Product Detail

Series 4000 & 5000

Quick Overview


Rated Pressure: 4000 to 5000 PSI (276 to 345 bar)
Nominal Bore Size: 3 to 9 in (8 to 23 cm)
Max Recommended Flow: 834 to 7502 gpm (3157 to 28398 l/min)

Pressure Ratings

Parker 4000 & 5000 PSI piston accumulators are all rated at minimum 4 to 1 design factors.


Parker’s piston accumulators are compatible with a wide variety of fluids. Standard accumulators (with nitrile seals) may be used with petroleum-based industrial oils or water based flame resistant fluids. Optional seals compatible with most industrial fluids are available with temperature ranges from -45°F to 320°F (-43°C to 160°C).


Units are shipped with a nominal nitrogen precharge as standard. For specific precharge pressures, specify at the time of order.

Gas Valve

Series 4000 accumulators and auxiliary gas bottles are equipped with a high pressure cored gas valve cartridge as standard.
Series 5000 accumulators and gas bottles with 3" through 6" bores are supplied with a high pressure cored gas valve as standard. Models with 7" and 9" bores are supplied with a heavy duty, high-pressure, poppet-type gas valve cartridge (L07689000K) as standard.

Available Options

If your application requires a piston accumulator, gas bottle, or special option that falls outside of Parker’s broad offering, consult your local distributor, Parker representative, or the factory with your specific requirements. Parker has the manufacturing and engineering expertise to design and build piston accumulators to your exacting requirements, from simple modifications of standard units to complete designs. Some example of Parker’s past special designs include:

  • Special and Stainless Steel Materials
  • High Pressures
  • Extreme Temperatures
  • Piston Position and Velocity Sensors and Switches
  • Special Seals
  • Non-Standard Capacities
  • Water Service
  • Ports
  • Fixed Gauge Mounts
  • Fuse Plug Assemblies

Auxiliary Gas Bottles

When space does not permit the installation of the required piston accumulator, a smaller accumulator may be used by connecting it to an auxiliary gas bottle(s) that can be located in a nearby spot where space is available. In some cases, a piston accumulator and gas bottle combination may be more economical, especially large capacity sizes. Piston travel, confined to the accumulator, must be calculated with ample margins to store the required fluid.

Product Specifications