BU series
The BU Series for hydraulic oil is connected to the installation as a bypass, making use of the available pressure with a maximum up to 343 bar. The system ensures an effective filtering of all dirt particles, moisture and oxidation products (resins) which usually cannot be removed with standard filters. The BU series is available in aluminium (BU-30, 50 & 100) and stainless steel 304 (BU-200 and BU-300). The BU-100, 200 and 300 are also available for use with Water Glycol.
- Increases reliability and deployability of machine
- Extends the life of the oil
- Extends the life of current filters
- Reduces maintenance costs
- Reduces machine idleness
- Relieves the environment
+ Technical specifications BU series

Model | BU-30 | BU-50 | BU-100 | BU-200 | BU-300 |
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Article Nr. | TR-19450 | TR-19650 | TR-19530 | TR-19200 | TR-19320 |
Pressure | Max. pressure: 6 bar. Max. pressure flowcontrol (IN) 343 bar. Internal safety opens at 4.5 bar | ||||
Flow | ~1,0 l/m | ~1,5 l/m | ~2,0 l/m | ~4,0 l/m | ~6,0 l/m |
In/out | 1/4’’ x 1/4’’ |
1/4’’ x 1/4’’ |
1/4’’ x 3/8’’ |
1/2’’ x 1/2’’ |
1/2’’ x 1/2’’ |
Element Type | BU-30: 30 series, type M - E - X BU-50: 50 series, type M - E - X BU-100, 200 & 300: 100 series, type M - E - X - D - WE |
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Nr. of elements | 1 | 1 | 1 | 2 | 3 | Weight (kg) | 2,5 | 4,0 | 6,5 | 8,0 | 12,0 |
Dim. w x h (cm) | 14 x 29 | 18 x 31 | 23 x 32 | 23 x 60 | 23 x 74 |
Material | BU-30, 50 &100: Aluminium. BU-200, 300 Stainless steel (304) | ||||
Contents | Package contains first (set of) element(s), pressure gauge and mounting bracket |
+ Technical specifications BU WG series for Glycol

Model | BU-100WG | BU-200WG | BU-300WG | ||
---|---|---|---|---|---|
Article Nr. | TR-19550 | TR-19100 | TR-19700 | ||
Pressure | Max. pressure: 6 bar. Max. pressure flowcontrol (IN) 343 bar. Internal safety opens at 4.5 bar | ||||
Flow | ~2,0 l/m | ~4,0 l/m | ~6,0 l/m | ||
In/out | 1/4’’ x 3/8’’ |
1/2’’ x 1/2’’ |
1/2’’ x 1/2’’ |
||
Element Type | 100 series, type WG - DWG | ||||
Nr. of elements | 1 | 2 | 3 | Weight (kg) | 6,5 | 8,0 | 12,0 |
Dim. w x h (cm) | 23 x 32 | 23 x 60 | 23 x 74 | ||
Material | BU-100: Treated aluminium. BU-200 & 300: Stainless steel (304) | ||||
Contents | Package contains first (set of) element(s), pressure gauge and mounting bracket |
Download our "BU" brochure available on this page for more information, contact us by phone: +31-742428109, via email: This email address is being protected from spambots. You need JavaScript enabled to view it., or use the chat button in the right-lower corner to start a conversation immediately.