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SBG low noise relief valve series features:
The SBG series is a low-noise pressure valve. It is used to control the pressure of the system and prevent the pump from exceeding the use pressure. It can be controlled and unloaded by the drain port.
Main specifications of SBG low noise relief valve series:
SBG low noise relief valve series ordering model description:
Instructions for use of SBG low noise relief valve series:
Recommended viscosity
Recommended viscosity during normal work: 15~400cSt
If the valve is equipped with an oil return damper, the viscosity range must be 15~200cSt. To
Recommended oil
Any hydraulic fluid listed below can be used.
Petroleum base oil: Use oil equivalent to ISO VG32 or VG46.
Synthetic liquid: Use phosphoric acid ester liquid or polyol ester liquid. When using phosphate ester fluid, please use special fluoro rubber seal.
Aqueous liquid: Use water glycol liquid. To
Working oil temperature
The continuous working temperature is: -17 ~ +70°C
Pollution control Attention should be paid to control the pollution of hydraulic fluid, otherwise it will cause damage to the valve or shorten the service life. Please ensure that the pollution degree is: NAS 1638 -11 grade, with 25μm or finer pipeline oil filter. To
Pressure adjustment
When adjusting the pressure, loosen the lock nut and slowly turn the handle. Clockwise means the pressure rises, and counterclockwise means the pressure drops. After the adjustment, don't forget to tighten the lock nut.
The pressure is limited by the installed retaining ring. When a working pressure cannot be reached, some retaining rings can be removed. To
Oil return form
If a remote control valve is used to control the pressure, the internal volume of the return pipe is too large, and frequency vibration is likely to occur. Therefore, the length and diameter of the piping should be minimized. To
Flow selection When the flow is small, the adjustment pressure will be unstable. When using models 03 and 06, the flow rate should be greater than 5l/min, when using model 10, the flow rate should be greater than 8l/min.
SBG low noise relief valve series installation dimension drawing:
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