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Gas pressure regulator FRU Dungs

Pressure regulator FRU
  • 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.

 

Gas pressure regulators FRU Rp Gas pressure regulator FRU DN Gas pressure regulator FRU group


Sectional drawing FRU

Sectional drawing FRU 1 Sectional drawing FRU 2 Sectional drawing FRU 3
For the images that aren't clear move the mouse over them to zoom.

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)

dimensions FRU

 

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

Application FRU
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

Setpoint adjustment FRU
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

Flow diagram FRU
- 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
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.