Precision-engineered Proportional Servo Valve for industrial automation applications. High-performance D820 series delivers exceptional flow control with ±1% accuracy. CNC-machined aluminum housing ensures durability in harsh environments. Direct-operated design provides fast response time under 10ms. Compatible with hydraulic systems up to 5000 PSI. Features hardened steel spool and bronze bushings for extended service life. Ideal for injection molding machines, metal forming presses, and aerospace test rigs. OEM-approved replacement for Eaton Vickers D664 and D672 series. Factory-calibrated with test certification included. Bulk purchase discounts available for industrial distributors. Global shipping with same-day dispatch from multiple warehouses.