ZS1 Type Multi-way Directional Valve

I. Product Introduction

The ZS1 type multi-way directional valve belongs to the combined directional control valve category. The valve body integrates relief valve, check valve, manual directional valve, and return valve, and also belongs to the multi-directional switching combined valve category, assembled with two or more switching valve bodies as the main body. The valve body relies on relative displacement of internal components to switch the on/off state of external oil circuits, and can optionally be equipped with safety check valve, check valve, makeup oil valve and other auxiliary valve groups, suitable for centralized control of walking machinery hydraulic oil circuits.

II. Oil Circuit Structure and Specification Configuration

1. Oil circuit layout: The valve body is equipped with common oil inlet and common oil return ports, with built-in parallel oil circuit structure, and the oil inlet and return branch circuits of each directional valve are connected in parallel;

2. Number of sections: 1-5 sections of directional valve bodies can be assembled as needed, suitable for synchronized control of multi-channel actuators;

3. Spool function: Equipped with O, H, A, Y and other spool functions as standard, suitable for different neutral position oil circuit unloading and pressure maintaining conditions;

4. Control positioning: Equipped with spring return and ball positioning two gear locking methods, suitable for different control locking requirements.

III. Working Principle

Through manual control of the valve body spool displacement, the internal oil circuit conduction direction is changed, the hydraulic working medium flow direction is switched, and the start/stop and reversing actions of multiple hydraulic actuators such as oil cylinders and oil motors are centrally controlled, suitable for collaborative control of multi-channel hydraulic actions of the whole machine, suitable for engineering machinery centralized control operations.

IV. Core Product Features

1. Integrated combined structure, compact overall layout, small equipment installation space, suitable for vehicle-mounted integrated assembly;

2. Parallel oil circuit design, multi-channel branch circuits independently controllable, medium diversion smooth, small medium pressure loss in the valve;

3. Excellent spool fitting accuracy, smooth reversing movement, good reversing stability, with multi-position gear regulation function;

4. Strong expansion adaptability, can install various auxiliary valve groups, integrating pressure relief, makeup oil, and check protection multi-functions;

5. Simple processing technology, strong mass production adaptability, valve body structure wear-resistant and pressure-resistant, long overall service life;

6. Optional positioning methods, spring return suitable for high-frequency reversing, ball positioning suitable for gear-fixed duty conditions;

7. Rich spool models, multiple neutral functions available, suitable for pressure maintaining, unloading, floating differentiated oil circuit requirements.

V. Application Scope

Exclusively suitable for lifting and transport machinery, mining engineering machinery, and various vehicle-mounted walking machinery matching hydraulic systems, mostly used for centralized control of multi-channel hydraulic actuators, switching oil circuit flow direction, controlling oil cylinder and hydraulic motor telescopic and rotary actions, completing equipment working mechanism linkage control.

VI. Usage Precautions

1. The number of assembled valve sections should match the equipment actuator quantity, parallel oil circuit connection should be standard, to avoid oil circuit cross-pressure;

2. Select spool function according to oil circuit neutral working conditions, pressure maintaining conditions use suitable neutral closed function, unloading uses flow-through function;

3. Select return structure as needed, high-frequency manual reversing prefers spring return, fixed station operation prefers ball positioning;

4. External auxiliary valve components must match the valve body rated pressure, ensuring relief, makeup oil, and check function linkage adaptability;

5. Strictly control hydraulic oil cleanliness, install oil circuit filtration devices, reduce impurity wear on spool fitting surfaces, avoiding reversing sticking;

6. Manually operate the reversing handle at uniform speed, avoid violent pulling, reduce spool and valve hole wear, extend valve body service life;

7. Regularly check the common return oil pipeline patency, prevent excessive return oil back pressure from affecting multi-way valve reversing action accuracy.