HYDAC Diaphragm Accumulators – Compact Pressure Energy Storage for Hydraulic Systems
A diaphragm hydraulic accumulator provides compact, rapid-response energy storage for hydraulic systems by separating hydraulic fluid and nitrogen gas using a flexible diaphragm. This allows the accumulator to store and release pressurised fluid instantly — supporting system efficiency, pressure stability, and shock control.
As one of Western Australia’s leading hydraulic suppliers, Gerrard Hydraulics provides HYDAC diaphragm accumulators, including weld-type and screw-type formats, to match exact application, performance, and system certification requirements.
Whether you’re upgrading plant reliability, controlling pulsation, or compensating pressure loss — we supply the right diaphragm accumulator in hydraulic systems across WA mining, industrial and mobile machinery environments.
What a Diaphragm Accumulator Does in a Hydraulic System
A hydraulic diaphragm accumulator is used for:
- Energy Storage — supports pump output during peak demand
- Shock & Pulsation Dampening — reduces vibrational stress from pumps/valves
- Pressure Stabilisation — compensates for leakage & thermal volume changes
- Emergency Power Backup — ensures safe shutdown during power loss
- Fast Actuator Response — delivers sudden fluid flow for quick movement
- Barrier / Separation — prevents mixing of incompatible fluids
These benefits improve uptime, extend component life, and increase safety.
Where Diaphragm Accumulators Are Used
Compact design + rapid response make diaphragm accumulators ideal for:
Equipment & Machinery
- Braking and suspension systems (vehicles & mobile machines)
- Plastic and metal forming equipment
- Hydraulic power units (HPUs)
- Compact industrial automation
- Pump pulsation control systems
- Medical and food-grade processing equipment
Industries
- Mining & Construction machinery
- Agriculture — tractors & implements
- Automotive & Transport
- Manufacturing & Industrial Plants
- Marine & Offshore
- Medical & Food Grade Hydraulics
If your hydraulic system demands reliable pressure support in a small footprint, diaphragm accumulators are the best match.
Types of HYDAC Diaphragm Accumulators Available
We supply two main construction types:
✔ Weld-Type HYDAC Diaphragm Accumulators
- Compact format for fixed installation
- Rechargeable gas side or sealed configuration
- Strong reliability for long service life
✔ Screw-Type HYDAC Diaphragm Accumulators
- Fully serviceable — diaphragm can be replaced
- Forged steel sections with lock-nut assembly
- Ideal in high-cycle applications
Material, Protection & Mounting Options
- Standard steel or stainless steel for aggressive media
- Plastic or galvanic coatings where corrosion resistance is needed
- Mounting clamps / support consoles for vibration stability
- Installed vertical preferred in contaminated environments
Performance Specifications
- Operating Temperature: –10°C to +80°C (others on request)
- Gas Medium: Nitrogen only (high purity, Class 4.0+)
- Operating Pressure & Volume: Wide range based on model
- Compliance: PED & industrial safety standards when installed with HYDAC shut-off block
Why Choose HYDAC Diaphragm Accumulators?
- Rapid response — ideal for fast cycling systems
- Compact — easier integration in tight machinery
- Leak-resistant separation of fluid and gas
- Lower maintenance design with long service lifetime
Whether you need one replacement accumulator or consistent supply for fleet/service operations — we support both.
Download HYDAC Diaphragm Accumulator Brochure
Technical model charts, specifications and sizing tools available upon request.
(We can also provide the official HYDAC Accumulator Simulation Program—ASP—when required for engineering compliance.)
Perth’s Trusted Supplier of Hydraulic Diaphragm Accumulators
✔ Local WA engineering support
✔ Fast contactless delivery to mine sites & workshops
✔ HYDAC-approved accumulator distributors
✔ Expert matching for pressure, temperature & shock loads
Need Help Selecting the Right Accumulator Diaphragm?
Choosing the correct accumulator requires matching:
- Gas pre-charge pressure
- Maximum system pressure (p2)
- Required effective volume (p1–p2)
- Fluid compatibility & temperature
- Vibration and mounting considerations
Our hydraulic specialists assist with full specification checks for:
Mining | Construction | Industrial | Marine | Agriculture | OEM Service Teams
Talk to a HYDAC Diaphragm Accumulator Specialist
Looking for a diaphragm accumulator supplier in Perth?
We stock HYDAC diaphragm accumulators ready for dispatch or workshop fitment.
📍 39 Sorbonne Crescent, Canning Vale, Western Australia 6155
📞 (08) 9455 2344
✉ enquiries@gerrardhydraulics.com.au
