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Diaphragm Accumulator/

SBO200-1E1/112U-200AK Type SBO Diaphragm Accumulators

Diameter

5.35 in136 mm

Height

7.19 in183 mm

Dimension Q

25 gpm

Dimension A

5.39 in137 mm

Hex Size

1.42 in36 mm

  • Product Detail

Diaphragm accumulators are a cost effective option for numerous functions involving energy storage, shock absorption or pulsation dampening in a hydraulic or fluid system. They are well suited for applications where smaller fluid volumes and flow rates are adequate and that require or involve:

  • Compact design
  • Low weight
  • Flexible mounting positions
  • Extremely quick shock response
  • Low cost
  • Low lubricity fluids, like water
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Specifications

TypeDiaphragm Accumulator
Model Code DescriptionSBO200-1E1/112U-200AK
Fluid Port ConnectionBSP Connection
Size (L)1
MaterialCarbon Steel
SeriesSBO 210
Manufacturing ProcessWelded
Connection SizeG 1/2 BSPP Female
RepairableNo
RechargeableYes
Country of InstallationPED/CE
Diaphragm CompoundNBR (Buna N)
Compound Operating Temperature Range (Mineral Oils)5 to 180 ºF
Compound Operating Temperature Range (Water and Water-Glycols (5% Minimum Glycol))32 to 180 ºF
Compound Operating Temperature Range (Low Temperature NBR)-50 to 180 ºF
Shell Construction and Gas Port DesignWelded Construction, rechargeable, HYDAC Gas Valve Version 1 (M 28 x 1.5)
ShellCarbon steel
Fluid PortCarbon steel
Depending on ApplicationStandard for oil service (mineral oil)
Thread (British Standard Pipe Parallel (BSPP) – Female)G1/2
Flow25 gpm95 L/min
Volume Capacity0.264 gal1.000 L
MAWP2900 psi200 bar
Division19
BUnEA

Construction

Both types of diaphragm accumulators have the same basic construction. The difference is in the shell. The welded version has a shell that is electron-beam welded, and therefore cannot be repaired. The threaded type has a shell made up of two halves (top and bottom) which are held together by a threaded locking ring.

Corrosion Protection

For use with certain aggressive or corrosive fluids, or in a corrosive environment, HYDAC offers protective coatings and corrosive resistant materials (i.e. stainless steel) for the parts that interface with the fluid or are exposed to the hostile environment.

Mounting Position

Diaphragm accumulators are designed to mount in any position. In systems where contamination is a problem, we recommend a vertical mount with the fluid port oriented downward.

System Mounting

HYDAC diaphragm accumulators are designed to be screwed directly onto the system. We also recommend the use of our mounting components, to minimize the risk of failure due to system vibrations.

Application

Some common applications of diaphragm accumulators are:

  • Agricultural Machinery & Equipment
  • Forestry Equipment
  • Machine Tools
  • Mining Machinery & Equipment
  • Mobile & Construction Equipment
  • Off-Road Equipment

 

Diaphragm Materials

Not all fluids are compatible with every elastomer at all temperatures, therefore, HYDAC offers the following materials:

  • NBR (Standard Nitrile)
  • LT-NBR (Low Temperature Nitrile)
  • ECO 30 (Epichlorohydrin)
  • IIR (Butyl)
  • FP

     

Additional Information

Diaphragm Accumulators have been successfully applied in both industrial and mobile applications for energy storage, maintaining pressure, leakage compensation, and vehicle hydraulic systems.

HYDAC manufactures two types of diaphragm accumulators:

  • Non-repairable (welded)
  • Repairable (threaded)

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