Supplied by Huafilter with direct factory sourcing from Beijing Huade Hydraulic—whose manufacturing foundations stem from long-term technical cooperation and joint ventures with Rexroth since 1979. Explosion-proof proportional directional control valves engineered for stepless actuator acceleration, deceleration, and positioning in explosive atmospheres. Drop-in replacement for Rexroth 4WRZ, 4WRA 6-2X, and 4WRA 10-2X explosion-proof series. Combines certified flameproof proportional solenoids with precision-ground metering spools to deliver precise, spark-free electro-hydraulic control across offshore drilling and petrochemical equipment.
