Use our online accumulator volume sizing calculator to determine optimal capacity.
Open Volume Calculator →Compared with rubber diaphragms and metal pistons used as internal gas–liquid separation elements in accumulators, metal bellows offer superior gas tightness. For pressurized nitrogen service, their intrinsic nitrogen permeability is virtually zero. Leveraging this property, high-pressure metal‑bellows accumulators are well suited for applications where replenishing nitrogen is challenging, such as subsea ROV systems, underwater unmanned vehicles, hydraulic control systems within spacecraft cabins, and ultra‑compact vibration‑damping accumulators in vehicles.
Contact Schwerll engineering sales directly for custom volume sizing, pressure ratings (up to 207 MPa), and volume pricing.
Metal‑bellows accumulators use a metal bellows as the gas–liquid barrier, effectively reducing the inherent permeability of rubber components and making them suitable for applications with extremely low permeation requirements.
