DN6 Direct Acting With Anti-Cavitation Poppet Type Cartridge Relief Valve

JRD06-01

Product Introduction:

The Direct Acting With Anti-Cavitation Cartridge Relief Valve is a common overload protection and anti-cavitation component in hydraulic systems. Its core feature is that the valve core is directly driven by hydraulic pressure (without pilot control). It has a simple structure and fast response. Direct Acting With Anti-Cavitation Cartridge Relief Valve is often used in closed hydraulic systems with medium and low pressures or those with high requirements for dynamic performance.

OPERATION：

• Overload pressure relief:

When the system pressure exceeds the spring setting value, the hydraulic pressure pushes the valve core to compress the spring, and the high-pressure oil flows back to the oil tank (or low-pressure side) through the pressure relief channel to achieve rapid pressure relief.

• Oil replenishment process:

When the pressure on the low-pressure side of the system drops due to leakage or cavitation, the pressure difference between the oil replenishment chamber and the low-pressure side drives the valve core to move in the opposite direction, and the oil from the oil tank or the oil replenishment pump enters the low-pressure side to  Anti-Cavitation.

FEATURES：

• Fast response speed: The direct-acting structure has no pilot control link. The valve core acts directly when the pressure fluctuates, and the dynamic characteristics are good.

• The valve core and valve sleeve are hard to handle and durable.

• Fast response to pressure change.

• Industrial conventional valve hole.

SPECIFICATIONS：

Max.Working Pressure:260bar（3770psi）

Flow:See performance curve.

Internal leakage:Under the opening pressure of 75%, the leakage is ≤10mL/min.

Opening Pressure Definition:Pressure measurement when the flow reaches 2.5% of the nominal flow.

Clossing Pressure:90% of opening pressure

Reverse Opening Pressure: ≤1.5bar(22psi)

Filtering Accuracy: 25 μ m.

Service Temperature:-40℃~ 120℃(NBR),-26℃~ 204℃(FKM)

Medium: Mineral oil with viscosity of 7.4 ~ 420 CST (50-2000) ssu or synthetic oil with lubricating function.

Standard Pressure Range: 30 ~ 140 bar (435 ~ 2030 psi)

                                        160 ~ 260 bar (2320 ~ 3770 psi)

CHARACTERISTIC：

DIMENSIONS：

Typical application scenarios:

• Closed hydraulic circuit (such as hydraulic motor drive system):

In equipment such as winches and travel motors, quick oil replenishment prevents air suction and Anti-Cavitation, while also relieving pressure to protect the motor.

• Small construction machinery (such as small excavators, forklifts):

Used for overload protection of boom hydraulic cylinders, adapting to frequent start and stop and sudden load changes.

• Servo system auxiliary circuit:

Provide fast pressure buffering for precision hydraulic systems to reduce the impact of pressure shock on servo valves.