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Gas pressure regulator FRU Dungs
- These pressure regulators FRU are circulation regulators with adjustable setpoint spring. They limit the output pressure of a booster to the set value (reponse pressure) when consumption fluctuates.
- The regulator complies with EN 88 and DIN 3380.
- Input pressure up to 150 mbar (15 kPa). Output range 2.5 ÷ 150 mbar.
- Sturdy, precise and sensitive regulation of input pressure (response pressure).
- Safety diaphragms.
- External pulse as standad.
- It does not contain any non-ferrous metals and is suitable for gases up to maximum 0.1% vol H2S dry. Suitable for gases of families 1, 2, 3 and other neutral gaseous media.
Sectional drawing FRU
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FRU | |||||||
---|---|---|---|---|---|---|---|
1 | Housing | 5 | Diaphragm disk | 8 | Breathing plug | ||
2 | Regulating cup | 6 | Working diaphragm | 9 | Setpoint spring | ||
3 | External pulse connection | 7 | Safety diaphragm | 10 | Adjustment device | ||
4 | Compensation diaphragm |
Technical specifications FRU pressure regulator
Regulator type | Code | DN / Rp | pmax (mbar) | pmin (mbar) | Working temperature (oC) |
---|---|---|---|---|---|
FRU 505 | 221928 | Rp 1/2 | 150 | 2.5 | -15 ÷ 70 |
FRU 507 | 221929 | Rp 3/4 | |||
FRU 510 | 169130 | Rp 1 | |||
FRU 515 | 178900 | Rp 1 1/2 | |||
FRU 520 | 178910 | Rp 2 | |||
FRU 5040 | 178930 | DN 40 | 150 | 2.5 | -15 ÷ 70 |
FRU 5050 | 178940 | DN 50 | |||
FRU 5065 | 178950 | DN 65 | |||
FRU 5080 | 160910 | DN 80 | |||
FRU 5100 | 178960 | DN 100 |
Dimensions pressure regulator FRU (mm)
Type | a | b | c | d | e | f | g | h | Weight (kg) |
---|---|---|---|---|---|---|---|---|---|
FRU 505 | 77 | 115 | 24 | 143 | G 1/4 | G 1/8 | G 1/8 | 225 | 0.60 |
FRU 507 | 100 | 130 | 28 | 165 | 245 | 1.00 | |||
FRU 510 | 110 | 145 | 33 | 190 | 310 | 1.20 | |||
FRU 515 | 150 | 195 | 40 | 250 | G 1/2 | G 1/4 | G 1/4 | 365 | 2.50 |
FRU 520 | 170 | 250 | 47 | 310 | 450 | 3.50 | |||
FRU 5040 | 200 | 195 | 65 | 280 | 395 | 3.50 | |||
FRU 5050 | 230 | 250 | 75 | 340 | 480 | 5.00 | |||
FRU 5065 | 290 | 285 | 95 | 405 | 590 | 7.60 | |||
FRU 5080 | 310 | 285 | 95 | 405 | 590 | 10.00 | |||
FRU 5100 | 350 | 350 | 105 | 495 | 760 | 16.00 |
Application example
The FRU gas pressure regulator constantly limits the pressure in a gas-consuming system. In the system, the gas supply pressure is increased to a higher pressure by
a gas blower (pressure increasing device). If the generated pressure exceeds the set response pressure, the FRU pressure regulator opens.
The output pressure of the pressure booster is relieved via the return line.
FRU spring selection
Tip arc | Brown | White | Orange | Blue (standard) | Red | Yellow | Black | Pink |
---|---|---|---|---|---|---|---|---|
Pressure range (mbar) | 2.5÷9 | 5÷13 | 5÷20 | 10÷30 | 25÷55 | 30÷70 | 60÷110 | 100÷150 |
FRU 505 | 229817 | 229818 | 229820 | 229821 | 229822 | 229823 | 229824 | 229825 |
FRU 507 | 229833 | 229834 | 229835 | 229836 | 229837 | 229838 | 229839 | 229840 |
FRU 510 | 229842 | 229843 | 229844 | 229845 | 229846 | 229847 | 229848 | 229849 |
FRU 515 | 229851 | 229852 | 229853 | 229854 | 229869 | 229870 | 229871 | 229872 |
FRU 520 | 229874 | 229875 | 229876 | 229877 | 229878 | 229879 | 229880 | 229881 |
FRU 5040 | 229851 | 229852 | 229853 | 229854 | 229869 | 229870 | 229871 | 229872 |
FRU 5050 | 229874 | 229875 | 229876 | 229877 | 229878 | 229879 | 229880 | 229881 |
FRU 5065 | 229883 | 229884 | 229885 | 229886 | 229887 | 229888 | 229889 | 229890 |
FRU 5080 | 229883 | 229884 | 229885 | 229886 | 229887 | 229888 | 229889 | 229890 |
FRU 5100 | 229892 | 229893 | 229894 | 229895 | 229896 | 229897 | 229898 | 229899 |
Adjustment of response pressure
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 FRU Dungs
- For more drawings or details access the operation manual.
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Prices pressure regulators
Code | Type | Prices without VAT |
---|---|---|
221928 | Gas pressure regulator FRU 505 | 0.00 |
221929 | Gas pressure regulator FRU 507 | 0.00 |
169130 | Gas pressure regulator FRU 510 | 0.00 |
178900 | Gas pressure regulator FRU 515 | 0.00 |
178910 | Gas pressure regulator FRU 520 | 0.00 |
178930 | Gas pressure regulator FRU 5040 | 0.00 |
178940 | Gas pressure regulator FRU 5050 | 0.00 |
178950 | Gas pressure regulator FRU 5065 | 0.00 |
160910 | Gas pressure regulator FRU 5080 | 0.00 |
178960 | Gas pressure regulator FRU 5100 | 0.00 |
In case the price is missing or for a list of discounts contact
us directly to receive an offer.