Spools
Spools
Gervasoni hydraulic spools distribute, divert, or shut off fluid flow within valves and solenoid valves, connecting or isolating internal passages through alternating axial sliding. Treated and ground using steel and special high-corrosion-resistance steels, they are machined according to the geometries, tolerances, and roughness defined in each customer drawing to ensure a stable fit with the sleeve or valve body. The dynamic response of the entire valve depends on the precision of this sliding movement: a principle that guides every phase of Gervasoni's manufacturing.
Raw materials
- Steels
- Special high corrosion-resistant steels
- Special alloys to customer specifications
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Hydraulic spool
Process consisting of turning, heat treatment, and final grinding to achieve roundness < 0.0010 mm, roughness 0.2 max, cylindricity < 0.0025 mm, runout < 0.05 mm, and perpendicularity < 0.025 mm.
Spools
Treated and ground spools for hydraulic solenoid valves.