Recent Blogs
Hydraulic Valve: Spool and Bore Diameter Calculator | FIRGELLI
Calculate nominal bore diameter from spool diameter and stated diametral clearance. Suitable tolerance, leakage and cylinder drift are not calculated.
Poppet Valve: Prescribed Lift and Curtain-Area Geometry
Poppet valve mechanism explained — how the disc-and-seat sealing geometry controls flow in engines, hydraulics, and pneumatics. Sizing formula and worked example.
Four-Way Cock: Port Routing and Cv Comparison | FIRGELLI
Explore four-port routing and compare liquid pressure drop for two Cv values. Supply, valve ratings and complete circuit performance remain separate.