Accumulators

Low Pressure Hydraulic Bladder Accumulator SB

• Nominal Volume : 2.5 to 450 litre
• Pressure Range : 16 / 35 / 40 bar options
• Standard Temperature Range : 10°C to +80°C

The HYDAC Low Pressure Hydraulic Bladder Accumulator SB is designed to meet the demands of a wide range of hydraulic applications, offering reliable and efficient performance. Available in nominal volumes from 2.5 to 450 litres, this accumulator is engineered to operate within pressure ranges of 16, 35 and 40 bar - making it versatile and adaptable for various systems.

Accumulator charging valves DLHSD / DLHSR for manifold or inline mounting

• Operating pressure: min. 0 to max. 350 bar
  max. 10 bar across tank port T
• Nominal flow: max. 30 l/min

The HYDAC Accumulator Charging Valves DLHSD (manifold) and DLHSR (inline) offer reliable recharging of accumulators up to 350 bar, with minimal leakage and built-in check valves for easy installation. Compact and efficient, they feature adjustable switch-off pressures and low pressure drop, ensuring full accumulator capacity and seamless integration into hydraulic systems.

Accumulator consoles KBK / KHF / KMS

• for SB: V = 1.0 ... 50 l
• for SK: Øi 80-355mm
• for SBO screwed

HYDAC Supports offer a safe and straightforward solution for installing all types of hydraulic accumulators, regardless of position or location. Available as clamps, consoles, or complete accumulator sets, they ensure secure mounting across a wide range of applications. Designed for static use, with special options available for dynamic loads on request

Pulsation dampers threaded types SBO

• V = 0.2 ... 4 l
• p =10 ... 500 bar

The HYDAC SBO Threaded Pulsation Damper (0.2–4 L, 10–500 bar) effectively reduces pipe vibrations, pressure spikes, and flow irregularities in hydraulic systems. Designed for use with displacement pumps and sensitive instrumentation, it helps prevent damage, lowers noise levels, and improves the performance of valves, machine tools, and measuring devices. Its threaded connection allows easy installation, extending system life while reducing maintenance and servicing costs.

Series SK280 piston accumulators are manufactured and tested to PE D 97/23/EC

• Standard 280 bar
• Temperature range: -30 °C ... +80 °C
• Higher pressures on request

The HYDAC SK280 Piston Accumulator is a compact, lightweight energy storage solution rated for 280 bar and tested to PED 97/23/EC standards. Designed with a finely machined cylinder, floating piston, and dual guide rings, it ensures durability, minimal installation space, and reliable performance in temperatures from -30 °C to +80 °C. Integrated features like a standard M28x1.5 gas valve and endurance testing make it ideal for demanding hydraulic applications.

High pressure hydraulic bladder accumulator SB

• Nominal Volume : 1 to 54 litre
• Pressure Range:  690 bar
• Standard Temperature Range : 10°C to +80°C

Engineered for demanding hydraulic systems, the HYDAC SB Series offers reliable energy storage with a nominal volume of 1 to 54 litres and pressure capacity up to 690 bar. Built with a high-tensile chrome molybdenum steel shell, it features corrosion protection options for harsh or offshore environments.

Charging and testing blocks F+P are used to charge and test back-up type hydraulic accumulators

• Max. operating pressure: up to 400 bar
• Nominal size: DN16 / DN32

The HYDAC Charging and Testing Block F+P (DN16/DN32, up to 400 bar) is designed for charging and testing back-up type hydraulic accumulators. With ports for FPU-1 units and pressure gauges, it offers optimized dimensions, optional integration of a GSV6 gas safety valve, and shut-off capability for nitrogen bottles ensuring safe, efficient system operation.

Accumulator rubber support rings G

• for consoles - SB

HYDAC Rubber Support Rings G are designed for secure and vibration-dampening installation of SB series hydraulic accumulators on consoles. They provide a simple, reliable mounting solution that accommodates various installation positions and conditions. As part of HYDAC’s comprehensive support range, they enhance system stability and reduce mechanical stress on accumulator components.

Suction flow stabilisers SB...S

• V = 12 ... 400 l
• pmax = 40 bar

The HYDAC Suction Flow Stabiliser ensures smooth pump operation by improving NPSH, preventing cavitation, and reducing pipe oscillations. Designed for piston and diaphragm pumps in utilities, chemical processing, and reactor systems, it uses a baffled, welded steel or stainless-steel vessel with an internal bladder to dampen pulsations and separate air. Installed vertically near the pump inlet, it enhances reliability and protects against costly system damage.

HYDAC Piston Accumulators with Position Indicator offer reliable energy storage with integrated piston position monitoring for enhanced system control and safety. Available with a range of detection options—including electrical limit switches, magnetic sensors, ultrasonic systems, and more—they provide real-time feedback for critical hydraulic applications. Optional safety devices protect against overpressure and temperature extremes, ensuring long-term durability and compliance.

Piston accumulators with position indicators can be equipped with different systems for monitoring the piston position in the piston accumulator.

Accuset SB

• Nominal Volume : 1 to 50 litre
• Pressure Range : 330 bar
• Temperature Range : 10°C to +80°C

The HYDAC Accuset SB is a compact, ready-to-install accumulator system combining a bladder accumulator, safety and shut-off block, and accumulator set for volumes from 1 to 50 litres and pressures up to 330 bar. Designed for easy integration, it simplifies installation, enhances safety, and reduces maintenance with built-in pressure protection, discharge, and accessory ports.

Nitrogen Charging Units N₂-Server

The HYDAC N2-Server Nitrogen Charging Units (mobile, portable, and stationary versions) enable fast, cost-effective charging of all HYDAC accumulator types up to 350 bar. Designed for efficient use of nitrogen bottles down to 20 bar residual pressure, they ensure quick filling or topping up of pre-charge pressure in bladder, diaphragm, and piston accumulators.