The detent structure include 2 forms: Spring centred spool & without spring centred spool.
Spring centred spool have those several structures:
Detent in A
Detent in B
Detent in A & B
Detent in A,B and O
Without Spring return structure, it only provides AOB positioning function.
We are manufacturer of various types of Hydraulic valves, such as: Hydraulic Section Valve, Hydraulic Reversing Valve, Hydraulic Control Valve, Hydraulic Floating Valve, Flow Divider Valve, Hydraulic Distributor, Hydraulic Rotary Valve and so on.