1 Year Warranty
Description
REXROTH RD52.1 1-4B 160-F-W1-FW: Directional Control Valve, Solenoid Operated
High-Performance, Modular 4/3 Closed-Center Valve for Industrial Hydraulics
The REXROTH RD52.1 1-4B 160-F-W1-FW is a precision-engineered, direct-operated 4-way, 3-position directional control valve. It is a core component within the Bosch Rexroth modular valve system, designed for building compact and efficient hydraulic control blocks. This specific model features a closed-center spool configuration, making it ideal for systems with fixed displacement pumps or requiring precise neutral-position control.
Product Overview
This valve serves as the primary switching element in a hydraulic circuit, controlling the start, stop, and direction of flow to actuators (cylinders or motors). Its modular “sandwich” design allows it to be mounted between a subplate and other valve functions (like pressure controls or check valves), creating a highly integrated and space-saving manifold. The “FW” variant indicates a specific coil configuration and connector style for global use.
Core Features & Benefits
-
Modular Sandwich Design: Enables the creation of custom, multi-function hydraulic manifolds from standardized components, reducing assembly time, leakage points, and space requirements.
-
Closed-Center Spool (1-4B): In the neutral position, all ports (P, T, A, B) are blocked. This design holds actuators in position and is suitable for systems with accumulator charging or certain types of fixed pump circuits.
-
Direct Solenoid Operation: Provides fast and reliable shifting without the need for a pilot pressure source, simplifying system design.
-
High Flow Capacity: Rated for flows up to 60 l/min (~16 GPM), making it suitable for a wide range of industrial machinery.
-
Rugged Construction: Built to ISO 4401 size 05 (CETOP 5) standards, ensuring dimensional compatibility and reliable performance under high pressure (up to 315 bar / 4570 psi).
-
Versatile Electrical Connection (W1-FW): Features a standardized, waterproof DIN 43650 Form A connector with integrated LED indicator for easy wiring and visual status feedback (power on).
-
Manual Override: Equipped with a manual override plunger on each solenoid for testing and emergency actuation without electrical power.
-
Wide Compatibility: Designed to work with standard mineral-based hydraulic oils (HL, HLP) as per ISO 11158, as well as biodegradable fluids.
PPC-R02.2N-N-Q1-NN-NN-FW
Technical Specifications (Based on Standard RD52.1 Series)
|
Parameter
|
Specification
|
|---|---|
|
Manufacturer / Series
|
Bosch Rexroth, RD52.1
|
|
Valve Type
|
Direct-operated, 4-way, 3-position directional valve
|
|
Mounting Interface
|
ISO 4401 Size 05 (CETOP 5)
|
|
Spool Type
|
1-4B (Closed Center: All ports blocked in neutral)
|
|
Nominal Size
|
NG 6 (Based on port size)
|
|
Maximum Operating Pressure
|
315 bar (4570 psi)
|
|
Maximum Flow Rate
|
60 l/min (15.85 US GPM)
|
|
Voltage & Coil Type (W1-FW)
|
Standard coil, Class F insulation. Voltage must be specified upon order (e.g., 24V DC, 110V AC, 230V AC).
|
|
Electrical Connection
|
DIN 43650 Form A (IP65 rated with mating plug), with LED
|
|
Fluid Compatibility
|
Mineral oils (HL, HLP), HETG/HEES biodegradable fluids
|
|
Fluid Temperature Range
|
-20°C to +70°C (-4°F to +158°F)
|
|
Weight (approx.)
|
2.5 kg (5.5 lbs)
|
Spool Function: 1-4B (Closed Center)
-
Position 0 (Centered, Solenoids de-energized): Ports P, T, A, and B are all blocked. The actuator is hydraulically locked in position.
-
Position a (Left Solenoid energized): P → A, B → T. Flow is directed to extend a cylinder or rotate a motor in one direction.
-
Position b (Right Solenoid energized): P → B, A → T. Flow is directed to retract a cylinder or rotate a motor in the opposite direction.
Typical Applications
-
Industrial Machinery: Presses, plastic injection molding machines, machine tools.
-
Material Handling: Forklifts, conveyor systems, lifting platforms.
-
Mobile Hydraulics: (In simpler circuits) Agricultural machinery, municipal vehicles.
-
Test Rigs & Automation: Where precise control of actuator position is required.
-
Factory Automation: As part of a centralized hydraulic power unit control manifold.
Required Accessories (Not Included)
-
Subplate: Such as REXROTH Z4S 6-1X/ series, for mounting to the manifold.
-
Electrical Plug Connector: Mating plug for the DIN 43650 socket (e.g., Bosch Rexroth plug set).
-
Solenoid Coils: Coils of the correct voltage, if not pre-assembled.
-
Manifold Sealing Kit: O-rings and sealing washers for leak-free mounting.
