Tobul Bladder Accumulators

Tobul Diaphragm Accumulators

The typical bladder accumulator makes use of the considerable differences in the relative compressibility between a gas and a fluid. A typical design consists of a gas proof elastomer membrane enclosed within a steel shell. The membrane contains compressed gas (normally dry nitrogen) and separates the gas from the hydraulic fluid. The compressed gas provides a pneumatic spring action to force stored hydraulic fluid from the accumulator into the system as needed.

Diaphragm Accumulators

Tobul Diaphragm Accumulators are designed for industrial & mobile equipment applications that demand lightweight and high strength performance. Diaphragm accumulators are used for a variety of applications including: energy storage, shock or pulsation dampening, leakage compensation, thermal expansion, energy conservation/supplement pump flow, noise reduction, and improved response time.


  • Low Permeation
  • Durable Poppet Valve
  • Metal Diaphragm Clamping Ring
  • Extended Maintenance Intervals
  • Wide Temperature Range
  • Light Weight

Tobul’s Diaphragm Accumulators are an integral part of a fluid energy control system for industrial & mobile hydraulic systems in Agricultural & Construction Equipment, Factory Automation & Robotics, Machine Tool, and Power Generation.

Tobul designs and produces accumulators with high strength alloys & proprietary compounds for extreme duty, superior performance, reliability and longer service life.