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Proportionator/Zero Governor
Brand: Dungs
Model No: 226460
For Product: For Furnace.
Size:
Version:
Units in Stock: 1
Location:
Weight: 2.7kg
SKU No.:
Ratio Regulator Zero Governor -226460 NPT 1″ FRG/6 Series
The FRG ratio regulator/zero governor has an adjustable setpoint spring and nonadjustable counterspring.
– Optional Low fire bypass for ½ in. NPT to 2 in. NPT models. Ideal for low flow or for high turndown applications.
– Steady, precise and instantaneous regulation of the outlet pressure.
– Connection for air impulse line.
– Inlet and outlet ¼ in. NPT test ports on each side.
– Factory installed vent limiter. Review applicable codes for vent line requirements.
- Max. operating pressure: 7 PSI (500 mbar) Factory Rating; 5 PSI (350mbar) CSA Certified
- Max. body pressure: 15 PSI (1000 mbar)
Optimal inlet pressure range
- Ratio regulator = 3 to 82 in.W.C. (7 to 200 mbar)
- Zero Governor = 3 to 20 in.W.C. (7 to 50 mbar) with 10:1 turndown
- Zero Governor = 3 to 82 in.W.C. (7 to 200 mbar) with 3:1 turndown
Output pressure range
- Ratio regulator output = 0 to 60 in.W.C. (0 mbar to 150 mbar)
- Zero Governor output= -2 to 2 in.W.C. (-5 mbar to 5 mbar)
Materials in contact with gas
- Housing: Aluminium
- Seals and diaphragms: NRB
Ambient temperature +5°F to +160 °F for up to 7 PSI for regulating behavior (+/- 10% of setpoint).
-40 °F to +160 °F: Diaphragms are suitable for the low temperature, but there may be out of range regulating behavior.
CSA Certified for -40 °F to +160 °F for up to 5 PSI.
- Installation position Regulator dome vertically upright or horizontally.
- Test ports / Pilot gas connections ¼ in. NPT on both sides of the inlet section and ¼ in. NPT on both sides of the outlet section.Taps/connections only on one side when low fire bypass is used.
- Low fire Bypass (Optional) Field mountable low fire bypass: ½ in. NPT to 2 in. NPT on either side of
housing
Vent line connection / air impulse line connection / vent limiter
- The vent line connection/air impulse line connection is G ¼“ for FRG‘s up
to 1“ NPT, and it is G ½“ for FRG‘s 1 ¼ to 3“ NPT. A G thread to NPT thread
field mountable adapter is available. - For gas/air ratio applications at pressure ratio of approximately 1:1, use the
existing connection as pressure connection for air impulse line / blower
pressure, and at low fire, the air impulse line pressure shall be between 0.2
to 1.0 in WC. - The FRG/6 also has a factory installed vent limiting device, which limits the
escape of gas to less than 0.5 CFH @ 5 PSI in case atmospheric diaphragm
ruptures. Venting required unless otherwise accepted by the authority having
jurisdication.
Hysterisis +/- 10%
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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