Calculate optimal nominal volume, operating pressure and N2 pre-charge using our certified sizing engine.
Open Volume Sizing Calculator →In a closed-loop hydraulic system, the return oil tank, being sealed and integrated into the system circuit, experiences pressure fluctuations due to entrained air. Therefore, the tank must be equipped with a buffer to ensure stable operation of the entire closed system.
Contact Schwerll engineering sales directly for custom volume sizing, pressure ratings, material compatibility and volume pricing.
Closed-type oil tank buffer structure:
Direct technical answers from Schwerll fluid power application engineers regarding Pressurized Reservoir Pulsation Damper.
The Pressurized Reservoir Pulsation Damper is engineered for standard industrial pressures of 10 MPa, 21 MPa, 31.5 MPa, with ultra-high pressure configurations available up to 42 MPa (and up to 207 MPa for specialized piston series).
Every Schwerll accumulator is designed, inspected, and validated against international safety and quality standards.
Complete Quality Management System certification across raw material testing, precision machining, honing, welding, and final FAT pressure testing.
ASME U-stamp and National Board (NB) registration available for high-pressure piston series (up to 30,000 PSI / 207 MPa) for North American & offshore deployment.
PED 2014/68/EU CE marking with Notified Body conformity declaration and 3.1 material test certificates for European Union export compliance.
Certified in compliance with China's TSG 21-2016 Special Equipment Safety Code and GB/T 20663-2017 national pressure vessel standards.
Approved configurations for CU-TR/EAC (Eurasian Union), NR13 (Brazil), AS1210 (Australia), KOSHA (Korea), and DOSH (Malaysia).
Support for client-mandated witness testing by SGS, Bureau Veritas (BV), Lloyd's Register (LR), TÜV Rheinland, Intertek, or DNV.
Provide system operating pressures (P1/P2/P0), effective gas volume, cycle frequency, hydraulic fluid type, and ambient temperature range.
Our engineering team performs adiabatic or isothermal gas calculation (incorporating real gas Z-factor compressibility for pressures >20 MPa).
We issue general arrangement (GA) drawings, nozzle/flange connection details, and formal commercial terms within 24–48 hours.
Deep hole honing (Ra ≤ 0.2 μm), ultrasonic testing (UT), magnetic particle inspection (MT), and 1.5× hydraulic proof pressure test.
Solid wooden crating with desiccants, rust preventative oil, and pre-charged N2 blanket. Incoterms: FOB Tianjin/Shanghai, CIF, or DAP.
