Bladder Accumulator

HYDAC Bladder Accumulators – Western Australia

Bladder accumulators (also known as bladder type hydraulic accumulators) are essential components in hydraulic systems requiring fast response, shock absorption, emergency pressure backup, and consistent pressure control.

As Perth’s trusted HYDAC accumulator distributors, Gerrard Hydraulics supplies and supports the full range of HYDAC bladder accumulators, including accumulator bladder replacement and complete service support for mining, industrial, agricultural, marine, and mobile hydraulic systems.

Whether you are sourcing a hydraulic accumulator for sale, downloading technical documentation, or confirming the correct accumulator in your hydraulic system, our team offers expert product selection and specification advice across Western Australia.

What a Bladder Accumulator Does

Because hydraulic fluid is not compressible, a gas-charged accumulator is needed to store and release pressure energy when required.

A HYDAC bladder accumulator contains:

• A nitrogen-filled bladder (gas section) 
• Hydraulic fluid acting against the bladder (fluid section) 
• A sealed shell to maintain separation and performance 

How it works:

• When system pressure rises → fluid compresses the bladder → energy is stored 
• When system pressure drops → compressed gas expands → energy is released back into the system 

Where Bladder Accumulators Are Used

HYDAC bladder accumulators are used in hydraulic systems requiring:

• Energy storage and auxiliary power 
• Emergency actuation in pump/power failure 
• Pulsation and shock dampening (hydraulic hammer) 
• Flow supplementation for rapid actuator response 
• Leakage and volume compensation 
• Vehicle & boom suspension systems 

Industries Using Bladder Type Accumulators

✔ Mining & Construction machinery
✔ Industrial manufacturing
✔ Oil & Gas, Marine & Offshore
✔ Agriculture & Automotive
✔ Energy & aerospace applications

These applications benefit from improved system reliability, safety, and reduced wear on pumps, hoses, and valves.

HYDAC Bladder Accumulator Product Range

We supply the full HYDAC portfolio — including spare parts and hydraulic accumulator bladder replacement:

SB330 / 400 / 500 / 550

Standard bladder accumulators, seamless pressure vessel construction — suitable for general industrial applications.

SB330N — Flow-Optimised Design

Supports higher operating flow rates up to 25 L/s.

SB330H — High-Flow Bladder Accumulator

Enlarged fluid port enabling 30 L/s flow for high-demand systems.

SB600 — High-Pressure Series

For up to 345 bar / 5000 psi with ASME U-stamp approvals.

SB330B — Maintainable Design

Bladder removal from above without removing accumulator from the system — ideal for:

• Inspection 
• On-site repair 
• Bladder replacement servicing 

Installation & Material Options

• Vertical installation recommended for optimal flow & usable volume 
• Horizontal/slanted mounting available with reduced flow considerations 
• Bladder materials selected for: 
  • Fluid compatibility 
  • Temperature conditions 
  • Avoiding cold cracking during rapid discharge 
• Corrosion-protected shells and stainless steel options available for aggressive fluids

Mounting clamps and inline installation adaptors available (up to 1L units).

Why Source Bladder Accumulators from Gerrard Hydraulics?

• Perth-based accumulator bladder suppliers supporting all WA industries 
• Large local stock of HYDAC bladder accumulators and spare bladders 
• Accumulator service, nitrogen charging & compliance support 
• Engineering-backed selection advice for: 
  • Correct bladder material 
  • System pressure & flow requirements 
  • Safety certifications and approvals 

We also supply hydraulic accumulator bladder replacement kits for existing systems.

Download Catalogue + Sizing Information

Download the HYDAC bladder accumulator brochure here.

Request a Quote

Looking for the correct hydraulic bladder accumulator for your system?
Contact our Perth team for availability, pricing, and technical support:

📍 39 Sorbonne Crescent, Canning Vale, Western Australia 6155
📞 (08) 9455 2344
✉️ enquiries@gerrardhydraulics.com.au

We proudly support fast supply and technical support across Perth and Western Australia.