Proportional Flow Valve Rexroth Interchangeable

Proportional Flow Control Valve 3FREEZ-1X

MANUFACTURER Genuine Huade Hydraulic
STANDARDS ISO 4401 / DIN 24340
AVAILABILITY Factory Direct Stock
TECHNICAL REPLACEMENT NOTICE

This Huade® directional control valve serves as a 100% direct drop-in replacement for Bosch Rexroth PROPORTIONAL-FLOW-CONTROL-VALVE-3FREEZ-1X equivalents. Dimensions, mounting interfaces, and technical parameters are identical. Designed for cost reduction in industrial and mobile hydraulic systems.

• Product features:Complies with CE, EMC directives
• Specifications:Proportional Flow Control Valve 3FREEZ-1X series,
• Applications:hydraulic systems, construction machinery,

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100% Genuine Huade Direct factory authorized supply
ISO 4401 Mounting ISO 4401 / Rexroth interchangeable
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Technical Data Sheet

  • Product Overview
  • Features & Applications
  • Technical Parameters

Product Overview

Proportional flow valve 3FREEZ-1X is a high-precision fluid control component, which is usually used in industrial automation systems that require precise flow regulation or flow ratio distribution. Valve 3FREEZ-1X is an electronically controlled proportional regulator (0-10V/4-20mA signal input). The pressure can usually reach 315Bar, suitable for high-pressure hydraulic systems. Proportional flow valve 3FREEZ-1X valve can be integrated with PLC and DCS systems and supports MODBUS and other communication protocols. The proportional valve 3FREEZ-1X controls the flow rate through the proportion of electrical signals, realizes stepless speed regulation of the actuator, and improves the response accuracy of the system.

Directly controlled flow control valves NG6 and NG10 with on-board electronics and inductive position transducer

With position control, minimal hysteresis < 1 %, see Technical Data

The 3-way function is determined by how the hydraulic ports are assigned (residual flow runs through port P, 3rd way)

Adjustable by means of the controlled solenoid position, the position transducer and the on-board electronics

For subplate attachment, mounting hole configuration NG6 to ISO4401-03-02-0-94,NG10 to ISO 4401-05-04-0-94

Subplates as per catalog sheet,RE 45053 for NG6, RE 45055 for NG10 (order separately)

Plug-in connector to DIN 43563-AM6, see catalog sheet RE 08008 (order separately)

Data for the on-board trigger electronics

Industrial Applications

  • Proportional flow valve 3FREEZ-1X is widely used in hydraulic systems, construction machinery, injection molding machines, die-casting machines, chemical/process control, etc. The explosion-proof model can also be used in automation equipment in hazardous areas such as oil and natural gas.
  • General
  • Type 3FREEZ proportional flow control valves with position control and on-board electronics are available in nominal sizes6 and 10. They are actuated by means of a proportional solenoid with inductive position transducer. Hysteresis is < 1 %.
  • The on-board electronics are calibrated at the factory and enable rapid response times. The design of the valve body is such that the residual flow runs through port P.
  • Basic principle
  • To adjust the oil flow rate from B, a setpoint is set in the trigger electronics. Based on this setpoint, the electronics control the solenoid coil as a function of the signal from the position transducer. The position control ensures very low hysteresis. The valve opening is determined by the metering edges on the spool, and the integrated pressure compensator compares the pressure drop by means of an 8-bar measuring spring. The pressure compensator with measuring spring regulates the pressure before the throttling edge according to the simplified formula: "Load pressure plus force of measuring spring”. In this way, the pressure drop over the metering edge is maintained at a constant level.

Technical Parameters

Mechanical ratings and operating limits for the Proportional Flow Control Valve 3FREEZ-1X:

Parameter / Dimension Name Value / Rating Specification
General General
Construction - Spool-type valve with integrated pressure compensator Spool-type valve with integrated pressure compensator
Actuation - Proportional solenoid with position control and on-board electronics OBE Proportional solenoid with position control and on-board electronics OBE
Mounting position - Optional Optional
Ambient temperature range ℃ - -20~+50 -20~+50
Weight kg - NG6(3.1) NG6(3.1)
- NG10(6.9) NG10(6.9)
Hydraulic Hydraulic
Pressure fluid - Hydraulic oil to DIN 51524...535, other fluids after prior consultation Hydraulic oil to DIN 51524...535, other fluids after prior consultation
Viscosity mm2/s - 20...100 (recommended) 20...100 (recommended)
Viscosity mm2/s - 10...800(max.permitted) 10...800(max.permitted)
Pressure fluid temperature range ℃ - -20~+70 -20~+70
Static/Dynamic Static/Dynamic
Hysteresis % - ≤1 ≤1
Range of inversion % - ≤0.5 ≤0.5
Manufacturing tolerance % - ≤5 ≤5