Bladder-Style Hydraulic Accumulators
Charge these accumulators to the pressure you need, and they will help a system maintain a constant pressure during pump failure. Mount accumulators within 25° of vertical. UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.
Note: For safety, do not disassemble accumulators while they're under pressure.
Use a charging and gauging kit to increase or decrease an accumulator's charge.
For technical drawings and 3-D models, click on a part number.
Accumulators | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Inlet/Outlet Connection for Hydraulic Fluid—UN/UNF (SAE Straight) | Inlet/Outlet Connection for Nitrogen | Body | Repl. Bladder Bags | ||||||||||||
| Cap. | Max. Flow Rate, gpm | Max. Pressure, psi | Thread Size  | Gender | Dash Size | Valve Type | Gender | O'all Ht. | Ht. | Dia. | Mounting Orientation | Each | Each | ||
Steel Body with Buna-N Rubber Bag and Seal | |||||||||||||||
| 16 fl. oz. | 40 | 3,000 | 1 1/16"-12 | Female | 12 | Schrader | Male | 10 3/4" | 6 7/8" | 3 3/8" | Vertical | 00000000 | 000000000 | 00000000 | 0000000 |
| 32 fl. oz. | 40 | 3,000 | 1 5/16"-12 | Female | 16 | Schrader | Male | 11 1/8" | 7 5/8" | 4 1/2" | Vertical | 00000000 | 00000000 | 00000000 | 000000 |
| 1 gal. | 150 | 3,000 | 1 5/8"-12 | Female | 20 | Schrader | Male | 17" | 11 3/8" | 6 3/4" | Vertical | 00000000 | 00000000 | 00000000 | 000000 |
| 2 1/2 gal. | 220 | 3,000 | 1 7/8"-12 | Female | 24 | Schrader | Male | 21 3/8" | 15 1/2" | 9" | Vertical | 00000000 | 00000000 | 00000000 | 000000 |
| 5 gal. | 220 | 3,000 | 1 7/8"-12 | Female | 24 | Schrader | Male | 33 3/8" | 27 1/2" | 9" | Vertical | 00000000 | 00000000 | 00000000 | 000000 |
| Charging and Gauging Kits | 00000000 | Each | 0000000 |
Bladder Bags for Hydraulic Accumulators
Replace bladder bags when they show signs of wear.
For Accumulator | Mounting Stem Thread | ||||||
|---|---|---|---|---|---|---|---|
| Cap. | Dia. | Manufacturer | Bag Material | Size | Type | Each | |
| 16 oz. | 3 3/8" | Accumulators Inc., Bosch, Greer, Hydac, Oil Air, Parker, Vickers | Buna-N Rubber | 5/8"-18 | UN/UNF (SAE Straight) | 00000000 | 0000000 |
| 32 oz. | 4 1/2" | Accumulators Inc., Bosch, Greer, Hydac, Oil Air, Parker, Vickers | Buna-N Rubber | 5/8"-18 | UN/UNF (SAE Straight) | 00000000 | 000000 |
| 1 gal. | 6 3/4" | Accumulators Inc., Bosch, Greer, Hydac, Oil Air, Parker, Vickers | Buna-N Rubber | 7/8"-14 | UN/UNF (SAE Straight) | 00000000 | 000000 |
| 2 1/2 gal. | 9" | Accumulators Inc., Bosch, Greer, Hydac, Oil Air, Parker, Vickers | Buna-N Rubber | 7/8"-14 | UN/UNF (SAE Straight) | 00000000 | 000000 |
| 5 gal. | 9" | Accumulators Inc., Bosch, Greer, Hydac, Oil Air, Parker, Vickers | Buna-N Rubber | 7/8"-14 | UN/UNF (SAE Straight) | 00000000 | 000000 |
Charged Bladder-Style Hydraulic Accumulators
These accumulators come with a charge of nitrogen and are ready to use. They help a system maintain a constant pressure during pump failure. Mount accumulators within 25° of vertical. UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.
Note: For safety, do not disassemble accumulators while they're under pressure.
Use a charging and gauging kit to increase or decrease an accumulator's charge.
For technical drawings and 3-D models, click on a part number.
Accumulators | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Inlet/Outlet Connection for Hydraulic Fluid—UN/UNF (SAE Straight) | Inlet/Outlet Connection for Nitrogen | Body | Repl. Bladder Bags | |||||||||||||
| Cap. | Max. Flow Rate, gpm | Max. Pressure, psi | Nitrogen Charge, psi | Thread Size | Gender | Dash Size | Valve Type | Gender | O'all Ht. | Ht. | Dia. | Mounting Orientation | Each | Each | ||
Steel Body with Buna-N Rubber Bag and Seal | ||||||||||||||||
| 16 fl. oz. | 40 | 3,000 | 1,000 | 1 1/16"-12 | Female | 12 | Schrader | Male | 10 3/4" | 6 7/8" | 3 3/8" | Vertical | 00000000 | 0000000 | 00000000 | 0000000 |
| 32 fl. oz. | 40 | 3,000 | 1,000 | 1 5/16"-12 | Female | 16 | Schrader | Male | 11 1/8" | 7 5/8" | 4 1/2" | Vertical | 00000000 | 00000000 | 00000000 | 000000 |
| 1 gal. | 150 | 3,000 | 2,100 | 1 5/8"-12 | Female | 20 | Schrader | Male | 17" | 11 3/8" | 6 3/4" | Vertical | 00000000 | 00000000 | 00000000 | 000000 |
| 2 1/2 gal. | 220 | 3,000 | 2,100 | 1 7/8"-12 | Female | 24 | Schrader | Male | 21 3/8" | 15 1/2" | 9" | Vertical | 00000000 | 00000000 | 00000000 | 000000 |
| 5 gal. | 220 | 3,000 | 2,100 | 1 7/8"-12 | Female | 24 | Schrader | Male | 33 3/8" | 27 1/2" | 9" | Vertical | 00000000 | 00000000 | 00000000 | 000000 |
| Charging and Gauging Kits | 00000000 | Each | 0000000 |