>> Pressure regulators >> FRNG
FRNG Dungs zero pressure regulator, proportional and compressed air-controlled pressure regulator
- These pressure regulators FRNG have an adjustable setpoint spring and defined counterspring.
- Input pressures up to 50 mbar (5 kPa) for zero pressure applications.
- Input pressures up to 200 mbar (20kPa) for proportional pressure applications.
- Bypass prepared: Rp 3/8 to Rp 2.
- Sturdy, precise and sensitive regulation of regular output pressure.
- Inlet pressure compensation diaphragms.
- Safety diaphragms.
- Internal pulse for regulator output pressure as standard, external pulse connection prepared.
- Connection for blower pressure as standard.
- Suitabile for gases of families 1, 2, 3 and other neutral gaseous media. Does not contain any non-ferrous metals, suitable for gases up to max. 0.1 vol % H2S dry.
Sectional drawings FRNG
For the images that aren't clear move the mouse over them to zoom.
| FRNG | |||||||
|---|---|---|---|---|---|---|---|
| 1 | Housing | 5 | Diaphragm disk | 9 | Setpoint spring | ||
| 2 | Regulating cup | 6 | Working diaphragm | 10 | Counterspring | ||
| 3 | Pulse tap, internal | 7 | Safety diaphragm | 11 | Adjustment device | ||
| 4 | Compensation diaphragm | 8 | Breathing plug | ||||
| FRNG | |||||||
|---|---|---|---|---|---|---|---|
| 1 | Housing | 6 | Diaphragm disk | 11 | Adjustment device | ||
| 2 | Regulating cup | 7 | Working diaphragm | 12 | Counterspring | ||
| 3 | Pulse tap, internal | 8 | Safety diaphragm | 13 | Option DN 125, DN 150 Measurement opening with screw plug G 1/8 |
||
| 4 | Compensation diaphragm | 9 | Breathing plug | ||||
| 5 | External pulse | 10 | Setpoint spring | ||||
Technical specifications FRNG pressure regulator
| Regulator type | Code | DN/Rp | pmax - Zero governor (mbar) | Range - Zero pressure regulator (mbar) | pmax Air/gas ratio control 1:1 (mbar) | Range - Air/gas ratio control (mbar) |
|---|---|---|---|---|---|---|
| FRNG 503 | 220967 | Rp 3/8 | 50 | -3÷5 | 200 | -20÷100 |
| FRNG 505 | 220968 | Rp 1/2 | ||||
| FRNG 507 | 220969 | Rp 3/4 | ||||
| FRNG 510 | 220970 | Rp 1 | ||||
| FRNG 515 | 209064 | Rp 1 1/2 | ||||
| FRNG 520 | 209065 | Rp 2 | ||||
| FRNG 5040 | 159350 | DN 40 | 50 | -3÷5 | 200 | -20÷100 |
| FRNG 5050 | 209067 | DN 50 | ||||
| FRNG 5065 | 209068 | DN 65 | ||||
| FRNG 5080 | 209069 | DN 80 | ||||
| FRNG 5100 | 214422 | DN 100 | ||||
| FRNG 5125 | 220758 | DN 125 | ||||
| FRNG 5150 | 224212 | DN 150 | ||||
| FRNG 5125 M | 241762 | DN 125 | ||||
| FRNG 5150 M | 241764 | DN 150 |
| Regulator type | Code | DN/Rp | pmax - Controlled by air pressure (mbar) | Range pmax - controlled by air pressure (mbar) | Working temp. (0C) |
|---|---|---|---|---|---|
| FRNG 503 | 220967 | Rp 3/8 | 500 | 350 | -15÷70 |
| FRNG 505 | 220968 | Rp 1/2 | |||
| FRNG 507 | 220969 | Rp 3/4 | |||
| FRNG 510 | 220970 | Rp 1 | |||
| FRNG 515 | 209064 | Rp 1 1/2 | |||
| FRNG 520 | 209065 | Rp 2 | |||
| FRNG 5040 | 159350 | DN 40 | 500 | 350 | -15÷70 |
| FRNG 5050 | 209067 | DN 50 | |||
| FRNG 5065 | 209068 | DN 65 | |||
| FRNG 5080 | 209069 | DN 80 | |||
| FRNG 5100 | 214422 | DN 100 | |||
| FRNG 5125 | 220758 | DN 125 | |||
| FRNG 5150 | 224212 | DN 150 | |||
| FRNG 5125 M | 241762 | DN 125 | |||
| FRNG 5150 M | 241764 | DN 150 |
Dimensions pressure regulator FRNG (mm)
| Regulator type | a | b | c | d | e | f | g | h | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| FRNG 503 | 77 | 115 | 24 | 143 | G 1/4 | G 1/4 | G 1/4 | 225 | 0.60 |
| FRNG 505 | 77 | 115 | 24 | 143 | 225 | 0.60 | |||
| FRNG 507 | 100 | 130 | 28 | 165 | 245 | 1.00 | |||
| FRNG 510 | 110 | 145 | 33 | 190 | 310 | 1.20 | |||
| FRNG 515 | 150 | 195 | 40 | 250 | G 1/2 | G 1/4 | G 1/4 | 365 | 2.50 |
| FRNG 520 | 170 | 250 | 47 | 310 | 450 | 3.50 | |||
| FRNG 5040 | 200 | 195 | 65 | 280 | 395 | 3.50 | |||
| FRNG 5050 | 230 | 250 | 75 | 340 | 480 | 5.00 | |||
| FRNG 5065 | 290 | 285 | 95 | 405 | 590 | 7.60 | |||
| FRNG 5080 | 310 | 285 | 95 | 405 | 590 | 10.00 | |||
| FRNG 5100 | 350 | 350 | 105 | 495 | 760 | 16.00 | |||
| FRNG 5125 | 400 | 400 | 135 | 635 | 1000 | 28.00 | |||
| FRNG 5150 | 480 | 480 | 160 | 780 | 1180 | 38.00 |
Application - Zero pressure regulator
The counterspring counteracts the setting spring and the weight force of the moving parts.
Depending on the pretension of the setting spring and the installation position, the force of the counterspring is compensated.
Application - Air / gas ratio control
The setting spring can generate an offset.
If the ratio is adjusted to 1:1 during maximum fan pressure pL, a gas excess (gas advance) results in partial load.
If the ratio is adjusted to 1:1 in a partial load point, an air excess results at full load (air advance).
The deviation of the original straight line (100%) is approximately +/- 5%.
Application - Controlled by air pressure
In connection with a selected setting spring, the regulator outlet pressure can be controlled depending on a fan pressure (air pressure). The pretension of the setting spring is added
to the fan pressure. The maximum regulator output pressure is: p2 max = 350 mbar.
The connection of the fan pressure line must withstand the occurring stresses and must be permanent. The pressurised air must be dust-free and dry and must not retain any contamination.
The maximum fan pressure is: pL max = 150 mbar.
FRNG spring selection
| Spring colour | Brown | White | Orange | Blue | Red | Yellow | Black | Pink | Grey |
|---|---|---|---|---|---|---|---|---|---|
| Pressure range (mbar) | 2.5÷9 | 5÷13 | 5÷20 | 10÷30 | 25÷55 | 30÷70 | 60÷110 | 100÷150 | 140÷200 |
| FRNG 503 | 229817 | 229818 | 229820 | 229821 | 229822 | 229823 | 229824 | 229825 | 229826 |
| FRNG 505 | 229817 | 229818 | 229820 | 229821 | 229822 | 229823 | 229824 | 229825 | 229826 |
| FRNG 507 | 229833 | 229834 | 229835 | 229836 | 229837 | 229838 | 229839 | 229840 | 229841 |
| FRNG 510 | 229842 | 229843 | 229844 | 229845 | 229846 | 229847 | 229848 | 229849 | 229850 |
| FRNG 515 | 229851 | 229852 | 229853 | 229854 | 229869 | 229870 | 229871 | 229872 | 229873 |
| FRNG 520 | 229874 | 229875 | 229876 | 229877 | 229878 | 229879 | 229880 | 229881 | 229882 |
| FRNG 5040 | 229851 | 229852 | 229853 | 229854 | 229869 | 229870 | 229871 | 229872 | 229873 |
| FRNG 5050 | 229874 | 229875 | 229876 | 229877 | 229878 | 229879 | 229880 | 229881 | 229882 |
| FRNG 5065 | 229883 | 229884 | 229885 | 229886 | 229887 | 229888 | 229889 | 229890 | 229891 |
| FRNG 5080 | 229883 | 229884 | 229885 | 229886 | 229887 | 229888 | 229889 | 229890 | 229891 |
| FRNG 5100 | 229892 | 229893 | 229894 | 229895 | 229896 | 229897 | 229898 | 229899 | 229900 |
| FRNG 5125 | 229901 | 229902 | 229903 | 229904 | 229905 | 229906 | 229907 | 229908 | 243416 |
| FRNG 5150 | 229909 | 229910 | 229911 | 229912 | 229913 | 229914 | 229915 | 229916 | 243417 |
The standard version is equipped with a blue spring.
Setting the response pressure
Factory setting: Standard spring p2: 2.5 - 9 mbar. Sealing force of counterspring in closed position: standard offset 5 mbar.
1) Unscrew protective cap A
2) Adjustment (+) - Setting spindle B "turn clockwise" = increasing response pressure (setpoint) OR
3) Adjustment (-) - Setting spindle B "turn counter-clockwise" = reducing response pressure (setpoint)
4) Check setpoint
5) Screw on protective cap A
6) Attach lead seal
Flow diagram FRNG Dungs
- For more drawings or details access the operation manual.
For the images that aren't clear move the mouse over them to zoom.
Prices pressure regulators
| Code | Type | Prices without VAT |
|---|---|---|
| 220967 | Gas pressure regulator FRNG 503 | 0.00 |
| 220968 | Gas pressure regulator FRNG 505 | 0.00 |
| 220969 | Gas pressure regulator FRNG 507 | 0.00 |
| 220970 | Gas pressure regulator FRNG 510 | 0.00 |
| 209064 | Gas pressure regulator FRNG 515 | 0.00 |
| 209065 | Gas pressure regulator FRNG 520 | 0.00 |
| 159350 | Gas pressure regulator FRNG 5040 | 0.00 |
| 209067 | Gas pressure regulator FRNG 5050 | 0.00 |
| 209068 | Gas pressure regulator FRNG 5065 | 0.00 |
| 209069 | Gas pressure regulator FRNG 5080 | 0.00 |
| 214422 | Gas pressure regulator FRNG 5100 | 0.00 |
| 220758 | Gas pressure regulator FRNG 5125 | 0.00 |
| 224212 | Gas pressure regulator FRNG 5150 | 0.00 |
| 241762 | Gas pressure regulator FRNG 5125 M | 0.00 |
| 241764 | Gas pressure regulator FRNG 5150 M | 0.00 |
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