Zero Governor, 2″ NPT
226464 – Dungs FRG 725/6 Proportionator/Zero Governor, 2 1/2″ NPT
226465 – Dungs FRG 730/6 Proportionator/Zero Governor, 3″ NPT

Technical Documentation

FRG Ratio Regulator and Zero Governor