SBA (SBA2 = single spool). Adjustable built-in relief (factory 2000 psi). Built-in load checks for cylinder holding; select-fit honed spools for good metering. The CROSS SBA2 is an in-line monoblock directional control valve in a single-spool configuration rated for about 30 GPM and 2500 psi (SBA family).
It's offered in open-center, closed-center, and float variants, and includes load-holding checks and an adjustable internal relief for compact, reliable control of double-acting cylinders or reversible motors.