Crimped Piston Accumulators - ACP Series
Parker’s patented ACP Series of Crimped Piston Accumulators are ideal for industrial and mobile equipment, even in extreme climates. Rated up to 5000 PSI with a design factor of 4:1 or greater, these accumulators have been tested and proven at -40ºF/C or below.
Key advantages of the ACP Series include:
• Higher working-pressure ratings (3770/4000/5000 PSI) meet more applications with fewer sizes needed
• Piston design prevents sudden accumulator failure and is customized to fit the application
• Four bore sizes available for more capacity and price options
• Patented crimped end cap connections provide superior fatigue life compared with welded designs
• “Schrader” style gas valve (industry standard) fits existing charging equipment
• Multiple hydraulic port sizes accommodate a wider range of fittings and mounting options
• Low gas permeation compared to similar products
• Unlimited compression ratio
The durability and ruggedness of the ACP Series Crimped Piston Accumulator helps distinguish it from traditional diaphragm accumulators:
• High-strength, compact steel shell and cap material. Steel shell allows heat to dissipate effectively and is micro-finished for extended seal life.
• Lightweight piston design allows for fast response to reduce system shock in rapid cycling applications.
• Piston seal’s unique, patented five-bladed V-O-ring with back-up washers eliminates seal roll-over and ensures total separation of fluid and gas (40mm size incorporates a T-seal with energized PTFE piston ring). Extreme Seal - Mobile also available.
• PTFE glide rings eliminate metal-to-metal contact between tube and piston, reducing wear and extending service life.
• Patented crimped design provides high-strength coupling of caps to steel tube plus superior fatigue life versus welded type connections.
• “Schrader” style gas valve is standard on all ACP accumulators for ease of precharging.
• Gas valve cap protects valve and serves as secondary seal.
• Knurled cap design allows easy installation without tools.
• Port types are available in a wide range of female sizes in both SAE and BSPP styles. Male ports also available.
The ACP Series of Crimped Piston Accumulators are designed to meet or exceed CSA/CE/ASME standards and includes the following certifications:
• Europe – PED (CE)
• Australia – ADRN (AS1210)
• Canada – CSA (CRN)
• Others available, please contact ACD
Parker’s seal compounds are compatible with a wide variety of fluids. Standard accumulators (with nitrile seals) may be used with petroleum-based industrial oils or water-based, flame resistant fluids. Optional seals compatible with most industrial fluids are available with temperature ranges from -45ºF to 320ºF (-43ºC to 160ºC). A brief overview of Parker seal options include:
• Seal Code K (made from Buna-Nitrile) has a recommended operating temperature range of - 20°F to 165°F (-29°C to 74°C). This is Parker’s standard compound and is compatible with most mineral oil-based fluids.
• Seal Code E (made from Fluorocarbon Elastomer) has a recommended operating temperature range of -10°F to 250°F (-23°C to 121°C). This option maintains sealing effectiveness at high temperatures. It is compatible with most mineral oil-based fluids and some exotic fluids.
• Seal Code H (made from Hydrogenated Nitrile) has a recommended operating temperature range of -25°F to 320°F (-32°C to 160°C). This option maintains sealing effectiveness at low to very high temperatures. It is compatible with most mineral oil-based and biodegradable fluids.
• Seal Code Q (made from Low Temperature Nitrile) has a recommended operating temperature range of -45°F to 185°F (-43°C to 85°C). This option maintains sealing effectiveness at low temperatures. It is compatible with most mineral oil-based fluids.
• Seal Code X (our Extreme Seal for mobile applications) has a recommended operating temperature range of -40°F to 250°F (-40°C to 121°C). This option maintains sealing effectiveness at a wide range of temperatures. This option is the best choice for high performance applications with high speed or pressure dithering. It is compatible with most oil-based and biodegradable fluids.
Please consult your local Parker-Hannifin distributor for fluid compatibility information. The temperatures listed indicate the operating temperature range of the seals, not the accumulator.
Piston accumulators provide a means of regulating the performance of a hydraulic system. They are excellent for storing energy under pressure, absorbing hydraulic shocks, and dampening pump pulsation and flow fluctuations. The simple, compact, cylindrical design of piston accumulators ensures dependable performance, maximum efficiency, and long service life.
Why Use Piston Accumulators?
• Improves System Efficiency
• Supplements Pump Flow
• Supplies Power in Emergency
• Compensates for Leakage
• Absorbs Hydraulic Shocks
• Wide Range of Sizes
• Lower Gas Permeation Rate
• Extremely High-flow Rates
• High/Low Temperature Tolerance
• High Compression Ratios
• Can Be Used With Remote Gas Bottles
• Can Be Mounted in Any Position
• Failure Mode Is Gradual, Predictable
• Less Maintenance
Parker Piston Accumulators… Your #1 Choice!
Parker is the leading manufacturer of piston accumulators in North America.
Parker’s broad offering includes:
• Piston Accumulators for 3770, 4000, and 5000 PSI
• A Wide Array of Options and Accessories
Best in Class Capabilities
• Over 40 types of seal combinations provide compatibility with any fluid and application
• Wide variety of stainless steel and alternative material options
• Extreme temperatures, certified product to -40°F
• Many surface coatings, including epoxies, CARC paints, electroless nickel plating
• Accumulators custom designed for the most demanding markets and global locations
• DOT shipping exemptions for pre-charged vessels
Features:
• “Fatigue Tested” Designs, 1 1/2" thru 4" Bores
• V-O-ring Piston Seals Standard
• Five Standard Seal Options to Handle a Variety of Fluids and Temperatures (Others available)
• Temperature Ranges -40° to 320°F
Design Features and Benefits
1. Piston type accumulators are designed with compact, rugged steel shell and caps. The steel shell allows heat to dissipate effectively. The bore is micro-finished for extended seal life.
2. The standard piston seal consists of a unique, five-bladed V-O-ring with back-up washers. This design eliminates seal roll-over and ensures total separation of fluid and gas under the most severe operating conditions. The V-O-ring also holds full pressure throughout long idle periods between cycles, providing dependable, full pressure storage of hydraulic energy. It ensures safe, reliable absorption of pressure peaks. The piston seal design helps to prevent sudden failure of the accumulator. The V-O-ring seals are available in a wide variety of compounds to cover a broad range of fluids and operating temperature ranges (see Seal Material Options).
3. The lightweight piston design allows fast response to reduce shock in rapid cycling applications. Some pistons utilize a dished profile to provide extra gas capacity and greater useable volume of fluid.
4. PTFE glide rings eliminate metal-to-metal contact between the tube and piston, reducing wear and extending service life.
5. All piston accumulators are fitted with a standard designed gas valve for ease of gas pre-charging.
7. A wide range of port types and sizes are available. SAE straight thread are fitted as standard. BSPP is a standard option.
Materials
• Shell – high strength alloy steel
• Caps – steel
• Pistons – aluminum (standard), ductile iron (special option)
• Gas Valve Cartridge – steel
• Piston Glide Rings – PTFE
• Piston & End Seals – various polymers
• Piston Seal Backups – PTFE
Fluids
Parker’s piston accumulators are compatible with a wide variety of fluids. Standard accumulators (with nitrile seals) may be used with petroleum-based industrial oils or water-based flame resistant fluids. Optional seals compatible with most industrial fluids are available with temperature ranges from -40°F to 320°F (-40°C to 160°C).
Precharge
Units are shipped with a nominal nitrogen precharge as standard. For specific precharge pressures, specify at the time of order.
Standard Ports - 2000 & 3000psi rated
Available Options
If your application requires a piston accumulator or special option that falls outside of Parker’s broad offering, consult your local distributor, Parker representative, or the factory with your specific requirements. Parker has the manufacturing and engineering expertise to design and build piston accumulators to your exacting requirements, from simple modifications of standard units to complete designs.
Some examples of Parker’s custom designs include:
• Non-Standard Capacities
• Extreme Temperatures
• Special Ports
• Special Seals
• Special Certifications
Mounting, Charging & Gauging Accessories
Parker offers a wide variety of mounting, charging and gauging accessories. A variety of mounting brackets and U-bolts are available.
Markets
• Aerial Lift Equipment
• Agriculture Machinery
• Construction Equipment
• Forestry Equipment
• Mining Equipment
• Hybrid Vehicle Systems
• Material Handling Equipment
• Transportation
• Turf Equipment
• Vocational Equipment and Special Use Work Vehicles
• Hydraulic Power Units (HPU)
• Lubrication Systems
• Plastics Machinery
• Injection Molding Equipment
• Rubber Molding Equipment
Parker’s Accumulator & Cooler Division engineers have extensively researched and fully understand these pressure vessel codes. From North America to Europe, our experts are ready and able to help you avoid the many costly and time consuming pitfalls you didn’t see coming. Furthermore, ACD can provide the global accumulator certifications you need.
Accumulators are pressure vessels that are subject to safety laws, regulations, and ordinances that are valid in the state or country of installation. Other particular regulations must be observed in certain industries such as mining, shipbuilding and aircraft. This brief will discuss the two fundamental design codes and several of the most common certifications. Since many more certifications exist, we recommend contacting Parker’s Accumulator & Cooler Division engineers to ensure proper conformance to those standards.
Key advantages of the ACP Series include:
• Higher working-pressure ratings (3770/4000/5000 PSI) meet more applications with fewer sizes needed
• Piston design prevents sudden accumulator failure and is customized to fit the application
• Four bore sizes available for more capacity and price options
• Patented crimped end cap connections provide superior fatigue life compared with welded designs
• “Schrader” style gas valve (industry standard) fits existing charging equipment
• Multiple hydraulic port sizes accommodate a wider range of fittings and mounting options
• Low gas permeation compared to similar products
• Unlimited compression ratio
The durability and ruggedness of the ACP Series Crimped Piston Accumulator helps distinguish it from traditional diaphragm accumulators:
• High-strength, compact steel shell and cap material. Steel shell allows heat to dissipate effectively and is micro-finished for extended seal life.
• Lightweight piston design allows for fast response to reduce system shock in rapid cycling applications.
• Piston seal’s unique, patented five-bladed V-O-ring with back-up washers eliminates seal roll-over and ensures total separation of fluid and gas (40mm size incorporates a T-seal with energized PTFE piston ring). Extreme Seal - Mobile also available.
• PTFE glide rings eliminate metal-to-metal contact between tube and piston, reducing wear and extending service life.
• Patented crimped design provides high-strength coupling of caps to steel tube plus superior fatigue life versus welded type connections.
• “Schrader” style gas valve is standard on all ACP accumulators for ease of precharging.
• Gas valve cap protects valve and serves as secondary seal.
• Knurled cap design allows easy installation without tools.
• Port types are available in a wide range of female sizes in both SAE and BSPP styles. Male ports also available.
The ACP Series of Crimped Piston Accumulators are designed to meet or exceed CSA/CE/ASME standards and includes the following certifications:
• Europe – PED (CE)
• Australia – ADRN (AS1210)
• Canada – CSA (CRN)
• Others available, please contact ACD
Parker’s seal compounds are compatible with a wide variety of fluids. Standard accumulators (with nitrile seals) may be used with petroleum-based industrial oils or water-based, flame resistant fluids. Optional seals compatible with most industrial fluids are available with temperature ranges from -45ºF to 320ºF (-43ºC to 160ºC). A brief overview of Parker seal options include:
• Seal Code K (made from Buna-Nitrile) has a recommended operating temperature range of - 20°F to 165°F (-29°C to 74°C). This is Parker’s standard compound and is compatible with most mineral oil-based fluids.
• Seal Code E (made from Fluorocarbon Elastomer) has a recommended operating temperature range of -10°F to 250°F (-23°C to 121°C). This option maintains sealing effectiveness at high temperatures. It is compatible with most mineral oil-based fluids and some exotic fluids.
• Seal Code H (made from Hydrogenated Nitrile) has a recommended operating temperature range of -25°F to 320°F (-32°C to 160°C). This option maintains sealing effectiveness at low to very high temperatures. It is compatible with most mineral oil-based and biodegradable fluids.
• Seal Code Q (made from Low Temperature Nitrile) has a recommended operating temperature range of -45°F to 185°F (-43°C to 85°C). This option maintains sealing effectiveness at low temperatures. It is compatible with most mineral oil-based fluids.
• Seal Code X (our Extreme Seal for mobile applications) has a recommended operating temperature range of -40°F to 250°F (-40°C to 121°C). This option maintains sealing effectiveness at a wide range of temperatures. This option is the best choice for high performance applications with high speed or pressure dithering. It is compatible with most oil-based and biodegradable fluids.
Please consult your local Parker-Hannifin distributor for fluid compatibility information. The temperatures listed indicate the operating temperature range of the seals, not the accumulator.
Piston accumulators provide a means of regulating the performance of a hydraulic system. They are excellent for storing energy under pressure, absorbing hydraulic shocks, and dampening pump pulsation and flow fluctuations. The simple, compact, cylindrical design of piston accumulators ensures dependable performance, maximum efficiency, and long service life.
Why Use Piston Accumulators?
• Improves System Efficiency
• Supplements Pump Flow
• Supplies Power in Emergency
• Compensates for Leakage
• Absorbs Hydraulic Shocks
• Wide Range of Sizes
• Lower Gas Permeation Rate
• Extremely High-flow Rates
• High/Low Temperature Tolerance
• High Compression Ratios
• Can Be Used With Remote Gas Bottles
• Can Be Mounted in Any Position
• Failure Mode Is Gradual, Predictable
• Less Maintenance
Parker Piston Accumulators… Your #1 Choice!
Parker is the leading manufacturer of piston accumulators in North America.
Parker’s broad offering includes:
• Piston Accumulators for 3770, 4000, and 5000 PSI
• A Wide Array of Options and Accessories
Best in Class Capabilities
• Over 40 types of seal combinations provide compatibility with any fluid and application
• Wide variety of stainless steel and alternative material options
• Extreme temperatures, certified product to -40°F
• Many surface coatings, including epoxies, CARC paints, electroless nickel plating
• Accumulators custom designed for the most demanding markets and global locations
• DOT shipping exemptions for pre-charged vessels
Features:
• “Fatigue Tested” Designs, 1 1/2" thru 4" Bores
• V-O-ring Piston Seals Standard
• Five Standard Seal Options to Handle a Variety of Fluids and Temperatures (Others available)
• Temperature Ranges -40° to 320°F
Design Features and Benefits
1. Piston type accumulators are designed with compact, rugged steel shell and caps. The steel shell allows heat to dissipate effectively. The bore is micro-finished for extended seal life.
2. The standard piston seal consists of a unique, five-bladed V-O-ring with back-up washers. This design eliminates seal roll-over and ensures total separation of fluid and gas under the most severe operating conditions. The V-O-ring also holds full pressure throughout long idle periods between cycles, providing dependable, full pressure storage of hydraulic energy. It ensures safe, reliable absorption of pressure peaks. The piston seal design helps to prevent sudden failure of the accumulator. The V-O-ring seals are available in a wide variety of compounds to cover a broad range of fluids and operating temperature ranges (see Seal Material Options).
3. The lightweight piston design allows fast response to reduce shock in rapid cycling applications. Some pistons utilize a dished profile to provide extra gas capacity and greater useable volume of fluid.
4. PTFE glide rings eliminate metal-to-metal contact between the tube and piston, reducing wear and extending service life.
5. All piston accumulators are fitted with a standard designed gas valve for ease of gas pre-charging.
7. A wide range of port types and sizes are available. SAE straight thread are fitted as standard. BSPP is a standard option.
Materials
• Shell – high strength alloy steel
• Caps – steel
• Pistons – aluminum (standard), ductile iron (special option)
• Gas Valve Cartridge – steel
• Piston Glide Rings – PTFE
• Piston & End Seals – various polymers
• Piston Seal Backups – PTFE
Fluids
Parker’s piston accumulators are compatible with a wide variety of fluids. Standard accumulators (with nitrile seals) may be used with petroleum-based industrial oils or water-based flame resistant fluids. Optional seals compatible with most industrial fluids are available with temperature ranges from -40°F to 320°F (-40°C to 160°C).
Precharge
Units are shipped with a nominal nitrogen precharge as standard. For specific precharge pressures, specify at the time of order.
Standard Ports - 2000 & 3000psi rated
Available Options
If your application requires a piston accumulator or special option that falls outside of Parker’s broad offering, consult your local distributor, Parker representative, or the factory with your specific requirements. Parker has the manufacturing and engineering expertise to design and build piston accumulators to your exacting requirements, from simple modifications of standard units to complete designs.
Some examples of Parker’s custom designs include:
• Non-Standard Capacities
• Extreme Temperatures
• Special Ports
• Special Seals
• Special Certifications
Mounting, Charging & Gauging Accessories
Parker offers a wide variety of mounting, charging and gauging accessories. A variety of mounting brackets and U-bolts are available.
Markets
• Aerial Lift Equipment
• Agriculture Machinery
• Construction Equipment
• Forestry Equipment
• Mining Equipment
• Hybrid Vehicle Systems
• Material Handling Equipment
• Transportation
• Turf Equipment
• Vocational Equipment and Special Use Work Vehicles
• Hydraulic Power Units (HPU)
• Lubrication Systems
• Plastics Machinery
• Injection Molding Equipment
• Rubber Molding Equipment
Parker’s Accumulator & Cooler Division engineers have extensively researched and fully understand these pressure vessel codes. From North America to Europe, our experts are ready and able to help you avoid the many costly and time consuming pitfalls you didn’t see coming. Furthermore, ACD can provide the global accumulator certifications you need.
Accumulators are pressure vessels that are subject to safety laws, regulations, and ordinances that are valid in the state or country of installation. Other particular regulations must be observed in certain industries such as mining, shipbuilding and aircraft. This brief will discuss the two fundamental design codes and several of the most common certifications. Since many more certifications exist, we recommend contacting Parker’s Accumulator & Cooler Division engineers to ensure proper conformance to those standards.
