NVIDIA VR-200 Full Liquid Cooling Era: DELIGHTEOS High-Yield Manifold Welding Solution

Driven by the mass production of NVIDIA Vera Rubin (VR-200) platform, AI data centers have fully entered the full liquid cooling era. With single GPU power hitting 1800W–2300W and single rack density exceeding 200kW, liquid cooling has become a mandatory infrastructure rather than an optional upgrade. As the core fluid distribution hub, the server liquid cooling manifold determines the tightness and operational reliability of the entire liquid cooling system. DELIGHTEOS delivers a full-set precision welding solution for NVIDIA VR-series liquid cooling components, enabling high-precision and high-efficiency mass production.

VR-200 liquid cooling systems consist of four core parts: cold plate, manifold, quick connector and CDU. As the core cabinet fluid dispatching unit, the rack liquid cooling manifold uniformly distributes low-temperature coolant from CDU to each server cold plate and collects heated coolant for circulating reflux, forming a stable closed-loop heat dissipation system for high-power AI racks.

VR-200/VR-44U manifolds are mainly made of 304/316L stainless steel, copper and aluminum alloy, featuring multi-branch interface structures. To fit diverse server specifications and customized deployment scenarios, DELIGHTEOS provides tailored custom server cooling manifold welding services, ensuring consistent flow distribution and zero-leakage performance for personalized liquid cooling layouts.

Acting as the critical connection between CDU and on-board heat dissipation components, the high-precision liquid cooling CDU manifold synchronizes with CDU temperature and flow control logic. It eliminates system pressure deviation and unbalanced heat dissipation, delivering stable and uniform cooling for full-load high-power GPUs and guaranteeing sustained AI computing stability.

Widely adapted to mainstream hybrid cooling architectures, the compatible manifold for rear door heat exchanger coordinates cabinet rear door heat exchange and internal liquid cooling loops. It comprehensively improves overall rack heat dissipation efficiency and solves local overheating pain points of densely deployed GPU clusters.

Built for extreme high-density computing scenarios, the integrated rack manifold liquid cooling system adopts standardized precision welding and airtight connection technology. All welding points meet Grade 8 helium mass spectrometer leak detection standards, effectively avoiding coolant leakage, short circuit and fire risks in high-end data centers.

Targeting high-load AI computing scenarios, the professional GPU rack liquid cooling manifold adopts equal-flow multi-branch design. Matched with micro-deformation precision welding technology, it maintains stable coolant delivery under long-term high-load operation, preventing heat dissipation attenuation and ensuring consistent GPU computing performance.

Traditional manifold manufacturing faces persistent pain points including unstable weld penetration, excessive thin-wall thermal deformation and inconsistent multi-interface quality. DELIGHTEOS’s innovative process empowers the integrated liquid cooling manifold with integral high-precision welding, eliminating conventional defects and greatly improving batch production yield and stability.

Manifold annular welding is a top-tier difficult process in liquid cooling component manufacturing. T-type 360° full-circle welding suffers from focal offset, uneven molten pool distribution and arc joint defects, requiring precise penetration control of 0.068–0.131mm across the full weld. Meanwhile, ultra-thin 1–2mm pipe walls are prone to deformation, pipe collapse and internal weld beads, which disrupt assembly accuracy and fluid circulation. Traditional processes only achieve a low yield of about 67% with high rework costs.

DELIGHTEOS launches a full-process solution covering dedicated equipment, customized tooling and optimized processes for NVIDIA VR-200 series core components including inner manifolds and bellows assemblies. The self-developed DKLW series fiber laser welding machines (1500W–6000W) adapt to stainless steel, copper and aluminum alloy materials. Equipped with 4/5-axis linkage platforms and 3D rotary tooling, the equipment achieves ±0.02mm repeated positioning accuracy, fully meeting thin-wall precision welding requirements.

The independently developed segmented symmetrical skip welding technology effectively offsets welding thermal stress, controlling post-weld pipe roundness error within 0.02mm. Combined with laser swing welding, it optimizes weld fusion, eliminates pores and cracks, and forms dense and uniform weld seams. Supported by full-process high-purity argon protection, real-time molten pool monitoring and helium leak detection integration, the solution realizes full closed-loop quality control.

Field verification with a leading liquid cooling manufacturer shows remarkable upgrading results. After adopting DELIGHTEOS’s customized welding workstation and process scheme, the product yield skyrocketed from 67% to a stable 99.6%, single-shift capacity increased over 3 times, and comprehensive manufacturing costs dropped by 40%. All finished products achieve 95%+ base material weld strength, Grade 8 ultra-low leakage and ultra-small welding deformation.

Currently, DELIGHTEOS’s precision welding solutions fully cover NVIDIA mainstream liquid cooling businesses, including VR-200 bellows, inner manifold, VR-44U manifold, cold plate nozzle and various liquid cooling pipeline airtight welding, providing reliable technical support for the large-scale deployment of next-generation full liquid cooling AI data centers.

As a premier global authority in liquid cooling, EXTRCOOL provides a wide spectrum of thermal management hardware—from dualmode CDUs and manifold assemblies to cold plates, reardoor heat exchangers, dry coolers, and containerized units—all purposebuilt for AI and HPC data centers. Designed for robust reliability, seamless system integration, and straightforward scalability, these solutions deliver a comprehensive turnkey cooling package. We collaborate with data center operators and enterprise clients across North America, South America, Europe, Africa, and Asia.