All Product Dungs
FRI – Pressure Regulator for DMV
The FRI/6 balancing type pressure regulator combines a pressure regulator and a 50 micron gas filter in one housing. Various combinations are possible using the FRI/6 with the most of the DMV shutoff valves for a compact, modular system:
- Stand-alone pressure regulator and gas filter with threaded flanges, or direct mount to DMV sizes 701, 702 and 703 series safety shutoff valves.
- Regulator output pressure monitored by direct mounting an A2 type pressure switch. Additional ports to sense inlet and outlet pressure are also located on the threaded flanges.
- Heavy duty diaphragm construction for durability and strength.
- Steady, precise and instantaneous regulation of the outlet pressure
- Lock-up type regulator (see page 2 and 3 for details).
- Factory installed vent limiter. Review applicable codes for vent line requirements.
FRG – Ratio Regulator & Zero Governor
The FRG ratio regulator/zero governor has an adjustable setpoint spring and nonadjustable counterspring.
- Optional Low fire bypass for ½ in. NPT to 2 in. NPT models. Ideal for low flow or for high turndown applications.
- Steady, precise and instantaneous regulation of the outlet pressure.
- Connection for air impulse line.
- Inlet and outlet ¼ in. NPT test ports on each side.
- Factory installed vent limiter. Review applicable codes for vent line requirements.
FRM – Medium Pressure Regulator DN 25-DN 50
The DUNGS Medium Pressure Regulator FRM are spring loaded pressure regulator for constant outlet pressure in a range from 3 to 400 kPa. With inlet pressure compensation. Optionally with Slam shut valve incorporated
Medium pressure regulator Type FRM Direct acting pressure regulator with adjustable setpoint springs and modular mounted safety shutoff valve (SAV) In compliance with EN 334 and EN 14382
- Inlet pressures up to 25 bar (2 500 kPa)
- High flow rate
- Stable, accurate and sensitive regulation of the outlet pressure
- Admission pressure compensation diaphragm for a high regulation accuracy
- External impulse
- Maintenance-friendly
- Flange connection according to DN 25 – DN 50
FRN OH – Zero Pressure Regulator
The DUNGS FRN OH zero pressure regulators are spring-loaded gas pressure regulators for pressure regulation with a pressure ratio of -0,2 to 0,3 kPa. FRN OH – Zero is a high-performance industrial burner designed to deliver ultra-clean, stable, and efficient combustion. It features advanced low-NOx technology that significantly reduces exhaust emissions, making it environmentally friendly and compliant with modern industrial regulations. With precise air–fuel control, FRN OH – Zero produces a smooth and consistent flame across a wide operating range
- Type FRN OH
- Max Operation : 50 Kpa
- Type : FRH 5040 – 5150
- Size : DN 40 – DN 150
FRNG – Zero/Proportional Pressure Regulator
The DUNGS Zero/Proportional Pressure Regulator FRNG are spring loaded gas pressure regulator for proportional pressure control with an offset from 0,25 to 20 kPa and pressure proportion up to 15 kPa. Also suitable for zero pressure regulation function from -0,3 to 0,5kPa
- Input pressures up to 200 mbar (20 kPa) for zero pressure applications
- Input pressures up to 200 mbar (20 kPa) for proportional pressure applications
- Bypass prepared, Rp 3/8 to Rp 2 – Sturdy, precise and sensitive regulation of regulator output pressure
- Inlet pressure compensation diaphragms
- Safety diaphragms
- Internal pulse for regulator output pressure as standard, external pulse connection prepared
FRS – Gas Pressure Regulator
Gas pressure regulator for gas burners and gas equipment. It does not contain any non-ferrous metals, suitable for gases of up to max. 0.1 vol.% H2 S, dry. Suitable for gases of families 1, 2, 3 and other neutral gaseous media.
The DUNGS pressure regulator, type FRS, has an adjustable setpoint spring. The pressure regulator complies with EN 88-1 and DIN 3380:
- Input pressures up to 500 mbar (50 kPa)
- High flow rate
- Sturdy, precise and sensitive regulation of regulator output pressure
- Inlet pressure compensation diaphragms
- Safety diaphragms
- Rp 3/8 to Rp 2 thread connection
- DN 40 to DN 150 flange connection
