Data sheet
High-performance precision pressure regulator, G 1/2", 0,05 to 7 bar
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FDR 03-7
Example illustration
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Application:
High performance precision pressure regulators are used in order to adjust an extremely accurate pressure - regardless of pre-pressure and flow performance. It is used for example for control and regulation units in process engineering, which has the highest pressure stability requirements.
Version:
Precision pressure reducer, reversible (with secondary relieving), (model series 2: collective relieving through 3/8"-borehole)
Materials:
Body: die-cast zinc Z410, diaphragms and seals: EPDM (model series 2: NBR)
Temperature range:
-10°C to max. +60°C (model series 2: -35°C to max. +60°C)
Input pressure:
max. 16 bar
Pressure gauge connection:
G 1/8" (model series 2: G 1/4")
Switch panel thread:
M 12x1 (series 2: M 20x1.5)
Own air consumption:
1.7 to 2 l/min
Control accuracy:
± 2.5 mbar
Media:
fine-filtered compressed air (5 µm) & neutral gases, oil-free
Flow:
900 l/min (model series 2: 6500 l/min), relief system: 200 l/min (model series 2: 800 l/min)
ATEX:
Operating material without its own potential source of ignition in accordance with Directive 2014/34/EU
Advantages:
•Automatic venting in case of overpressure on the secondary side (series 2: up to 800 l/min),
•High flow rate at constant pressure,
•Fine regulation of pressure independent of inlet pressure and flow rate,
•Series 2: can be used down to -35 °C!,
•Supplied exhaust air (G 3/8") for secondary venting (series 2)
•High flow rate at constant pressure,
•Fine regulation of pressure independent of inlet pressure and flow rate,
•Series 2: can be used down to -35 °C!,
•Supplied exhaust air (G 3/8") for secondary venting (series 2)
Warning:
This device is supplied without a pressure gauge. We recommend ordering a suitable pressure gauge separately.
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| Model series | Model series 2 |
| Thread | G 1/2" |
| Pressure regulation range [bar] | 0,05 - 7 |
| Mounting brackets | BW 30 |
| Temperature range [°C] | -35 to +60 |
Further information:
| {{ $t('shop.all.gewicht') }} | 1,4 kg / pcs |
| {{ $t('shop.all.gtin') }} | 4050571295141 |
| {{ $t('shop.display.artikel.zollwarennummer') }} | 84811099 |
| {{ $t('shop.display.artikel.rohskonform') }} | {{ $t('shop.all.ja') }} |
Figure
Drawing:
Drawing: Diagram FDR 03 (0,05 - 3 bar) / flow
Drawing: Diagram FDR 03 / venting
More information on this item and the process for ordering it can be found in our online shop https://www.landefeld.com under item number FDR 03-7.
Landefeld Druckluft und Hydraulik GmbH · Konrad-Zuse-Straße 1 · 34123 Kassel · Germany
All data are to be understood as non-binding reference values! We do not assume liability for any data selection not confirmed in writing. Unless otherwise specified, pressure values refer to liquids from Group II at +20°C.
Our products arid goods are generally only intended for industrial and commercial uses.
Our products arid goods are generally only intended for industrial and commercial uses.
As of: 20.12.2025