Use our online accumulator volume sizing calculator to determine optimal capacity.
Open Volume Calculator →SCHWERLL manufactures a series of standard piston accumulators in strict compliance with the certification requirements for special‑purpose equipment in major countries and regions worldwide. These accumulators are designed to withstand pressures of up to 200 MPa, with individual units offering nominal volumes of up to 1,500 L. They are suitable for applications involving high‑frequency transfer functions at frequencies of 200 Hz and above, with piston speeds reaching a maximum of 9 m/s. SCHWERLL’s piston accumulators are engineered for a wide range of demanding operating conditions and media, and the company provides specialized solutions tailored to fluids such as water‑glycol, phosphate ester, and mineral hydraulic oils.
Contact Schwerll engineering sales directly for custom volume sizing, pressure ratings (up to 207 MPa), and volume pricing.
Schwerll heavy-duty and extreme-pressure piston accumulators are engineered for mission-critical hydraulic energy storage, fluid pulsation suppression, and emergency system power. Our engineering capabilities span three defined performance tiers:
From material selection and manufacturing processes to compliance with industry standards and certifications, SCHWERLL’s high‑pressure piston accumulators meet the demanding requirements of rigorous industrial applications.
Schwerll high‑performance piston accumulators – Product range:
SAK Series: Complies with the requirements of China’s special equipment standards TSG 21-2016 and GBT 20663-2017, with a pressure rating up to 530 bar and a nominal volume ranging up to 825 L per unit. The products meet all certification requirements for installation and use in China, including: a factory manufacturing license, Chinese special equipment design qualification, product supervision and inspection certificates bearing the TS stamp, and product type‑test certificates.
ASME Series: Meets the requirements of U.S. standards and those of countries and regions that accept ASME Section VIII, Division 1; products comply with NB registration requirements and bear the U stamp; design pressure ratings range up to 10,000 psi, 15,000 psi, 20,000 psi, or 30,000 psi; nominal capacities range up to 1,500 L per vessel.
PED EU CE Series: Complies with the European Union’s PED EU CE product standards and those of countries and regions that accept them. Products meet CE certification and registration requirements, all bearing the CE marking. The design pressure range extends up to 690 bar, and the nominal volume ranges up to 1,500 L per unit.
Other series: SCHWERLL products comply with the pressure vessel certification requirements for special equipment in major countries worldwide, including:
• United States & Accepted Markets: ASME Section VIII Division 1 (U-Stamp & NB Registration available to 30,000 psi)
• European Union: PED 2014/68/EU (CE Marking)
• China: TSG 21-2016 (TS Stamp & Factory License)
• Australia: AS 1210 Compliance
• Brazil: NR-13 Regulatory Compliance
• EAEU / CIS: EAC Mark (CU-TR 032/2013)
• Marine & Offshore: Classification Society Certification (CCS, DNV, ABS, BV upon specification).
