NXQ Series Bladder Accumulator | NXQ-40L-31.5MPa | NXQ-63L-31.5MPa

LIC Hydraulic offers the NXQ Series Bladder Accumulator, the industry’s most trusted energy management solution for high-pressure hydraulics. Engineered for a $31.5\text{ MPa}$ working pressure, these accumulators utilize a flexible rubber bladder to separate nitrogen gas from the hydraulic fluid. Whether you need the NXQ-40L for pulsation dampening or the NXQ-63L for emergency energy storage, our accumulators provide instant response and robust safety features to maximize system uptime.

Key Technical Features

• High Dynamic Performance: The low-inertia bladder design allows for instantaneous expansion and contraction, making it superior at absorbing shock waves and smoothing pump ripple.

• Durability & Safety: The vessel is manufactured from high-tensile carbon steel according to pressure vessel standards, ensuring long-term structural integrity under extreme thermal and pressure cycles.

• Versatile Compatibility: Available with standard NBR bladders for mineral oils or specialized polymers for water-glycol and phosphate ester fluids.

• Modular Maintenance: The top-loading design allows for bladder inspection and replacement without removing the accumulator from the main mounting brackets.

Expert Safety & Maintenance Tips

• Pre-charge Pressure ($P_0$): Always use Dry Nitrogen for pre-charging. Never use oxygen or compressed air, as this can lead to explosions. The standard pre-charge pressure is typically $60\text{–}90\%$ of the minimum system working pressure.

• Orientation: For optimal bladder life, mount the accumulator vertically with the oil port at the bottom.

• Regular Inspection: Check the pre-charge pressure every $3\text{–}6$ months. A significant drop in $P_0$ indicates a leaking bladder or a faulty gas valve.