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The accumulator bladder is an important component of a bladder-type accumulator and plays a crucial role in storing energy, stabilizing pressure, and absorbing shocks. It is made of rubber and possesses flexibility, minimal deformation, high strength, and resistance to oil, acids, and alkalis. To facilitate replacement, the top of the accumulator is generally designed with a large opening structure.
Accumulator working principle:
When the pressure in the hydraulic system increases, the liquid enters the accumulator and compresses the gas inside it. Conversely, when the pressure decreases, the compressed gas expands, pushing the liquid back into the system circuit, thereby storing and releasing energy.
Common materials used for accumulator bladders:
1. Nitrile rubber (NBR): It has good oil resistance, wear resistance, and elasticity, making it suitable for general hydraulic oil applications.
2. Butyl rubber (IIR): It is oil-resistant, heat-resistant, and has good aging resistance, making it cost-effective. It is suitable for high-temperature hydraulic oil environments, such as turbine fuel systems.
3. Fluorocarbon rubber (FKM): It offers excellent oil resistance, high-temperature resistance, and good chemical corrosion resistance. It is suitable for environments that require high oil and temperature resistance, such as hydraulic systems using synthetic hydraulic oils.
4. Hydrogenated nitrile rubber (HNBR): It combines the advantages of NBR and FKM, providing oil resistance, high-temperature resistance, and good ozone resistance. It is widely used in the hydraulic and automotive industries.
Note: The choice of material for the accumulator bladder significantly affects its performance and suitability for different environments.
| 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 |
Yoyik offers different types of Hydraulic Accumulator for industrial users:
Accumulator NXQ-A-2.5/31.5-L
Rubber Bladder NXQ-A-40/31.5-L-EH
Bfp Low Pressure Accumulator Skin NXQAB-100/-10-L
Bladder NXQ-AB-80/10 FY
Bladder LNXQ-A-10/20 FY
Bladder + Seal Kit NXQ-A-40/31.5-L-EH
Accumulator Gas Charging And Measuring Tool NXQ-AB-160/10-F-Y
Bladder Accumulator NXQA-16-20 F/Y
Accessories For Accumulator NXQ-F16/20-H-HT
Rubber Bladder For St Cwp Accumulator NXQ A-a/31.5-L-Y
Rubber Bladder For St High Pressure Accumulator NXQ A-10/31.5-L-EH
Bladder; Accumulator NXQ 10/10-L-E
Rubber, Bladder NXQ-A-25/31.5-L-EH
Accumulator NXQ-A-40/31.5-F-Y
Rubber Bladder For St Eh Oil Accumulator A-10/31.5-L-EH
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