Bidirvolt builds custom load bank systems that turn power and cooling uncertainty into measurable test data before data centers, generators, UPS systems and critical infrastructure go live.
Custom manufacturing for liquid cooling tests
Custom CDU Test Load Banks and Cooling Distribution Manifolds
In liquid-cooled data center testing, a standard load bank is often almost right, but not right enough. The power rating may be close. The cabinet may be too tight. The coolant ports may not match the CDU loop. Bidirvolt customizes both the load bank and the supporting Cooling Distribution Manifold so the test system fits the actual project.
Custom liquid-cooled load banks for project-specific power, cabinet space, cooling method, control logic and reporting needs.
Custom rack manifolds with 1 inch to 4 inch trunk discussions and 3/4 inch or 1 inch branch port options.
One cabinet-style solution for load simulation, coolant distribution, flow balance, QD connection and commissioning records.
Project-Specific PowerLoad capacity, load steps, voltage, control mode and reporting can be designed around the CDU test plan instead of a fixed catalog model.
Rack and Cabinet FitCabinet size, module layout, port position, hose routing and service access are checked before the mechanical design is released.
Manifold Flow BalanceSupply and return manifolds can be designed with branch spacing, balancing valves and sensor ports for more stable coolant distribution.
QD Leakage ControlQuick disconnect type, sealing method, drain, vent and leak-check points are reviewed for repeated CDU test connection and maintenance.
Why standard equipment often misses the CDU test requirement
Liquid cooling projects rarely share the same test boundary. One data center may need a compact rack-mounted heat load. Another may need multiple cabinets connected to a CDU skid. A lab may care most about repeatable flow data. A commissioning team may care about QD leakage, hose access and report export.
This is where standard products create friction. A load bank can be close on kW but wrong on cabinet depth. A manifold can have the right pipe size but the wrong branch pitch. A quick connector can fit the hose but leak during repeated disconnects. In these projects, the buyer does not only need a product. The buyer needs a manufacturer that can adjust the product around the test environment.
Bidirvolt's custom work starts from the project boundary: power load, cabinet size, CDU flow, pressure drop, coolant connection, control interface and test documentation. The load bank and the manifold are reviewed together.
Custom capability one: liquid-cooled load banks
The load bank must match more than power rating. It also has to match the installation space, cooling method, control system and commissioning workflow. Bidirvolt can adapt the load bank from a single test unit to a cabinet-level system when the project needs a larger, rack-style test setup.
Power and Load StepsCapacity, step resolution and test duration are configured from the customer's CDU validation plan, power source and reporting requirement.
Cabinet Size and LayoutModule position, rack mounting space, service side, cable route and coolant hose route are checked against the customer's cabinet structure.
Control and CommunicationPLC/HMI, PC software, alarm logic, data logging and protocol needs can be reviewed against the customer's existing monitoring system.
Cooling MethodLiquid-cooled modules are matched with coolant flow, target delta T, pressure drop and sensor placement for CDU commissioning.
Protection LogicTemperature, flow, pressure, leakage and electrical fault signals can be tied into the cabinet alarm strategy.
Factory Test RecordsFAT documents, inspection records, wiring references and exported test data can be prepared according to the project scope.
Engineering scenarios that drive customization
When the cabinet space is already fixedA customer may already have a rack size, door clearance, hose entry point and cable route. In this case, Bidirvolt adjusts module placement, manifold position and service access before manufacturing.
When the monitoring system is already selectedIf the customer has an existing SCADA, PLC or data logging platform, the load bank control points and sensor outputs can be reviewed so the test data is easier to integrate.
Custom capability two: Cooling Distribution Manifolds
A single load bank is only one part of the test system. In many CDU projects, the customer needs several load sections in one rack or multiple cabinets in a test array. The Cooling Distribution Manifold becomes the component that decides whether the system is easy to connect, easy to balance and easy to maintain.
The manifold is not a universal pipe. It is designed from the load bank layout, branch quantity, rack pitch, CDU connection, quick disconnect selection and sensor requirement.
Branch Count and LayoutBranch quantity, port pitch and U-position are matched to the load bank module arrangement inside the rack or cabinet.
Trunk and Branch Sizing1 inch, 1.5 inch, 2 inch, 3 inch and 4 inch main trunk discussions can be reviewed with 3/4 inch or 1 inch branch ports.
Quick Disconnect SelectionQD type, sealing method, hose direction, hand clearance, drain and vent points are checked to reduce leakage and simplify repeated connection.
Flow BalancingStatic balancing valves, dynamic balancing options and branch measurement points can be considered for supply and return manifold balance.
Sensor ProvisionFlow, pressure, differential pressure, inlet temperature, outlet temperature, alarm and leak-check points can be reserved before fabrication.
Stainless Steel Material304 or 316L stainless steel is selected according to coolant chemistry, corrosion risk, cleanliness and pressure test requirement.
From load unit to full cabinet system
The strongest value is not the load bank alone or the manifold alone. The value is the combined system. Bidirvolt can design the electrical load modules, coolant distribution, manifold ports, QD positions, sensors, alarms, HMI and test records as one cabinet-style CDU test load bank solution.
CDU or Cooling LoopProvides coolant supply, return, pressure, temperature and pump response for validation.
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Cooling Distribution ManifoldSplits supply flow, collects return flow and reserves balancing and measurement points.
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Liquid-Cooled Load Bank CabinetApplies controlled electrical load and converts it into measurable coolant heat.
Differentiated positioning: from a single load bank to a complete cabinet manifold system, Bidirvolt provides one custom path for CDU liquid cooling tests.
Cabinet-style CDU test load bank solution
The cabinet is planned as a working test tool, not as a stack of separate parts. The manifold location, QD clearance, hose route, load bank branch position, electrical access and service side are checked together. This reduces compatibility work for the customer.
The customer does not need to match a separate load bank, pipe header, hose set and sensor package by themselves.
The supply and return flow paths are designed around the actual load unit arrangement.
QD leakage points, drain points, vent points and sensor taps are planned before fabrication.
FAT/SAT documentation, report export and alarm records can be prepared with the cabinet design.
For CDU testing, the load bank cabinet and Cooling Distribution Manifold should be reviewed together before manufacturing.
Cooperation process
1Requirement ReviewShare power, voltage, cabinet space, CDU loop data, coolant type, flow target and report needs.
2System ProposalBidirvolt reviews the load bank layout, manifold layout, control points, sensors and connection method.
3Prototype or ProductionThe cabinet, load modules, manifold, QD interface and wiring are manufactured according to the approved design.
4Factory TestInspection records, pressure checks, control tests and project-defined FAT documents are prepared before shipment.
5Delivery SupportConnection notes, test records and commissioning information support installation and site testing.
Information needed for a custom quote
A good quotation starts with the test boundary. If a value is not fixed yet, send the expected range so the engineering review can start.
RFQ Item
Information to Provide
Test application
CDU commissioning, CDU factory test, liquid-cooled load bank testing, rack heat simulation, lab validation or data center acceptance test.
Load bank requirement
Required load capacity, voltage, power steps, test duration, control method, alarm logic and report export requirement.
Cabinet layout
Rack size, cabinet depth, U-position, service side, cable route, coolant hose route, door clearance and installation limits.
Manifold requirement
Main trunk size, branch quantity, branch port size, port pitch, QD model, flange or thread type, drain and vent requirement.
Hydraulic data
Total flow, branch flow, coolant type, working pressure, design pressure, pressure drop target, temperature range and target delta T.
Documents
Drawing requirement, inspection record, pressure test requirement, FAT/SAT documents, packing needs and commissioning support scope.
Related custom load bank options
Use these pages to define the surrounding load bank, CDU and control requirements before final manifold design.
Send your load bank power requirement, CDU loop data, rack layout, branch quantity, port pitch, main trunk size, branch port size, coolant type, flow rate, pressure range, QD model, sensor requirements, material preference and documentation needs. Bidirvolt can review the load bank and Cooling Distribution Manifold as one system.
