Valvola di riduzione della pressione proporzionale 3DR16P-5X

The pilot operated three-way proportional pressure reducing valve 3DR16P-5X is a high-performance hydraulic control element. Huade’s proportional pressure reducing valve 3DR16P-5X is mainly used to reduce and limit system pressure to ensure that the hydraulic system can maintain a stable pressure level. 3DR16P-5X, where "3DR" represents the three-way pressure reducing valve series, "16" represents the size, "P" represents pressure control, and "5X" represents a configuration code. Huade’s 3DR16P-5X proportional valve can replace the same model offered by Rexroth.

Product parameter of Proportional Pressure Reducing Valve 3DR16P-5X

Product Feature And Application of Proportional Pressure Reducing Valve 3DR16P-5X

Features:

▶Valve for reducing (P to A) and limiting (A to T) a system

▶For subplate mounting

▶4 pressure ratings

▶4 adjustment elements, optional:

●Rotary knob

● Sleeve with hexagon and protective cap

● Lockable rotary knob with scale

Rotary knob with scale

Application:

Proportional pressure reducing valve 3DR16P-5X is suitable for hydraulic systems that require high-precision pressure control, such as injection molding machines, construction machinery, and high-precision manufacturing equipment.

Function and Section of Proportional Pressure Reducing Valve 3DR16P-5X

Pressure control valves of type 3DR are pilot operated 3-way pressure reducing valves with pressure relief function for the secondary circuit. They are used to reduce a system pressure.

The pressure reducing valve basically consists of main valve (1) with control spool (2) and pilot control valve (3) with pressure adjustment element (10).

In the starting position, the valve is open. Hydraulic fluid can flow from channel P to channel A without any restrictions.

The pressure in channel A is applied via bore (4) to the spool area opposite to compression spring (9). At the same time, pressure is applied via orifice (6) to the spring-loaded side of control spool (2) and via channel (5) to ball(7) in pilot control valve (3).

Depending on the setting of compression spring (11) pressure builds up upstream of ball (7) and in channel(5) and holds control spool (2) in the open position. Hydraulic fluid flows from channel P via control spool (2) to channel A until pressure builds up in channel A, which reaches a higher value than the pressure value set on compression spring (11) and lifts off ball (7).

Control spool (2) moves to the closed position.The required reduced pressure is reached when the pressure in channel A and the pressure value set on compression spring (11) are in

Balance.

When the pressure in channel A increases further due to external forces acting on the actuator, control spool (2) is pushed further against compression spring (9). This opens a connection between channel T and channel A via control land (8) on control spool (2). The amount of hydraulic fluid discharged to tank ensures that the pressure will no longer increase.

The pilot oil is always drained externally from spring chamber(12) via pilot line (13) at port Y. It must always be returned at zero pressure to tank.

Pressure gauge port(14) allows the reduced pressure in channel A to be checked.