Excellent sealing performance Hydraulic Control Valve YS6-03A For Crane Outrigger Cylinder Locking

Hydraulic Control Valve Introduction

The YS6-03A bidirectional hydraulic lock is a domestically produced high-performance hydraulic control valve, composed of two parallel hydraulically controlled check valves. It is primarily used in the hydraulic systems of construction machinery to achieve bidirectional position locking and load pressure maintenance of hydraulic cylinders. It automatically locks the bidirectional oil circuit when there is no pilot pressure, preventing the cylinder from sliding or falling due to its own weight, external force, or leakage, ensuring system safety and stability. It is widely used in applications requiring fall protection and long-term pressure maintenance, such as outrigger cylinders for truck cranes/cranes, excavator booms/outrigger cylinders, aerial work platforms, and concrete pump trucks.

A two-way hydraulic lock (also known as a two-way hydraulically controlled check valve or hydraulic lock) is a hydraulic control valve composed of two hydraulically controlled check valves. It is used in the hydraulic systems of engineering machinery to achieve two-way locking of cylinders and load pressure maintenance. We can also provide several series such as VBSO-DE-*G-G/M, SO-K*-B, and VBPDE-A-G*.

Hebei Runhe Hydraulic Machinery Co., Ltd. brings 12+ years of hydraulic industry experience. It focuses on manufacturing high-quality hydraulic components for automation, agriculture and construction, providing tailored production services that adhere to strict quality control and customer-specific technical requirements.

Hydraulic Control Valve Parameters

Hydraulic Control Valve Application

• Truck Cranes/Crane Trucks: The most typical application is locking the outriggers (outrigger cylinders) during operation to prevent them from sinking or collapsing accidentally, ensuring overall vehicle stability and operational safety.
• Excavators: Used for pressure-holding and locking the boom, arm, stick, or outrigger cylinders to prevent the boom from slowly lowering due to leakage during prolonged downtime or under load.
• Aerial Work Platforms/Sling Platforms/Articulated Boom Lifts: Locking the boom or platform lifting cylinders to prevent falls from heights.
• Concrete Pump Trucks/Pumping Equipment: Pressure-holding for boom extension or outrigger cylinders.

Hydraulic Control Valve Package

Normally, it is packaged in cardboard boxes and then shipped on pallets or wooden crates.