Recent Blogs
Single D Slide Valve Mechanism: How It Works, Parts, Lap and Lead Diagram
See how a D-slide valve alternates admission and exhaust through three passages. Compare selected eccentric radius, throw and opening-span dimensions.
Multiple-Port Piston Throttle Valve: Declared Port-Exposure Geometry
Explore a multiple-port piston throttle and calculate partial and full axial port exposure from piston travel, port count, pitch and width.
Gridiron Slide Valve: Port Opening Calculator | FIRGELLI
Compare gridiron and single-port opening displacement. Calculate travel saved for equal-length ports, with a schematic animation and worked area example.