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HK OLM A

Diaphragm accumulator, connection A
Material
type 1: membrane NBR 
type 2: membrane ECO 
Application
Energy storage 
Emergency actuation 
Leak oil and volume compensation 
Shock absorption and pulsation damping 
Suspension of vehicles 
Connections
Oil side type A - female thread 
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Characteristics

Material
  • type 1: membrane NBR 
  • type 2: membrane ECO 
Application
  • Energy storage 
  • Emergency actuation 
  • Leak oil and volume compensation 
  • Shock absorption and pulsation damping 
  • Suspension of vehicles 
Connections
  • Oil side type A - female thread 
Construction type
  • installation preferably vertical, gas side top 
Temp. range
  • Type 1: -10 °C to +80 °C 
  • Type 2: -40 °C to +80 °C 
Customs tariff number
  • 84798997 
All characteristics

Produktbeschreibung

Notes
CE-mark for diaphragm accumulators > 1.0 l gas volume
Working pressure 100 to 350 bar; min. working pressure must be 10% above gas charge pressure
Max. gas filling pressure 130 bar
Description
As liquids are practically incompressible, the compressibility of a gas (in this case nitrogen) is used in hydraulic accumulators to store energy.
A hydraulic accumulator consists of two chambers (liquid side and gas side), which are separated by a flexible, gas-tight element. The liquid side is connected to the hydraulic circuit of the system. When the pressure in the system rises, the accumulator is filled with oil and the gas is compressed. If the pressure drops, the stored pressurised liquid is forced back into the circuit by expansion of the compressed gas.
Ordering information
Pressure accumulators are available uncharged ex-warehouse. Additional costs apply upon customer request for N2-charging.

Product variants

13 Results
Show dimensional drawing
Identifier
Type
Gas volume l (l)
p max. (bar)
pma : p0
Price / items
Type 1: Standard
Type 2: low temperature version
p0 = gas charge pressure
pmax - pmin = admissible pressure fluctuation of the accumulator

Shows 10 of 13

Column selection

Type
Gas volume l (l)
p max. (bar)
pma : p0
p max - p min (bar)
A (mm)
B (mm)
F
SW (mm)
Ø D (mm)
Ø G (mm)
Type 1: Standard
Type 2: low temperature version
p0 = gas charge pressure
pmax - pmin = admissible pressure fluctuation of the accumulator