The NXQ A-a/31.5-L-Y bladder accumulator is a widely used hydraulic accumulator, mainly used to absorb and release energy in hydraulic systems. It has functions such as energy storage, stable hydraulic system operation, and relief of hydraulic impacts.
Working Principle:
The working principle of the NXQ A-a/31.5-L-Y accumulator is that the bladder of the accumulator is filled with nitrogen gas, forming a gas chamber. When the pressure in the hydraulic system increases, the accumulator bladder is compressed, compressing the gas and storing energy. When the system needs to release energy, gas expansion pushes hydraulic oil back into the system, playing a role in smoothing system operation and alleviating hydraulic impact.
Structure:
The NXQ A-a/31.5-L-Y accumulator consists of components such as a shell, bladder, air valve, oil valve, connecting bolt, etc. The leather bag is made of soft rubber material, which has strong elasticity and corrosion resistance. This material can maintain its shape under pressure changes and withstand the action of hydraulic oil and nitrogen.
Maintenance and upkeep of NXQ A-a/31.5-L-Y accumulator:
Regularly check the condition of the accumulator bladder to ensure there is no damage or aging. At the same time, check the nitrogen pre charging pressure to ensure it is within the normal range. The parts that need to be kept in stock for accumulator maintenance include: charging valve, sealing ring, oil valve, charging tool, etc.
Rubber Bladder Specification for Reference | ||||
Bladder Size | Optional Bladder Material | Length | Connection Size | Accumulator Diameter |
20L | NBR / IIR / FKM | 380mm | M30×1.5mm | Φ299mm |
25L | NBR / IIR / FKM | 470mm | M30×1.5mm | Φ299mm |
40L | NBR / IIR / FKM | 740mm | M30×1.5mm | Φ299mm |
63L | NBR / IIR / FKM | 1180mm | M30×1.5mm | Φ299mm |
80L | NBR / IIR / FKM | 1440mm | M30×1.5mm | Φ299mm |
100L | NBR / IIR / FKM | 1880mm | M30×1.5mm | Φ299mm |
1. For the power plant's EH oil system, the bladder needs to withstand the high temperature of the oil to ensure long-term use in a high-temperature environment.
2. The design of the large opening structure makes the bladder easier to replace, improving the convenience of system maintenance.
3. The bladder has minimal deformation and high strength, allowing it to withstand high pressure.
4. The high-quality material used in the bladder provides good resistance to oil, acids, and alkalis.
5. The bladder is safe and reliable, with a one-piece molded construction, which extends its lifespan and reduces the risk of rupture.


1. Used for storing energy and stabilizing hydraulic pressure in hydraulic systems.
2. Used to improve the hydraulic system performance of construction machinery and reduce system load.
3. Used in aerospace hydraulic systems to improve system response speed and stability.
4. Applied in manufacturing equipment such as hydraulic presses and injection molding machines to smooth system operation.
5. Used in the hydraulic system of ships to reduce system impact and improve navigation stability.
Yoyik offers different types of Hydraulic Accumulator for industrial users:
accumulator air inlet valve NXQA-10/31.5-L-EH
low pressure hydraulic accumulator 2L NBR
Accumulator charge valve NXQ-A-10/20 FY
hydraulic accumulator tower NXQ-40-31.5/*-L/F
nxq bladder accumulator A-40/31.5-L-EH
hydraulic pressure accumulator NXQA.10/20 LEH
accumulator recharge kit NXQ-A-2.5/31.5-L
Rubber Bladder for ST CWP Accumulator NXQ-AB-40 /20-LY
bladder accumulator symbol NXQ1-F16/20-H-HT
Bladder & Gas valve 10 Liter, 200 Bar
accumulator in hydraulic system 6.3L NBR 31.5Mpa
accumulators in hydraulic system NXQ-A-10/20 LEH
Poppet Valve 20L NBR
accumulator test kit NXQA-25/31.5-L-EH
accumulator charging kit nitrogen NXQ-AB-40/31.5-L-E
hydraulic accumulator manufacturers NXQ-AB-100/10
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- ABOUT US -
Dongfang Yoyik Engineering Co., Ltd is located in Deyang, Sichuan, China's heavy equipment base, was founded in 2004. The company is a professional power plant spare parts manufacturer and supplier. Our products are applicable for many thermal power plants, hydropower plants, metallurgic industrial power plant, cement plant power house, aluminum plant power house, and coal mill power plants.

Yoyik is the exclusive agent of W.M. Nugent CO Inc for selling Nugent filter elements and filtration system products in China. The company also has great advantages in of many hydraulic products, including pumps, valves, sealing materials, etc. the brands include Eaton, Vickers, Moog, star, copaltite, temp-tite, 707, etc.

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