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DUNGS FRSBV - Safety Pressure Relief Valves up to 5 bar - Pressure regulator
DungsPressure regulator

DUNGS FRSBV - Safety Pressure Relief Valves up to 5 bar

The spring loaded DUNGS High Pressure Safety Relief Valves FRSBV for relief pressure settings from 4,5 to 200 kPa.

SKU 3G-OTH-02953

Also listed as: FRSBVHIGHPRESSURE5BAR · FRSBV HIGH PRESSURE 5BAR

Brand
Dungs
Item
FRSBV - Safety Pressure Relief Valves up to 5 bar
Category
Pressure regulator
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Datasheet Content

[{"filename":"frsbv-high-pressure_datasheet_en_291569.pdf","text":"FRSBV\nPressure relief valves\n\n\n\n Type FRSBV pressure relief valves\n\n Safety pressure relief device with\n adjustable spring index value for\n releasing overpressure into the open air.\n\n In compliance with DIN 33821\n\n\n\n • Input pressure up to 20 bar (2 000 kPa)\n • Tolerates high flow rates\n • Internal pulse\n • Threaded connection 1\"\n\n\n\n\nFRSBV Ÿ Edition 07.2023 Ÿ 291 569 1 ... 16\n\fTable of contents FRSBV\n\n Applications\t\t\t\t\t\t3\n\n Approval\t\t\t\t\t\t3\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\t8\n\n Spring selection\t\t\t\t\t\t9-10\n Dimensions\t\t\t\t\t\t11\n\n Function\t\t \t\t\t\t12\n\n Section FRSBV\t\t\t\t\t\t12\n\n Device selection / flow tables\t\t\t\t 13-14\n\n Calculation of the gas type\t\t\t\t 15\n\n Contact data\t\t\t\t\t\t16\n\n\n\n\nFRSBV Ÿ Edition 07.2023 Ÿ 291 569 2 ... 16\n\fFRSBV Applications Approval\nThe FRSBV type is a pressure relief Pressure safety relief valve for gas\nvalve (SBV) with an adjustable EC type-examination certificate according to:\n burners and gas equipment.\nresponse pressure. Also used in gas supply and distribu-\nThe valve has an internal response tion systems. • EC Pressure Equipment Directive\npressure tap.\n It is suitable for gases of gas families\n 1, 2, 3 and other neutral gases.\n\n\n\n\nFRSBV Ÿ Edition 07.2023 Ÿ 291 569 3 ... 16\n\fTechnical Data FRSBV\n\n Safety pressure relief valve according to DIN 33821\n Type FRSBV 5010…\n\n Type of gas Family 1+2+3\n\n Nominal diameters Connecting threads according to BSP (ISO 228/1) or NPT (B1.20.1)\n Thread G1\" NPT 1\"\n\n Max. input pressure FRSBV 5010… 5 bar (500 kPa)\n\n Trigger range 45 mbar to 2 bar (4.5-200 kPa)\n\n Materials Housing: Aluminium Al 2521, Al 2011\n Diaphragm housing: Aluminium Al 2011\n Diaphragms: NBR according to EN 549\n\n Ambient temperature -20 °C to + 60 °C\n\n\n\n\nFRSBV Ÿ Edition 07.2023 Ÿ 291 569 4 ... 16\n\fTechnical Data FRSBV\n\n Safety pressure relief valve according to DIN 33821\n Type FRSBV 20010…\n\n Type of gas Family 1+2+3\n\n Nominal diameters Connecting threads according to BSP (ISO 228/1) or NPT (B1.20.1)\n Thread G1\" NPT 1\"\n\n Max. input pressure FRSBV 20010… 20 bar (2 000 kPa)\n\n Trigger range 200 mbar to 8 bar (20-800 kPa)\n\n Materials Housing: steel F-114 (FRSBV 200…)\n Diaphragm housing: steel F-114 (FRSBV 200…)\n Diaphragms: NBR according to EN 549\n\n Ambient temperature -20 °C to + 60 °C\n\n\n\n\nFRSBV Ÿ Edition 07.2023 Ÿ 291 569 5 ... 16\n\fPressure taps\n\n\n 1 FRSBV vent line connection,\n G¼ ISO 228\n\n\n\n\n 1\n 1\n\n\n\n\nFRSBV Ÿ Edition 07.2023 Ÿ 291 569 6 ... 16\n\fNomenclature\n\n\n Using the FRSBV 5010 HD FRSBV 50 10 HD NPT\n as an example\n\n\n Type Pressure relief valve\n\n\n MOP 50 … 5 bar\n 200 … 20 bar\n Nominal diameter 10 1\"\n Pressure range ND Low pressure\n HD High pressure\n\n Thread type With BSP thread\n NPT With NPT threads\n\n\n\n\nFRSBV Ÿ Edition 07.2023 Ÿ 291 569 7 ... 16\n\fAdjustment ranges\n\n\n\n Type Threaded Model Item number Closing Specific\n connection pressure [SG] adjustment range\n\n FRSBV 5010 ND G1\" ND 289263 SG 20 45-2 000 mbar\n\n FRSBV 20010 HD G1\" HD on request SG 20 200-8 000 mbar\n\n FRSBV 5010 ND NPT NPT 1\" ND 289268 SG 20 45-2 000 mbar\n\n FRSBV 20010 HD NPT NPT 1\" HD on request SG 20 200-8 000 mbar\n\n\n\n\nFRSBV Ÿ Edition 07.2023 Ÿ 291 569 8 ... 16\n\fSpring selection FRSBV 5010…\n\nThe response pressure results from Setpoint range for springs FRSBV 5010 …\nthe force that the movable parts exert\non the adjusting spring (2) installed. Spring colour Replacement Wire diameter Length Diameter Setpoint range [mbar]\n item number [mm] [mm] [mm]\nThe full response pressure range can ND\nbe covered by changing the adjusting Yellow 290942 1.3 60 20 45-65\nsprings. Black 290943 1.5 60 20 65-95\n Purple 290944 1.6 60 20 85-125\n Pink 290945 1.8 60 20 125-185\n White 290946 2.2 60 20 185-350\n Blue 290947 2.5 50 20 350-580\n Orange 290948 2.8 50 20 580-1 000\n Silver 290950 3.5 45 20 1 000-1 700\n Grey 290951 3.8 45 20 1 600-2 000\n 2\n\n\n\n\nFRSBV Ÿ Edition 07.2023 Ÿ 291 569 9 ... 16\n\fSpring selection FRSBV 20010…\n\nThe response pressure results from Setpoint range for springs FRSBV 10010 / 20010 …\nthe force that the movable parts exert\n Spring colour Replacement Wire diameter Length Diameter Setpoint range [mbar]\non the adjusting spring (3) installed.\n item number [mm] [mm] [mm]\nThe full response pressure range can HD\nbe covered by changing the adjusting Green 290952 3.5 110 35 200-1 000\nsprings. Red 290953 4.0 100 35 250-1 500\n White 290954 4.5 100 35 300-2 000\n Yellow 290955 5.0 100 35 500-3 000\n Blue 290956 5.5 100 35 750-4 000\n Black 290957 6.0 100 35 1 000-8 000\n\n\n\n\n 3\n\n\n\n\nFRSBV Ÿ Edition 07.2023 Ÿ 291 569 10 ... 16\n\f Dimensions FRSBV\n\n Type Item p max. Thread Dimensions Weight\n B number [bar / kPa] [mm] [kg]\n B\n BSP NPT A B C D E F\n F FRSBV 5010 ND 289263 289268 5 / 500 1\" 100 112 22 127 227 G¼\" 0.89\n\n FRSBV 20010 HD on request 20 / 2 000 1\" 112 60 28…

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Dungs Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The spring loaded DUNGS High Pressure Safety Relief Valves FRSBV for relief pressure settings from 4,5 to 200 kPa.

Frequently Asked Questions

What is the DUNGS FRSBV safety pressure relief valve used for?

The DUNGS FRSBV is a spring-loaded safety pressure relief valve designed to release overpressure into open air. It is used on gas burners, gas equipment, and in gas supply or distribution systems for gas families 1, 2, and 3, complying with DIN 33821.

What are the specifications of the DUNGS FRSBV high-pressure relief valve?

The DUNGS FRSBV 5010 model has a maximum input pressure of 5 bar (500 kPa) and a trigger range of 45 mbar to 2 bar (4.5–200 kPa). It features a 1" threaded connection (BSP or NPT), an aluminium housing, and NBR diaphragms per EN 549. Ambient temperature range is -20 °C to +60 °C.

Where to buy DUNGS FRSBV safety pressure relief valves in Singapore?

3G Electric supplies the DUNGS FRSBV safety pressure relief valve to customers in Singapore. We handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this model.

How to install a DUNGS FRSBV pressure relief valve?

Install the DUNGS FRSBV with the vent line connected to the G¼ ISO 228 port. Ensure the valve is oriented so the internal pulse tap senses upstream pressure. The spring index is adjustable for the desired relief set point. Always follow local gas safety codes and the manufacturer's datasheet.

Used in

Common applications for Dungs
Industrial steam boilers — MB-ZRDLE MultiBloc on modulating gas-fired plant
Hospital and hotel plant rooms — MB-D series for two-stage commercial burners
Food-industry ovens and dryers — DMV butterfly valves on high-turndown modulating lines
Petrochemical gas-train skid assemblies — FRS / FRSBV regulators with GW pressure switches
Retrofit drop-in replacements for older Dungs MB assemblies on existing Weishaupt / Riello burners

Dungs Products

3G Electric supplies Dungs pressure regulator. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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