As the dual-carbon goals advance, energy storage has become a core pillar of the new power system, widely deployed for grid-side peak shaving, user-side load shifting and renewable integration. But storage systems operate under complex conditions — high voltage, high temperature and continuous cycling — and the reliability of their core components (valves, liquid cooling systems, fire suppression pipework) directly determines system safety and service life. Ouxun Intelligent Technology (Taizhou) Co., Ltd., a specialist test bench manufacturer with deep experience in storage inspection, has built a full range of test equipment for storage applications based on industry standards and real-world pain points, supporting the safe and compliant deployment of storage systems.
1. Inspection Pain Points in Storage: Professional Test Equipment Becomes Essential
Safe operation of a storage system depends on rigorous inspection of its core components. The industry is growing fast, and liquid-cooled storage systems, storage containers and fire protection systems all face clear inspection standards and compliance requirements. Conventional methods no longer fit, and the pain points concentrate in three areas.
First, insufficient accuracy. Storage systems place very high demands on the flow control, differential pressure stability and sealing of valves (PICV, DPCV, safety valves). Conventional manual equipment has large errors and cannot meet the accuracy requirements of GB/T, EN and ISO standards, leaving safety risks. Second, low efficiency. As the storage industry scales up, demand for batch factory inspection of components has surged; conventional methods are slow and labour-intensive, cannot match production tempo, and constrain capacity. Third, poor scenario adaptability. Storage operating conditions are complex — high and low temperature, high pressure, cycling fatigue — and conventional benches cannot simulate the real operating environment, so test results diverge from actual performance and cannot effectively avoid operational risk.
Against this background, test benches designed for storage scenarios have become essential equipment for storage system integrators, core component manufacturers and third-party inspection bodies — both a key to product quality and an important support for meeting compliance requirements and strengthening competitiveness.
2. Ouxun Test Benches: Built for Storage, Covering the Whole Inspection Process
Matching the inspection requirements of core storage components, Ouxun focuses on two directions — valve inspection and liquid cooling system inspection — and, drawing on more than ten years of experience developing and manufacturing inspection equipment, has built a full series of professional test benches for storage: PICV benches, DPCV benches, safety valve benches and integrated liquid cooling benches, precisely matching storage application scenarios and covering the whole process from component factory inspection to system type testing.
Ouxun invests more than 15% of annual revenue in R&D, maintains a high-level team of PhD and MSc engineers and cooperates closely with several universities. Backed by multiple patents and software copyrights, its benches have distinct technical advantages in three respects.
(1) Precisely matched to core storage components and real operating conditions
For the valves and liquid cooling components most widely used in storage, Ouxun has optimised its benches specifically, adapting them to the particular requirements of storage and resolving the poor scenario adaptability of conventional equipment.
1. Valve benches (PICV / DPCV / safety valve). For the core valves in storage liquid cooling, fire protection and piping systems, Ouxun has applied dedicated technical optimisation. The central feature is imported high-precision sensors with an accuracy class well beyond 0.3%, enabling more precise parameter measurement and completely resolving the large errors and non-compliance of conventional manual equipment. The PICV bench measures the differential-pressure compensation performance of pressure-independent control valves precisely, verifying flow holding accuracy ≤±5% across a differential pressure range of 10–300 kPa, matching the core requirement of stable flow control in storage liquid cooling. The DPCV bench focuses on the differential-pressure holding accuracy of differential pressure control valves, simulating inlet pressure fluctuation in a storage system to hold outlet/load-side differential pressure within ±2% to ±5%, keeping liquid cooling and piping systems stable. The safety valve bench measures set pressure, reseat pressure and sealing precisely to meet the safety requirements of high-pressure storage piping and fire protection systems, eliminating leakage and spurious lifting. All of them can be customised to the customer’s specific size and pressure requirements to suit different storage scenarios.
2. Integrated liquid cooling bench. Built specifically for storage liquid cooling systems (cold plates, CDU coolant distribution units, liquid cooling piping), this bench incorporates Ouxun’s own operating-condition simulation technology and performs flow characteristics, differential pressure control, tightness and leak detection in a single station. It accurately simulates the high and low temperature conditions of storage operation (−10 °C to 95 °C), matching the real operating environment of storage liquid cooling and resolving the disconnect between test results and actual performance. A visual operator interface presents test data and curves in real time for straightforward analysis, and supports rapid identification of leaks, abnormal flow and other faults, ensuring the cooling efficiency and sealing reliability of liquid cooling components — a level of technology well recognised by industry specialists.
(2) Standards compliance for inspection validity
All Ouxun storage benches follow the relevant storage industry standards, including GB/T 13927, ISO 14723, IEC 60534 and EN 1267, and carry CE certification, giving greater assurance for equipment export. They meet the compliance requirements of component factory inspection, type testing and third-party certification directly, helping customers obtain CNAS accreditation.
During testing, the PLC plus supervisory PC automatic acquisition and control system collects data and generates standardised test reports automatically, exportable as PDF for archiving, review and customer acceptance — helping companies meet compliance requirements quickly and lowering the market access threshold. The Ouxun safety valve bench, for example, is designed strictly to GB/T 12241-2019 Safety valves — General requirements and measures set pressure, reseat pressure and sealing precisely, with accuracy reaching ±0.2% FS for pressure and ±0.5% FS for flow, fully meeting the storage industry’s requirements for high-pressure valve testing. The integrated liquid cooling bench follows the relevant standards for storage liquid cooling, performing leak detection, flow curve analysis and differential pressure stability testing, giving solid support to the compliance of liquid cooling components.
(3) Automation upgrades that raise throughput and accuracy
To meet the needs of large-scale storage manufacturing, Ouxun has upgraded its benches with full automation, substantially improving efficiency and accuracy and cutting labour cost. The core is a PLC plus industrial PC control system with Ouxun’s own optimised control algorithms, supporting automatic pressure regulation, automatic data acquisition and automatic generation of test curves and reports without operator intervention, so batches of components can be tested continuously. Efficiency is three to five times that of conventional manual equipment, matching the batch factory inspection requirements of storage components.
High-precision electromagnetic or ultrasonic flow meters and differential pressure/pressure sensors, combined with advanced signal processing, achieve industry-leading accuracy, avoiding operator error and ensuring results are accurate and consistent. The equipment also supports Modbus, Profinet and other communication protocols for connection to the enterprise production management system, enabling real-time upload, storage and traceability of inspection data and supporting intelligent production management, further reducing labour and operating cost.
3. Applications: Supporting the Whole Storage Industry Chain
Ouxun benches are already used across the storage industry chain. With high accuracy, automation and scenario-specific design, they provide professional inspection solutions for different types of customer, helping companies improve product quality and safeguard system safety.
(1) Storage liquid cooling system manufacturers
For cold plates, CDU units and liquid cooling piping, Ouxun’s integrated liquid cooling bench and PICV/DPCV benches — with proprietary operating-condition simulation and high-precision measurement — perform flow, differential pressure, tightness and leak detection in one station, ensuring liquid cooling systems run stably in storage containers and renewable-integrated storage, and avoiding battery overheating or fire caused by cooling failure. Several storage liquid cooling manufacturers now use Ouxun benches for 100% factory inspection, significantly raising their pass rates.
(2) Dedicated storage valve manufacturers
Dedicated storage valves (safety valves, PICV, DPCV, balancing valves) are core components, and their reliability directly affects system safety. Ouxun’s valve benches and safety valve benches, with imported high-precision sensors and proprietary algorithms, meet requirements for factory inspection and life testing, helping valve manufacturers improve quality and adapt to complex storage conditions. One leading storage valve manufacturer, using the Ouxun safety valve bench with its ±0.2% FS pressure accuracy and automatic data acquisition, achieved 100% factory inspection of safety valves and raised its pass rate from 96% to 99.8%, greatly reducing after-sales risk. For the high-pressure valves in storage fire protection systems, Ouxun’s high-pressure air-tightness bench verifies sealing precisely, ensuring no leakage under high pressure and reliable activation of the fire suppression system.
(3) Storage system integrators and third-party inspection bodies
System integrators need to inspect core components as a whole after assembly to confirm the system meets safety standards; third-party bodies need professional equipment for certification testing. Ouxun’s fully automatic comprehensive bench serves both: with compliant design and high-precision measurement, it performs one-stop inspection of core storage components and generates standardised test reports, giving strong support for system acceptance and certification and helping customers meet market access requirements quickly.
4. Industry Trends and Technology Direction
The storage industry is moving towards larger scale, higher density, longer life and greater safety, and inspection requirements for core components will keep rising. Drawing on its R&D strengths — over 15% of revenue invested annually and a PhD/MSc engineering team — Ouxun will continue to advance its bench technology: first, adapting to new storage scenarios such as long-duration storage and solid-state battery storage with dedicated equipment; second, raising intelligence further by incorporating AI for intelligent analysis of inspection data and fault prediction, helping companies manage risk in advance; third, improving compatibility and customisation, so that dedicated solutions can be tailored to specific customer requirements such as size, pressure and flow range.
5. Conclusion
Safe, compliant storage is the prerequisite for high-quality development of the industry, and professional test equipment is the key to the reliability of core storage components. As an established company in storage and valve inspection equipment, Ouxun Intelligent Technology (Taizhou) Co., Ltd. stays oriented to the needs of the storage industry, works in depth on inspection technology, and — with strong R&D capability, custom engineering and high-precision measurement — has built a full series of benches for storage scenarios, providing professional, efficient and compliant inspection solutions for liquid cooling manufacturers, valve manufacturers and system integrators, backed by 7×24 online technical support to keep equipment running.
If you have storage inspection requirements — PICV/DPCV testing, safety valve testing, liquid cooling system testing — contact Ouxun Intelligent Technology (Taizhou) Co., Ltd. Our technical team will provide a customised solution and work with you to advance high-quality development of the storage industry.