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 DescriptionSBO210-2E1/112U-210AB
Fluid Port ConnectionMale / Female Combination Connection
Weight6.6 kg14.6 lb
Size (L)2
MaterialCarbon Steel
SeriesSBO 210
Manufacturing ProcessWelded
Connection SizeG3/4 BSPP Female Plus M33x1.5 DIN 13 Male
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
Shell Construction and Gas Port DesignWelded Construction, rechargeable, ZP 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)G3/4
Thread (DIN 13 – Male)M45 x 1.5
Flow40 gpm150 L/min
Volume Capacity0.528 gal2.000 L
MAWP3000 psi210 bar
Effective Gas Volume120 in³
Division19
BUnEA

Dimensions

Diameter6.57 in167 mm
Height8.37 in213 mm
Dimension Q40 gpm
Dimension A6.81 in173.0 mm
Hex Size1.81 in46 mm

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, ZP 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

ZP 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 & EquipmentForestry EquipmentMachine ToolsMining Machinery & EquipmentMobile & Construction EquipmentOff-Road Equipment

Diaphragm Materials

Not all fluids are compatible with every elastomer at all temperatures, therefore, ZP 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.

ZP manufactures two types of diaphragm accumulators:Non-repairable (welded)Repairable (threaded)

If you work with gas cylinder or information about our company. You can communicate with us on the website. Our official website is www.zpcylinder.com. Our cost-effective products are very popular.

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