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Product Documentation:

FRNG 507 - Zero Pressure Regulator 3/4" NPT by Dungs

$335.13
Item Code: 220969

Spring-loaded gas-air pressure regulator with adjustable setpoint spring and defined counterspring. Internal tap of regulator output pressure, external pulse and blower pressure connections prepared. Suitable for controlling regulator output pressure via a pneumatic command variable.

FRNG 507 (220969)

  • 2 Rp
  • Refer to Sales Brochure for Specific Output Ranges
  • Repair Kit: 229658
  • Formerly: 209-065

Description

The DUNGS FRNG 5../10 proportionator/zero governor has an adjustable setpoint spring and

nonadjustable counter spring. The DUNGS FRNG 5../10 is recommended for industrial and

commercial heating applications. It is suitable for natural gas, propane, butane, air and other

inert gases.

Application (Proportionator)

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.

Application (Zero Governor)

Controls fuel by reducing incoming gas pressure to zero or adjustable to slightly above or

below atmospheric pressure.

Specifications Proportionator

Max. Operating Pressure

7 PSI (500 mbar)

Optimal Input Pressure Range

2 to 82 in. W.C. (5 mbar to 200 mbar)

Output Pressure Range

0 to 60 in. W.C. (10 mbar to 150 mbar)

Ambient Temperature Rating

+5 F to +160 F (-15 C to +70 C)

Specifications Zero Governor

Max. Operating Pressure

7 PSI (500 mbar)

Optimal Input Pressure Range

2 to 20 in. W.C. (5 mbar to 50 mbar)

Output Pressure Range

-1.2 to 2 in. W.C. (-5 mbar to 5 mbar)

Ambient Temperature Rating

+5 F to +160 F (-15 C to +70 C)

Aluminum body; Two upstream and downstream taps; air impulse line on top; Refer to selection guide for technical specifics, flow and pressure drop. Optional low fire bypass for 3/8” - 2” (225256).