Hydac 3107090
High Pressure Bladder Diaphragm Accumulator
HYDAC is a German-based, internationally operating group specializing in fluid technology, hydraulics, and electronic control systems. Founded in 1963, the company offers components, systems, and services for various industrial and mobile applications. HYDAC is known for its expertise in hydraulics, system technology, and fluid engineering, providing solutions across multiple industries.
A bladder diaphragm accumulator is a type of hydropneumatic accumulator that uses a flexible bladder or diaphragm to separate a gas (typically nitrogen) from a hydraulic fluid. These accumulators store energy in the form of compressed gas, which can then be released to supplement pump flow, maintain pressure, or absorb shocks in a hydraulic system.
Diaphragm accumulators are normally supplied with a transit pressure (less than 2
bar). The hydraulic accumulator must be charged by the operator to the required pre-charge pressure before commissioning. The pre-charge pressure is indicated on a
label on the accumulator shell, or stamped on the accumulator shell or engraved on the type code label. The nominal values of the pre-charge pressure are based on a charging temperature of 20 °C.
Pre-charge pressure level
The pre-charge pressure level is calculated from the system operating data. If the pre-charge pressure is too high the full-PTFE-diaphragm can become damaged.
Technical Specification
Series: SB0330
Type: Rechargeable M28x1.5
Nominal Volume (l): 1.4
Fluid Port Form: Standard Connection G3/4
Material: Mineral Oils
Fluid Port Material: Carbon Steel
Accumulator Shell: Carbon Steel
Accumulator Bladder: NBR
Certification Code: European Pressure Equipment Directive (PED)
Permitted Operating Pressure: 330 Bar
Pre-Charge Pressure Ratio: 4:1
Temperature Range: -10 °C ... +80 °C
Connection Type: Female Thread
DANGER Risk of explosion
● Only use nitrogen as a charging gas.
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