The flow divider Hydac ST1 Series is a spool valve for pressure-independent flow rate distribution in fix ratio. In reverse direction the valve becomes a flow combiner. Various flow ranges with various translations are available.
- Can be used for differential locks in drive applications
- Excellent dividing and combining accuracy
- Synchronizing flow in both operating modes
- Wide flow range down to 25% of nominal flow rating
- Compact design
- Exposed surfaces zinc-nickel plated for increased corrosion protection (1.000 h Salt spray test)
|Operating Pressure||max. 350 bar|
|Nominal Flow .max||45 l/min||150 l/min||60 l/min|
|Inlet flow||7.6 l/min||max. 90 l/min||20 l/min (type 20)|
|15.2 l/min||max. 115 l/min||60 l/min (type 60)|
|22.8 l/min||max. 150 l/min|
|Dividing accuracy||up to 10% of inlet flow per partial flow|
|Media operating temperature range||min. -30 °C to max. +100 °C|
|Ambient temperature range||min. -30 °C to max. +100 °C|
|Operating fluid||Hydraulic oil to DIN 51524 Part 1, 2 and 3|
|Viscosity range||min. 7.4 mm²/s to max. 420 mm²/s|
|Filtration||Class 21/19/16 to ISO 4406 or cleaner|
|MTTFd||150 – 1200 years, according to DIN EN ISO 13849-1|
|Spool / Piston||hardened and ground steel|
|FKM (optional, media temperature range -20 °C to +120 °C)|
|Weight||0.122 kg||0.45 kg||0.27 kg|
ST10-01 and ST16-01 Type
The flow divider is a spring-loaded pressure compensated spool type valve. It divides a flow in two and keeps both flows constant. The division is made according to the specified ratio – from port 3 to ports 2 and 4.
As a flow combiner it combines two partial flows together – from ports 2 and 4 to port 3.
Port 1 is not used.
The flow divider is a spool type valve which divides a flow in two. The division is made according to the specified ratio – from port 2 to ports 1 and 3. As a flow combiner it combines two partial flows together – from ports 3 and 1 to port 2.