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High-pressure hydraulically controlled system with a piston accumulator for the inlet valve

In a hydraulic circuit with multiple accumulators connected in parallel, if one bladder ruptures, will the other accumulators experience any change in volume?

Accumulators are intriguing components in hydraulic systems, analogous to capacitors in electrical circuits or springs in mechanical systems. As critical energy‑storage elements, they serve a variety of sophisticated functions, including hybrid‑power applications, shock absorption, pressure stabilization (and sometimes flow‑rate regulation), and the rapid release of stored energy to simulate impacts.

2024

Is a bladder-type accumulator suitable for use in series with gas cylinders or cylinder banks?

1. Bladders typically have a shorter service life than piston‑type accumulators, and their quality varies significantly among different manufacturers. 2. Many factors can shorten a bladder’s lifespan and lead to rupture, including variations in the bladder’s intrinsic quality and durability; improper handling during assembly (e.g., failure to pre‑fill with fluid for lubrication); incorrect procedures during pre‑charging (e.g., insufficiently slow inflation); errors in calculating the pre‑charge pressure; oil‑port flow velocities approaching or exceeding 7 m/s; single‑stroke reciprocation times of 10 seconds or less when used for energy storage; collisions between the bladder and check valves during operation; large temperature fluctuations (including significant seasonal differences); prolonged lateral vibration; fluid‑induced corrosion; and inertial impacts from minute solid contaminants in the working medium, among others.

2024

SCHWERLL Beijing has reached a strategic cooperation intention with the state-owned enterprise General TianDuan.

SCHWERLL Corporation has reached an intention of cooperation with the state‑owned enterprise General TianDuan to jointly develop a new, high‑flow, specialized forming product module, working together to research and develop a high‑speed, high‑flow power‑supply system suitable for shaping both metals and composite materials.

2024

SCHWERLL Fluid Control (Beijing) Co., Ltd. has successfully completed the ASME system recertification process.

Xivier Beijing has completed the recertification and upgrade to the 2023 edition of ASME Section VIII, Division 1, continuing to deliver high‑quality products and services across the scope of ASME standards.

2024

SCHWERLL Fluid Control (Beijing) Co., Ltd. over 10-meter cylinder processing line has completed commissioning and acceptance testing.

Power source for the wave compensation and extrusion system of the Seville marine platform. A wave compensation three-chamber cylinder or accumulator with a volume exceeding 1000L is required. To ensure product quality and pressure vessel safety, Seville upgraded the production line of the Beijing company in mid-2024, adding a deep-hole machining production line with a workpiece length of 11m.

2024

SCHWERLL has won the bid for the large piston accumulator system of Danieli JiuLi Group’s steel extrusion press.

In August 2025, SCHWERLL won the bid to supply a large‑scale piston accumulator system for the Zhejiang Jiuli Special Materials Steel Extrusion Press project, which is being undertaken as a general contract by Italy’s Danieli Group. The system comprises n individual 750‑liter piston accumulators and a single 3,200‑liter pressure vessel gas tank. Upon completion, the project will enable hot extrusion forming of ultra‑hard special alloy materials. With an installation height approaching 10 meters, Schwerll’s piston accumulator system features product dimensions that meet these demanding specifications. Schwerll is responsible for the complete design, fabrication, on‑site installation guidance, and commissioning of this large‑scale piston accumulator system.

2025

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Schwerll Fluid Control (Beijing) Co., Ltd.

Mobile: 0086 18201267391

Email: schwerlltec@schwerll.com.cn

Address: Building 39B, Floor 1, No. 16, Huanke Zhong Road, Tongzhou Park, Zhongguancun Science and Technology Park, Tongzhou District, Beijing

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