48 www.stauff.com/10/en/#48 C Catalogue 10 § Edition 01/2024 Particle and Desiccant Breathers Characteristics Accessories Adaptor Plate § for Size 093 and 096: AP-1 § for Size 121 and 122: AP-2 Please see page 52 for details. Function When a reservoir or gearbox breathes, air containing moisture is ingested into the system. Temperature fluctuations will cause this moisture to condense which can speed up the oxidation of the fluid and lead to damage in the system. Using SVDB series Desiccant Breathers, the incoming air first passes through a coarse filter, then a Drying Agent and finally an PU washer to filter out rough dirt particles. Features § Available in 5 different sizes § Diameter of 63 mm, 91 mm or 121 mm § Drying Agent und Air Breather Element is not replaceable § One piece plastic housing § BSP Female connection thread on plastic housing § Filter Fineness of the PUR filter disc: 100 μm Operating temperature range: -40°C ... +90 °C / -40°F ... +194 °F Description The SVDB series from STAUFF is a simplified design for less demanding applications. In contrast to the SDB and SDBL series, Desiccant Breathers of the SVDB series must be replaced when the service life of the Complete Unit is reached. Available in five different housing lengths between 96,5 mm and 286,5 mm and have a diameter of 63 mm, 91 mm or 121 mm depending on the selected length. The UV-resistant one piece plastic housing is designed with a female BSP thread on the bottom. The Particle and Desiccant Breather can be installed with a adaptor. A change in the color of the desiccant material indicates that it needs to be replaced (from red to orange in the standard version). Saturated Drying Agent is not replaceable, so that the entire unit is disposed of when it reaches the end of its service life. Pressure Drop Flow Curves Adaptors § Several thread combinations available Please see page 50 for details. Valve Unit with Reservoir Pressurisation (0.35 bar) § for Size 121 and 122: PSU-P Please see page 51 for details. Valve Unit with Check Valves § for Size 121 and 122: PSU-QE Please see page 51 for details. Oil Demister Insert § for Size 093 and 096: PSU-OD-090 § for Size 121 and 122: PSU-OD-120 Please see page 53 for details. Desiccant Breather (Simplified Design) Type SVDB 0 20 40 60 Q in l/min 0,10 0,08 0,06 0,04 0,02 0 p in bar 0 0.35 1.06 1.77 Q in cfm 1.45 0 1.16 0 0 .78 0 .58 0 0 .29 0 p in PSI 1.74 30 0.71 50 1.41 10 0,12 2.12 SVDB-061 out/into the tank 0 Q in l/min 0,25 0,20 0,15 0,10 0,05 0 p in bar 0 Q in cfm 3.63 0 2.90 0 0 2.18 0 1.45 0 0 .73 0 p in PSI 4.35 0,30 600 1200 1800 10.59 31.78 52.97 900 21.19 1500 42.38 300 63.57 SVDB-093 into the tank SVDB-093 out the tank SVDB-096 into the tank SVDB-096 out the tank 0,10 0,08 0,06 0,04 0,02 0 p in bar 1.45 0 1.16 0 0 .78 0 .58 0 0 .29 0 p in PSI 1.74 0,12 0 Q in l/min 0 Q in cfm 600 1200 1800 10.59 31.78 52.97 900 21.19 1500 42.38 300 63.57 SVDB-121 into the tank SVDB-121 out the tank SVDB-122 into the tank
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