Datasheet Content
[{"filename":"fru_datasheet_en_214745.pdf","text":"Pressure regulator\n FRU\n Circulation regulator\n\n 4.12\n\n\n\n\n Technical description Application\n The DUNGS pressure regulator, type The DUNGS pressure regulator, type\n FRU, is a circulation regulator with ad- FRU, limits the output pressure of a\n justable setpoint spring. The pressure booster to the set value (response pres-\n regulator complies with EN 88-1. sure) when consumption fluctuates. It\n does not contain any non-ferrous met-\n - Input pressures up to 150 mbar (15 kPa) als and is suitable for gases up to max.\n - High flow rate 0.1 vol.% H2S, dry. Suitable for gases\n - Sturdy, precise and sensitive regu- of families 1, 2, 3 and other neutral\n\n\n\n\n Printed in Germany • Edition 06.19 • Nr. 214 745\n lation of regulator input pressure gaseous media.\n (response pressure)\n - Inlet pressure compensation dia- Approval\n phragms EC type testing certificate as per:\n - Safety diaphragms • EC-Gas Appliances Regulation\n - External pulse as standard\n - Rp 1/2 - Rp 2 threaded connection FRU ...\t\t CE-0123CU1023\n - DN 40 - DN 100 flange connection\n Approvals in other important gas con-\n suming countries.\n1…4\n\fFRU Spring-loaded pressure regulator fitted with adjustable setpoint spring. Prepared for external pulse of\n regulator input pressure (blower output pressure).\n Suitable for limiting the regulator input pressure for blower-supported gas equipment in the range above\n atmospheric pressure.\n\nSpecifications\n\nNominal diameters DN\t\t\t\t 40 50 65 80 100\nPipe thread as per ISO 7/1 Rp 1/2 3/4 1 11/2 2\nFlange Connection flange (PN 16) as per DIN EN 1092-1\n\nMax. operating pressure up to 500 mbar (50 kPa)\n\nPressure regulator Pressure regulator as per EN 88-1, Class A, Group 2\n\nInput pressure range up to 150 mbar (15 kPa)\n\nResponse pressure range 5 mbar (0.5 kPa) to 150 mbar (15 kPa) as a factor of adjustable setpoint spring\n\nMaterials of gas-conveying parts Housing: aluminium, steel\n Seals and diaphragms: NBR\n\nAmbient temperature -15 °C to +70 °C\n\nInstallation position Regulator dome from vertically upright to lying horizontally\n\nMeasuring/ignition gas connections G 1/4 ISO 228 on both sides in inlet section\n\nPulse connection External, prepared for connection of response pressure\n\nBlow-off line Blow-off line need not be routed, safety diaphragms are installed\n\nSpring selection The desired response pressure is provided by the force of the installed ad-\n justable spring. The pressure regulator is equipped with a blue spring (No. 4)\n as standard. If other pressure ranges need to be covered, select the spring\n required as specified in the table below.\n\n\nGuiding range in mbar 5 - 9 5 - 13 5 - 20 10 - 30 25 - 55 30 - 70 60 - 110 100 - 150\nSpring colour Spring 1 Spring 2 Spring 3 Spring 4 Spring 5 Spring 6 Spring 7 Spring 8\nNominal diameter brown withe orange blue red yellow black pink\nRp/DN Standard\nRp 1/2 229 817 229 818 229 820 229 821 229 822 229 823 229 824 229 825\nRp 3/4 229 833 229 834 229 835 229 836 229 837 229 838 229 839 229 840\nRp 1 229 842 229 843 229 844 229 845 229 846 229 847 229 848 229 849\nRp 1 1/2 229 851 229 852 229 853 229 854 229 869 229 870 229 871 229 872\nRp 2 229 874 229 875 229 876 229 877 229 878 229 879 229 880 229 881\nDN 65, 80 229 883 229 884 229 885 229 886 229 887 229 888 229 889 229 890\nDN 100 229 892 229 893 229 894 229 895 229 896 229 897 229 898 229 899\n\nPressure taps\n\n1 Breathing plug\n\n2 Connection for external pulse G 1/4\n ISO 228 screw plug on both sides\n\n3 G 1/8 or G 1/4 ISO 228 screw\n plug in inlet section on both sides\n (see type summary)\n\n\n\n\n 2…4\n\f Dimensions [mm]\n\n\n\n\n Type Order No. pmax. Dimensions [mm] Weight\n [mbar] Rp / DN a b c d e f g h [kg]\n\n FRU 505 221 928 500 Rp 1/2 77 115 24 143 G 1/4 G 1/8 G 1/8 225 0.60\n FRU 507 221 929 500 Rp 3/4 100 130 28 165 G 1/4 G 1/8 G 1/8 245 1.00\n FRU 510 169 130 500 Rp 1 110 145 33 190 G 1/4 G 1/8 G 1/8 310 1.20\n FRU 515 178 900 500 Rp 1 1/2 150 195 40 250 G 1/2 G 1/4 G 1/4 365 2.50\n FRU 520 178 910 500 Rp 2 170 250 47 310 G 1/2 G 1/4 G 1/4 450 3.50\n\n FRU 5040 178 930 500 DN 40 200 195 75 280 G 1/2 G 1/4 G 1/4 395 3.50\n FRU 5050 178 940 500 DN 50 230 250 82.5 340 G 1/2 G 1/4 G 1/4 480 5.00\n FRU 5065 178 950 500 DN 65 290 285 92.5 405 G 1/2 G 1/4 G 1/4 590 7.50\n FRU 5080 160 910 500 DN 80 310 285 100 405 G 1/2 G 1/4 G 1/4 590 10.00\n FRU 5100 178 960 500 DN 100 350 350 110 495 G 1/2 G 1/4 G 1/4 760 16.00\n\n\n\n Application example\n FRU circulation regulator in gas\n pressure booster system\n\n\n\n\n 5d 5d\n\n The FRU gas pressure regulator by a gas blower (pressure increasing The output pressure of the pressure\n constantly limits the pressure in a device). booster is relieved via the return\n gas-consuming system. If the generated pressure exceeds the line.\n In the system, the gas supply pres- set response pressure, the FRU pres-\n sure is increased to a higher pressure sure regulator opens.\n\n\n Pulse line between pressure Connect pulse line in inlet sec- Do not close breathing plug.\n regulator and blower outlet tion to protect gas equipment Connection to ambient pres-\n must not be lockable. Pulse line against pressure increase. sure must exist.\n must be made of PN 1 steel (min.\n DN 6). Keep pulse line short and\n route safely to prevent deformation\n and cracks.\n\n\n3…4\n\f Pressure regulator\n FRU\n Circulation regulator\n\n\n\n\n Flow diagram\n\n\n\n\n Rp 1/2 Rp 3/4 Rp 1 DN 40 DN 50 DN 65 DN 80 DN 100\n\n\n\n 100\n 90\n 80\n 70\n 60 Recommended operating range\n 50\n 40\n\n 30\n\n 20\n\n\n\n 10\n 9\n 8\n 7\n 6\n\n\n\n ∆p [mbar]\n 5\n 4\n\n 3\n\n\n 2 Basis + 15 °C, 1013 mbar, trocken\n Based on + 15 °C, 1013 mbar, dry\n Base + 15 °C, 1013 mbar, sec\n Base + 15 °C, 1013 mbar, secco\n 1,0\n\n\n\n 1 2 4 6 8 10 20 40 60 80 100 200 400 600 800 1000 2000 4000\n\n Vn [m /h] Luft / Air / Aria dv = 1,00\n 3\n\n\n\n\n 1 2 4 6 8 10 20 40 60 80 100 200 400 600 800 1000 2000 4000\n\n Vn [m /h] Erdgas/Natural gas/Gaz Naturel/Gas metano dv = 0,65\n 3\n\n\n\n\nWe reserve the right to make any changes in the interest of technical progress.\n Head Offices and Factory Postal address\n Karl Dungs GmbH & Co. KG\t\t Karl Dungs GmbH & Co. KG\n Karl-Dungs-Platz 1\t\t\t Postfach 12 29\n D-73660 Urbach, Germany D-73602 Schorndorf, Germany\n Telephone +49 7181-804-0 e-mail info@dungs.com\n Fax +49 7181-804-166…
