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HK OLM 2.8 250 A

Diaphragm accumulator 2.8L 250bar
Product details for

HK OLM 2.8 250 A

Type
1
Gas volume l
2.8 l
p max.
250 bar
pma : p0
6:1
p max - p min
140 bar
A
268 mm
B
21 mm
F
G 3/4″ -14
SW
41 mm
Ø D
169 mm
Ø G
32 mm
All characteristics

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

Product description

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
Da Flüssigkeiten praktisch inkompressibel sind, wird in hydraulischen Druckspeichern die Kompressibilität eines Gases (hier Stickstoff) zur Speicherung von Energie verwendet.
Ein hydraulischer Druckspeicher besteht aus zwei Kammern (Flüssigkeitsseite und Gasseite), welche durch ein flexibles, gasdichtes Element getrennt sind. Die Flüssigkeitsseite ist mit dem hydraulischen Kreislauf der Anlage verbunden. Bei einem Druckanstieg in der Anlage wird der Speicher mit Öl gefüllt und das Gas komprimiert. Bei einem Druckabfall wird die gespeicherte Druckflüssigkeit durch Expansion des komprimierten Gases in den Kreislauf zurückgedrängt.
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
Details / items
0.075 l
250 bar
8:1 
Learn more
0.16 l
250 bar
6:1 
Learn more
0.32 l
210 bar
8:1 
Learn more
0.5 l
210 bar
8:1 
Learn more
0.75 l
210 bar
8:1 
Learn more
0.75 l
350 bar
8:1 
Learn more
1 l
210 bar
8:1 
Learn more
1.4 l
140 bar
8:1 
Learn more
1.4 l
210 bar
8:1 
Learn more
2 l
100 bar
8:1 
Learn more
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