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| Description |
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:
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| Type | Diaphragm Accumulator | |||||||||
| Model Code Description | SBO200-1E1/112A9-200AK | SBO200-1E1/112S-210AB | SBO200-1E1/112S-210AK | SBO200-1E1/112S-210CK | SBO200-1E1/112U-200AB | |||||
| Fluid Port Connection | BSP Connection | Male / Female Combination Connection | BSP Connection | Standard SAE Connection | Male / Female Combination Connection | |||||
| Weight | ||||||||||
| Size (L) | 1 | |||||||||
| Material | Carbon Steel | |||||||||
| Series | SBO 210 | |||||||||
| Manufacturing Process | Welded | |||||||||
| Connection Size | G 1/2 BSPP Female | G1/2 BSPP Female Plus M33x1.5 DIN 13 Male | G 1/2 BSPP Female | 3/4-16 UNF Female | G1/2 BSPP Female Plus M33x1.5 DIN 13 Male | |||||
| Connection Gender | ||||||||||
| Repairable | No | |||||||||
| Rechargeable | Yes | |||||||||
| Country of Installation | China Hong Kong | USA/ASME | USA/ASME | USA/ASME | PED/CE | |||||
| Diaphragm Compound | NBR (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 | |||||||||
| Compound Operating Temperature Range (Water and Water-Glycols (Mineral Oils)) | ||||||||||
| Compound Operating Temperature Range (Water and Water-Glycols (Mineral Oils and Water (with Low Temperature CS Shell))) | ||||||||||
| Compound Operating Temperature Range (Water and Water-Glycols (Phosphate Esters and Brake Fluids)) | ||||||||||
| Compound Operating Temperature Range (Water and Water-Glycols (Chlorinated Hydrocarbons)) | ||||||||||
| Shell Construction and Gas Port Design | Welded Construction, rechargeable, HYDAC Gas Valve Version 1 (M 28 x 1.5) | |||||||||
| Shell | Carbon steel | |||||||||
| Fluid Port | Carbon steel | |||||||||
| Depending on Application | Standard for oil service (mineral oil) | |||||||||
| Thread (Society of Automotive Engineers (SAE) - Female) | 3/4-16 UNF | |||||||||
| Thread (British Standard Pipe Parallel (BSPP) - Female) | G1/2 | G1/2 | G1/2 | G1/2 | ||||||
| Thread (DIN 13 - Male) | M33 x 1.5 | M33 x 1.5 | ||||||||
| Flow | 25 gpm95 L/min | |||||||||
| Maximum Pressure Ratio (p2:p0) | ||||||||||
| Volume Capacity | 0.264 gal1.000 L | |||||||||
| MAWP | 2900 psi200 bar | 3000 psi210 bar | 3000 psi210 bar | 3000 psi210 bar | 2900 psi200 bar | |||||
| MAWP Values for Stainless Steel Models | ||||||||||
| Effective Gas Volume | ||||||||||
| Diameter | 5.35 in136 mm | |||||||||
| Height | 7.19 in183 mm | |||||||||
| Dimension Q | 25 gpm | |||||||||
| Dimension A | 5.39 in137 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, 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. | |||||||||
| Applications |
Some common applications of diaphragm accumulators are:
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| Diaphragm Materials |
Not all fluids are compatible with every elastomer at all temperatures, therefore, HYDAC offers the following materials:
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| Hex Size | 1.42 in36 mm | 1.61 in41 mm | 1.42 in36 mm | 1.42 in36 mm | 1.61 in41 mm | |||||
| BUn | EA | |||||||||
| 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:
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| Core Products | ||||||||||
| Division | ACCUMULATORS | ACCUMULATORS | ACCUMULATORS | ACCUMULATORS | ||||||
| Product Group Family | DIAPHRAGM ACCUMULATORS | DIAPHRAGM ACCUMULATORS | DIAPHRAGM ACCUMULATORS | DIAPHRAGM ACCUMULATORS | ||||||
| Product | DIAPHRAGM ACCUMULATORS | DIAPHRAGM ACCUMULATORS | DIAPHRAGM ACCUMULATORS | DIAPHRAGM ACCUMULATORS | ||||||
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