DUNGS FRM-NOC - Medium Pressure Regulator

[{"filename":"frm-noc_datasheet_en_290842.pdf","text":"3G-OTH-02946\nMedium Pressure Regulator\n\n\n 3G-OTH-02946 DN 50 UHD 3G-OTH-02946 DN 40 HD\n Medium Pressure Regulator 3G-OTH-02946\n\n Direct acting pressure regulator without inlet pressure\n balancing with adjustable setpoint spring and\n modularly attachable safety shut-off valve (SAV).\n\n In compliance with EN 334 and EN 14382\n\n\n\n • Input pressures up to 10 bar (1 000 kPa)\n • Rapid response to changes in flows\n • 4 to 6 different seat diameters available for each size\n • Regulating cup without inlet pressure balancing\n • Internal pulse (optional: external pulse)\n 3G-OTH-02946 DN 40 MD • Easy maintenance\n • Flange connection DN 25 - DN 50 / threaded connection 1\"-2\"\n • For applications with constant input pressure Pu\n\n\n 3G-OTH-02946 DN 25 HD\n\n\n\n\nFRM-NOC\n 3G-OTH-02946ŸŸEdition\n Edition09.2024\n 09.2024ŸŸ290\n 290842\n 842 1 ... 28\n\fTable of contents 3G-OTH-02946\n Applications\t\t\t\t\t\t 3\n\n Approval\t\t\t\t\t\t 3\n\n Technical data\t\t\t\t\t\t4+5\n\n Pressure taps\t\t\t\t\t\t6\n\n Nomenclature\t\t\t\t\t\t7\n\n Adjustment ranges\t\t\t\t\t 8-11\n\n Regulator spring selection\t\t\t\t12+15\n\n SAV spring selection\t\t \t\t\t 16+17\n\n Dimensions\t\t\t\t\t\t18-21\n\n Function\t\t\t\t\t\t22-24\n\n Sectional drawing 3G-OTH-02946/SAV\t\t\t 22-24\n\n Device selection/flow tables\t\t\t\t 25-27\n\n Contact\t\t\t\t\t\t\t28\n\n\n\n\nFRM-NOC Ÿ Edition 09.2024 Ÿ 290 842 2 ... 28\n\fFRM-NOC Applications Approval\nDirect acting (spring-loaded) For systems that require rapid\npressure regulator without inlet EC type-examination certificate according to:\n response to changes in flows\npressure balancing with adjusta- (industrial gas burners and gas • EC Pressure Equipment Directive\nble setpoint spring for controlling burning appliances).\nthe regulator output pressure.\nRegulator output pressure inter- Suitable for gases of gas families 1, 2, 3\nnal tap (optional: external tap). and other neutral gaseous media.\n\n\n\n\nFRM-NOC Ÿ Edition 09.2024 Ÿ 290 842 3 ... 28\n\fTechnical Data 3G-OTH-02946 Medium pressure regulator according to EN 334\n Model DS (differential strength range)\n\n Type of gas Family 1+2+3 (e.g. manufactured gas (town gas), commercial grade natural gas and\n commercial grade LPG gases in the vaporized phase).\n\n Nominal diameters of flanges Connecting flanges PN 25 according to EN 1092-1 or ANSI Class 150 per B16.5\n DN 25 40 50\t\t NPS 1\" 1.5\" 2\"\n\n Nominal diameters of threads Connecting thread in accordance (ISO7/1) or NPT (B1.20.1)\n Rp 1\" 1.5\" 2\" NPT 1\" 1.5\" 2\"\n\n Max. input pressure 10 bar (1 000 kPa / 145 PSI)\n\n Output pressure range 20 - 4 000 mbar (2 - 400 kPa) / 8 - 1 600 \"W.C. (0.3 - 58 PSI)\n\n Minimum inlet pressure (ND) 40 mbar (4 kPa) / 16 \"W.C. (0.6 PSI)\n\n Minimum inlet pressure (MD) 160 mbar (16 kPa) / 64 \"W.C. (2.3 PSI)\n\n Minimum inlet pressure (HD) 550 mbar (55 kPa) / 220 \"W.C. (8 PSI)\n\n Minimum inlet pressure (UHD) 1 250 mbar (125 kPa) / 502 \"W.C. (18 PSI)\n\n Control quality up to AC 5 (see Adjustment ranges on page 8-11)\n\n Closing pressure group up to SG 10 (see Adjustment ranges on page 8-11)\n\n Failure mode (diaphram rupture) Fail-open\n\n\n\nFRM-NOC Ÿ Edition 09.2024 Ÿ 290 842 4 ... 28\n\f Materials Regulator housing: Cast iron GJS 400-15\n Diaphragm housing: Aluminium/steel plate (UHD)\n Diaphragms:\t\t NBR\n\n Ambient temperature -20 °C to + 60 °C / -4 °F to + 140 °F\n\n\n\n\nTechnical Data SAV Safety shut-off valve according to EN 14382\n\n Model DS (differential strength range)\n\n Response time <2s\n\n Lower adjustment range Wdu 10 mbar to 3 000 mbar (1-300 kPa) / 4 - 1 205 \"W.C. (0.3 - 43.5 PSI)\n\n Upper adjustment range Wdo 60 mbar to 5 000 mbar (6-500 kPa)/ 24 - 2 007 \"W.C. (0.9 - 72.5 PSI)\n\n Materials Main body housing: Cast iron GJS 400-15\n Diaphragm housing: Aluminium\n Diaphragms:\t\t NBR\nFRM-NOC Ÿ Edition 09.2024 Ÿ 290 842 5 ... 28\n\fPressure taps\n\n\n 1 Regulator vent line connection,\n G¼ ISO 228\n G½ ISO 228 (2\", DN 40, DN 50 ND, MD)\n\n 2 Connection for external pulse (optional)\n regulator, Ermeto screw connection\n GE 12 - ¼ for tubes 12x1.5\n 1\n 3 Connection for external pulse SAV,\n Ermeto screw connection\n GE 12 - ¼ for tubes 12x1.5\n\n 2 4 Vent line connection SAV,\n G¼ ISO 228\n\n\n\n\n 3\n 4\n\n\n\n\nFRM-NOC Ÿ Edition 09.2024 Ÿ 290 842 6 ... 28\n\fNomenclature\n\n Example 3G-OTH-02946 100025 ND / SAV ND 100 025 ND SAV ND\n Type Spring-loaded medium pressure regulator\n Maximum operating pressure 100 … 10 000 mbar (1 000 kPa)\n MOP 4 018 \"W.C. (145 PSI)\n Nominal diameter 10 1\"\n 15 11/2\"\n 20 2\"\n 025 DN 25\n 040 DN 40\n 050 DN 50\n Outlet pressure ranges ND Low pressure\n MD Medium pressure\n HD High pressure\n\n UHD Ultra high pressure\n Safety device SAV Integrated safety cut-off valve\n Pressure range, trip pressure ND Low pressure\n MD Medium pressure\n HD High pressure\n UHD Ultra high pressure\n Type of thread/flange with Standard Rp or PN-25\n ANSI with flanges ANSI Class 150\n NPT with threads NPT\n\n\nFRM-NOC Ÿ Edition 09.2024 Ÿ 290 842 7 ... 28\n\fAdjustment ranges\n\n Type Connec- Ver- Accu- Closing Outlet pressure Monitoring de- Monitoring over-\n tion sion racy pressure range Wd pression SAV pressure SAV\n class* class*\n [AC] [SG] Wdu Wdo\n\n…