PMDVB25-45s Double acting manual pump

PMDVB25-45s is double-acting manual hydraulic pump with two optional displacements (PM25 / PM45), equipped with built-in 3-position 4-way directional valve; the valve defaults to O-type middle position, Y-type median is available on request. Reciprocate the handle to drive plunger for bidirectional oil suction & discharge, converting manual mechanical energy into hydraulic power; integrated directional valve directly controls double-acting cylinder’s extend, hold and retract actions without extra external valve components.Core Advantages✅ Two Large Displacement Optional, High Working Efficiency

Available with PM25 and PM45 two large-flow specifications; bigger single-stroke oil delivery reduces handle strokes for pressure build-up, ideal for fast lifting and heavy-load hydraulic operations.

✅ Double-Acting Structure, Continuous Oil Output

Double-acting plunger design realizes oil feeding on both pull and push stroke of handle, uninterrupted hydraulic oil supply to improve lifting speed significantly compared with single-acting pumps.

✅ Integrated 3/4 Directional Valve (O/Y Median Optional)

Built-in three-position four-way valve, standard O-type center function with optional Y-type; directly realize forward & reverse control for double-acting cylinders, simplify pipeline layout and cut accessory cost.

✅ Ergonomic Force Optimization Design

Two independent pressure-handle curves cover full 0~600BAR working range; refer to orange optimal intensity benchmark to configure matched handle length for each model to reduce hand fatigue.

✅ Flange Base for Stable Mounting

Integrated bottom flange with pre-set fixing holes for direct bolt fixing on equipment base, compact structure for customized hydraulic unit assembly.Application ScenariosPerfectly matched with double-acting hydraulic cylinders, widely used for auto maintenance lifting equipment, engineering machinery overhaul, industrial portable hydraulic tools and customized hydraulic systems requiring bidirectional cylinder control & fast oil supply.