Hydraulic Accumulators
ROEMHELD F 9.601 Hydraulic Accumulators used in hydraulic power workholding applications
- Nominal volume 13 - 750 cm³
- Maximum operating pressure 250 - 500 bar
- Hydraulic fluid: hydraulic oil
- Nominal volume: 13 - 750 cm³
- Oil volume at pmax and 22°C: 45 - 625 cm³
- Standard gas-preload pressure 40 - 160 bar
- Connections: G1/4 - G1/2
- Adm. operating temperature [°C]: -10 - +80
Liquids are more or less incompressible and therefore are not in the position to store pressure energy. For hydraulic accumulators the compressibility of nitrogen is used to store liquids. A gas-tight diaphragm separates the liquid zone from the gas zone. In the bottom of the diaphragm there is a valve disk that avoids a damage of the diaphragm if the hydraulic accumulator will be completely discharged. Nitrogen is filled in at the screw plug and provided with the required preload. For this purpose an appropriate filling and testing fixture is required.
Hydraulic Accumulators - ROEMHELD F 9.601
- Nominal volume 13 - 750 cm³
- Max. operating pressure 250 - 500 bar
- Hydraulic fluid: hydraulic oil
- Nominal volume: 13 - 750 cm³
- Oil volume at pmax and 22°C: 45 - 625 cm³
- Standard gas-preload pressure 40 - 160 bar
- Connections: G1/4 - G1/2
- Adm. operating temperature [°C]: -10 - +80
Advantages:
- Sturdy diaphragm accumulator
- 5 sizes available
- Gas preload adaptable
- Energy-saving applications
- Mounting position: any
Application:
Hydraulic accumulators are used in hydraulic power workholding applications as energy accumulator for compensation of internal leakages or to compensate the volume in the case of temperature changes.
Energy storage:
With intermittent cycles the rating of the pump and thereby energy can be saved. During the breaks the pump refills the hydraulic accumulator. If required, a higher flow rate is available for a short time.
Description:
Liquids are more or less incompressible and therefore are not in the position to store pressure energy. For hydraulic accumulators the compressibility of nitrogen is used to store liquids. A gas-tight diaphragm separates the liquid zone from the gas zone. In the bottom of the diaphragm there is a valve disk that avoids a damage of the diaphragm if the hydraulic accumulator will be completely discharged. Nitrogen is filled in at the screw plug and provided with the required preload. For this purpose an appropriate filling and testing fixture is required. The offered hydraulic accumulators correspond to the regulations of article 3 paragraph 3 of the directives for pressure devices 97/23/EG and are not allowed to bear the CE sign.
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