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.
Imported leather and professionally manufactured diaphragms are used. The diaphragm shape and structure are designed using simulation to ensure reasonable compression and expansion characteristics. The diaphragm is made of all-natural rubber to ensure the best rubber properties. The diaphragm uses the most widely used adhesive integral molding process to ensure stable compression and oil discharge deformation characteristics, and high oil discharge stability. The diaphragm uses a special rubber adhesive to ensure the use characteristics after bonding. Diaphragm bags all strictly pass NF ISO 37 and other standard tests. A variety of rubber materials ensure more media adaptability. Low inherent permeability of rubber.
