Hydraulic Accumulator
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This page explains how Gas Bladder/Piston is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A flexible bladder or rigid piston that separates gas and hydraulic fluid within an accumulator.
Technical details and manufacturing context for Gas Bladder/Piston
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Nominal Volume | 0.5–50 L | Select based on required oil volume. |
| Maximum Operating Pressure | 10–35 MPa | Exceeding may cause rupture.GB/T 23252 |
| Operating Temperature | -40–85 °C | Outside range may degrade elastomer. |
| Bladder Material | NBR, IIR, EPDM | Compatibility with fluid.ASTM D2000 |
| Piston Material | Steel, SS304, SS316 | Corrosion resistance.ASTM A276 |
| Seal Material | NBR, FKM, PTFE | Temperature and fluid compatibility.ASTM D2000 |
| Connection Size | G1/4–G2 inch | Match system port.ISO 228-1 |
| Weight | 2–150 kg | Affects installation and support. |
| Precharge Pressure | 0.5–0.9 MPa | Typically 90% of min pressure. |
| Leakage Rate | ≤0.01 mL/min | Excessive leakage indicates seal failure.GB/T 23252 |
| Burst Pressure | ≥2.5× MPa | Safety factor over max pressure. |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Gas Bladder/Piston.
This component is essential for the following industrial systems and equipment:
| pressure: | Up to 5000 psi (345 bar) for bladders, up to 10,000 psi (690 bar) for pistons |
| flow rate: | Dependent on accumulator size and port configuration, typically 10-500 GPM (38-1893 L/min) |
| temperature: | -40°C to +120°C (typical), up to +150°C with specialized materials |
| slurry concentration: | Not recommended for abrasive slurries; maximum 5% solids by volume with specialized piston designs |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
5 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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It separates the compressible gas (typically nitrogen) from the hydraulic fluid, allowing the accumulator to store and release energy as pressure changes.
Bladders may be made of nitrile rubber, polyurethane, or other elastomers; pistons are often steel, stainless steel (SS304/SS316), or aluminum alloy. Seal materials include NBR, FKM, and PTFE.
Maximum operating pressure is typically 10–35 MPa, minimum 1.0–1.6 MPa, and operating temperature -40 to 85 °C. These are reference ranges; confirm for your application.
Signs include excessive leakage (above 0.01 mL/min), failure to maintain precharge pressure, or visible damage. Always consult the manufacturer for inspection intervals.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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