Bladder accumulator comprises of a seamless cylindrical shell or welded body vessel, made of high tensile steel, consisting of a fluid section and gas section with rubber bladder mounted inside this shell which acts as the gas-proof screen. Based on application needs, this bladder is pre-charged to specified gas pressure with inert gas.
The drop in circuit pressure will eventually cause the inert gas filed inside the bladder to expand, and forces the stored fluid in the accumulator shell into the circuit.
A small oil volume of min 10% is maintained between the bladder bottom and Oil valve top, to ensure that the bladder bottom does not hit the oil valve during every gas expansion process.
Specifications
- Pressure : 20 …… 1000 bar.
- Nominal Volume : 0.63 ……. 600 litres
- Flow rate range : up to 100 l/s …. 3000 lpm
- Temperature range : -40 °C ... +100 °C
- Material of Construction - Accumulator shell - Carbon Steel, SS 316L, C.S. with Internal Ni-plating (20-40 micron), - Bladder Elastomer - Perbunan (NBR), Butyl (IIR), Ethylene oxide (ECO), Viton (FPM)
- Gas valve conn. - VG5, 5/8"/ 7/8" UNF, 1⁄4" BSP
- Fluid port conn. - 3/4", 1-1/4", 2", 2-1/2", SAE Flange
- Coatings - Primer, Ni Plating, Internal Rubber lining, offshore prime coat, plastic coatings
- Certification - Mfg. factory Standard, PED 97/23/EC, CE, U-Stamp, ASME VIII div 1, ABS, etc.
Other Features
- Fully Repairable type
- High flow rate can be obtained
- Compact construction
- Low maintenance
- Use with Manifold block with flanged fluid ports
- Transfer Barrier type version available, wherein it can be used with a back-up N2 bottle
Typical Applications
- Energy storage for intermittent operating system
- Energy reserve for emergencies
- Compensation of leakage losses
- Shock and vibration absorption
- Volume compensation due to system pressure and temperature changes
Advantages and benefits of bladder accumulators
- Fast discharge
- Immediate and instantaneous response
- No Pressure differential between gas and fluid side
- Compact design with minimum maintenance
- Adaptation to wide range of low and high temperature
- Suitable for wide range of low to medium and high pressure range
Please call or contact us to assist you upon your requirements of bladder accumulator or parts thereof that you may in need, we’ll be delighted to help and assist!