Flexible membrane separating gas and fluid in hydraulic accumulators to store energy and dampen pressure fluctuations.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Volume | 0.1-100 liters | |
| Diameter | 50-500 mm | |
| Gas Pre Charge | Nitrogen (typically 70-90% of system pressure) | |
| Connection Type | Threaded (NPT, BSP, SAE) | |
| Pressure Rating | 10-350 bar | |
| Temperature Range | -40°C to +120°C |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A hydraulic component that stores pressurized fluid to provide supplemental power, absorb shocks, or maintain system pressure.
A hydraulic device that reduces pressure fluctuations and pulsations in mud pump systems.
Accumulators are pressure storage reservoirs used in industrial machinery control systems, commonly referred to as Control Pods.
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Manufacturer profiles associated with Bladder/Diaphragm.
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Bladder accumulators use a bag-like elastomeric bladder inside a steel shell, while diaphragm accumulators use a fixed elastomeric diaphragm welded to a steel plate. Bladders typically offer higher volume efficiency, while diaphragms are more compact and suitable for lower volumes.
Typical service life is 5-10 years depending on operating conditions. Replace if visible damage, loss of pre-charge pressure, fluid contamination, or reduced system performance occurs. Regular inspection every 6-12 months is recommended.
Common causes include: excessive pressure cycling, temperature extremes, chemical incompatibility with hydraulic fluids, improper pre-charge pressure, contamination, and mechanical damage during installation.
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