Hydraulic Accumulators.
Energy storage and pressure stabilisation for engineered circuits.
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Get the right configuration.
Final specifications, compatibility and availability are confirmed against your selected part and operating conditions.
Circuit position and required function
Flow, working pressure and temperature
Connection and installation dimensions
Filtration target or performance requirement
Piston accumulator exact capacities and dimensions.
Piston accumulator capacity and external dimensions for the exact model. The listed model table does not establish working pressure, temperature or seal material. Confirm these limits for the selected model; bladder-accumulator ratings do not apply to this piston range.
| Part code | Accumulator type | Bore mm | Hydraulic connection | Length l mm | Nominal capacity l | Outside diameter mm |
|---|---|---|---|---|---|---|
| RBH 010 | piston | 125 | 3/4 NPT | 230 | 1 | 145 |
| RBH 025 | piston | 125 | 3/4 NPT | 350 | 2.5 | 145 |
| RBH 040 | piston | 125 | 3/4 NPT | 475 | 4 | 145 |
| RBH 055 | piston | 125 | 3/4 NPT | 600 | 5.5 | 145 |
| RBH 100 | piston | 125 | 3/4 NPT | 965 | 10 | 145 |
| RBH 120 | piston | 125 | 3/4 NPT | 1125 | 12 | 145 |
| RBH 160 | piston | 125 | 3/4 NPT | 1450 | 16 | 145 |
Diaphragm accumulator HST selection.
Diaphragm accumulator capacities, labelled dimensions and model-specific flow limits. Listed maximum pressure 300 bar; maximum nitrogen precharge 210 bar for this selection. Maximum precharge is a design limit; operating precharge must suit the circuit. Confirm fluid, seals, temperature and mounting drawing. Dimensions are confirmed for the selected model.
| Part code | Accumulator type | Dimension b mm | Dimension c mm | Dimension d mm | Dimension h mm | Hydraulic connection | Mass kg | Max flow l min (L/min) | Max nitrogen precharge bar | Max pressure bar | Nominal capacity l |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ACC HST035 | diaphragm | 100 | 22 | 101 | 152 | M18×1.5 female | 4 | 50 | 210 | 300 | 0.35 |
| ACC HST07 | diaphragm | 80 | 22 | 100 | 218 | M18×1.5 female | 5.5 | 55 | 210 | 300 | 0.7 |
| ACC HST13 | diaphragm | 180 | 22 | 125 | 232 | M18×1.5 female | 8.2 | 55 | 210 | 300 | 1.3 |
Small diaphragm accumulator model limits.
Small diaphragm accumulator model-specific capacity, pressure and compression-ratio selections. Temperature range −20°C to +90°C for the listed family. Pressure and compression-ratio limits vary by model. Confirm the hydraulic and gas connections and the application precharge; ambiguous gas-thread notation is not published as a verified connection.
| Part code | Accumulator type | Body diameter mm | Mass kg | Nominal capacity l | max compression ratio | pressure bar | Temperature max c (°C) | Temperature min c (°C) |
|---|---|---|---|---|---|---|---|---|
| ACC 0.32LT | small diaphragm | 93 | 1.4 | 0.32 | 1:8 | 210 | 90 | -20 |
| ACC 0.75LT | small diaphragm | 120 | 2.6 | 0.75 | 1:8 | 210 | 90 | -20 |
| ACC 1.4LT | small diaphragm | 150 | 4.9 | 1.4 | 1:6 | 250 | 90 | -20 |
| ACC 2.8LT | small diaphragm | 174 | 10.8 | 2.8 | 1:4 | 250 | 90 | -20 |
Bladder accumulator exact model specification.
Bladder accumulator gas volume, labelled dimensions, connection, flow and mass for each exact model. Standard listed selection: forged-steel body,350 bar maximum pressure,230 bar maximum nitrogen precharge and−20°C to +80°C. Maximum precharge is a design limit; operating precharge must suit the circuit. Material grade and standard bladder compound require confirmation; optional high-pressure or seal executions are separate configurations.
| Part code | Accumulator type | Body material | Dimension b mm | Dimension ch mm | Dimension d mm | Dimension h mm | Hydraulic connection | Mass kg | Max flow l min (L/min) | Max nitrogen precharge bar | Max pressure bar | nitrogen volume l | Temperature max c (°C) | Temperature min c (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ACC HB1 | bladder | forged steel; grade not stated | 52 | 36 | 114 | 295 | 3/4 BSP female | 4.5 | 220 | 230 | 350 | 1 | 80 | -20 |
| ACC HB1.5 | bladder | forged steel; grade not stated | 52 | 36 | 114 | 357 | 3/4 BSP female | 5.5 | 220 | 230 | 350 | 1.5 | 80 | -20 |
| ACC HB2.5 | bladder | forged steel; grade not stated | 63 | 50 | 114 | 520 | 1-1/4 BSP female | 12 | 220 | 230 | 350 | 2.5 | 80 | -20 |
| ACC HB4.5 | bladder | forged steel; grade not stated | 63 | 50 | 168 | 410 | 1-1/4 BSP female | 16 | 400 | 230 | 350 | 4 | 80 | -20 |
| ACC HB6 | bladder | forged steel; grade not stated | 63 | 50 | 168 | 505 | 1-1/4 BSP female | 19.5 | 350 | 230 | 350 | 6 | 80 | -20 |
| ACC HB10 | bladder | forged steel; grade not stated | 63 | 50 | 168 | 775 | 1-1/4 BSP female | 36 | 300 | 230 | 350 | 10 | 80 | -20 |
| ACC-HB10/2 | bladder | forged steel; grade not stated | 100 | 70 | 223 | 550 | 2 BSP female | 48 | 630 | 230 | 350 | 10 | 80 | -20 |
| ACC HB20 | bladder | forged steel; grade not stated | 100 | 70 | 223 | 870 | 2 BSP female | 53 | 600 | 230 | 350 | 18.5 | 80 | -20 |
| ACC HB25 | bladder | forged steel; grade not stated | 100 | 70 | 223 | 1030 | 2 BSP female | 62 | 570 | 230 | 350 | 24.9 | 80 | -20 |
| ACC HB35 | bladder | forged steel; grade not stated | 100 | 70 | 223 | 1400 | 2 BSP female | 84 | 540 | 230 | 350 | 33.5 | 80 | -20 |
| ACC HB50 | bladder | forged steel; grade not stated | 100 | 70 | 223 | 1900 | 2 BSP female | 115 | 500 | 230 | 350 | 49 | 80 | -20 |
Accumulator mounting clamp labelled dimensions.
Accumulator clamp size ranges and labelled mounting dimensions. Confirm the original mounting drawing, material, fasteners and supported load. The clamp code is a size identifier, not a pressure rating.
| Part code | Dimension a mm | Dimension b mm | Dimension h mm | Dimension i mm | Dimension p max mm | Dimension p mm | Dimension s max mm | Dimension s min mm | Part type |
|---|---|---|---|---|---|---|---|---|---|
| ACC CLAMP 92MM | 156 | 50 | 9 | 17 | 136 | 100 | 101 | 92 | accumulator clamp |
| ACC CLAMP114MM | 156 | 50 | 9 | 17 | 136 | 100 | 117 | 109 | accumulator clamp |
| ACC CLAMP125MM | 156 | 50 | 9 | 17 | 136 | 100 | 126 | 117 | accumulator clamp |
| ACC CLAMP168MM | 156 | 50 | 9 | 17 | 136 | 100 | 169 | 158 | accumulator clamp |
| ACC CLAMP180MM | 156 | 50 | 9 | 17 | 136 | 100 | 194 | 180 | accumulator clamp |
| ACC CLAMP219MM | 156 | 50 | 9 | 17 | 136 | 100 | 222 | 209 | accumulator clamp |
| ACC CLAMP240MM | 156 | 50 | 9 | 17 | 136 | 100 | 246 | 235 | accumulator clamp |
| ACC CLAMP250MM | 156 | 50 | 9 | 17 | 136 | 100 | 259 | 248 | accumulator clamp |