W6-spool: improved W-spool
– crossover all ports are closed (to stop)
– then decompress at center, open 2% A to T and B to T
W8-spool: improved W1-spool, like W6 but 2:1 flow area
Q2-spool: for injection molding cylinders
Caterpillar Hydraulic
W6-spool: improved W-spool
– crossover all ports are closed (to stop)
– then decompress at center, open 2% A to T and B to T
W8-spool: improved W1-spool, like W6 but 2:1 flow area
Q2-spool: for injection molding cylinders