Protect Sensitive Equipment
Identify potential coolant escape paths before assembly to help reduce the risk of leakage near electronics.
CAPABILITIES / QUALITY VERIFICATION
Cold Plate Leak Testing
& Pressure Verification
Define sealing integrity before your cooling component enters service. JBT reviews leak and pressure testing requirements for custom cold plates, manifolds and fluid assemblies against your drawings and acceptance criteria.
Share your component design and required testing conditions.
Request Testing SupportLEAK INTEGRITYPRESSURE RESISTANCEQUALITY RECORDS
Test equipment reference · CoolingThermal
UNDERSTANDING THE TWO TESTS
What Is Leak &
Pressure Testing?
Leak testing checks a sealed component against a defined leakage limit. Pressure testing evaluates its response to specified pressure conditions. Together, they help your team assess the fluid boundary before installation or further assembly.
Leak Testing
Evaluate potential leakage through joints, ports, seals and component walls to identify sealing concerns before use.
Pressure Testing
Apply a defined pressure for a specified duration to evaluate integrity against the approved procedure.
Give every sealing requirement a clear verification method.
Discuss Your Testing RequirementsWHY TESTING MATTERS
Protect the Equipment.
Verify the Fluid Boundary.
Leakage and pressure failures can interrupt cooling and expose sensitive equipment to coolant. Defined testing helps identify manufacturing concerns while the component is still under your control.
Verify Pressure Integrity
Evaluate components at the agreed pressure and duration so acceptance is based on a defined test.
Support Manufacturing Quality
Use documented criteria and recorded results to support consistent release decisions across production.
Turn reliability expectations into measurable inspection requirements.
Plan Your Component VerificationTESTING CAPABILITIES
A Testing Plan Built Around
Your Component Requirements
Sealing interfaces, internal volume and operating conditions shape the test setup. Reviewing them together helps establish a practical verification scope for custom liquid cooling components.
Leak Integrity Evaluation
Assess leakage against an agreed limit to connect the measured result with your sealing requirement.
Pressure Integrity Verification
Define pressure and hold time to assess the fluid boundary under controlled conditions.
Test Method Selection
Review medium, sensitivity and component design to identify a suitable measurement approach.
Test Fixture Considerations
Evaluate ports, seals and connections to reduce leakage indications caused by the fixture.
Acceptance Criteria Review
Confirm limits and decision rules before inspection to make pass, fail and review outcomes clear.
Inspection Documentation
Agree record fields and reporting needs to give engineering and quality teams useful evidence.
Start with your drawing, operating pressure and acceptance criteria.
Request a Testing Feasibility ReviewTESTING METHODS
Four Methods.
Different Verification Goals.
Cold plate leak testing methods differ in sensitivity, test medium and purpose. Compare the approaches below to frame your requirements; available equipment and execution scope are confirmed for each project.
Pressure Decay Leak Testing
Pressurize, stabilize and monitor pressure change over a defined interval. A specified limit supports production leak screening under repeatable conditions.
Helium Leak Testing
Use helium tracer gas with a suitable detector to evaluate small leakage paths. A defined leak-rate criterion supports applications requiring greater sensitivity.
Hydrostatic Pressure Testing
Use a liquid medium to evaluate pressure integrity at an agreed pressure and hold time, supporting verification of the component’s fluid boundary.
Burst Pressure Testing
Increase pressure under a controlled destructive procedure to investigate structural limits. Selected qualification samples help inform the design evaluation.
Method illustrations are reference equipment and setups, not a declaration of JBT-owned instruments. Helium leak testing cold plates, hydrostatic testing and burst testing require project-specific capability confirmation. Burst testing is destructive.
Not sure which method matches your leakage limit or pressure requirement?
Discuss Test Method Selection
TEST EQUIPMENT & PROCEDURE
Controlled Conditions.
Meaningful Results.
Pressure regulators, sensors, sealing fixtures and recording instruments work as a system. Matching the setup to the test requirement helps distinguish component behavior from connection or measurement errors.
The selected instrument, measurement range and verification status must suit the approved procedure.
01
Test Requirement Review
Confirm method, pressure, medium, duration and acceptance criteria to establish a common inspection basis.
02
Fixture Preparation
Select connections and seals around the component interfaces to reduce setup-related leakage.
03
Component Connection
Install the part and verify external connections before measuring the component itself.
04
Controlled Pressurization
Apply pressure according to the approved procedure to maintain controlled test conditions.
05
Measurement & Evaluation
Record the relevant measurements and compare them with agreed limits to support a release decision.
06
Depressurization & Records
Release pressure safely and document the result to retain a clear inspection record.
Build a repeatable cold plate pressure test around defined inputs.
Review Your Testing ProcedureTEST REQUIREMENTS & ACCEPTANCE
Define the Conditions.
Then Judge the Result.
Documented test conditions turn a general quality expectation into a clear acceptance decision. Agreeing these details before inspection supports consistent evaluation and useful records.
Customer Specifications
Review drawings and customer procedures to align inspection with the intended application.
Pressure & Duration
Define medium, pressure, stabilization and hold time to make the measurement reproducible.
Leakage Limits
Specify allowable pressure change or leak rate so sealing acceptance has a measurable basis.
Result Documentation
Record conditions, measurements and disposition to support engineering and quality review.
Project-Specific Standards & Validation
Identify applicable standards, qualification requirements and reporting scope during review. Confirm equipment suitability and test sensitivity before making a compliance claim.
Have a customer test specification or qualification checklist?
Send Your Acceptance RequirementsCOMPONENT APPLICATIONS
Leak Testing for
Liquid Cooling Components
Fluid-containing products need a verification plan that reflects their joints, ports and enclosed passages. Review the component types below to identify the interfaces that matter for your project.
Liquid Cold Plates
Evaluate enclosed channels, connection ports and sealed joints to verify the coolant boundary against your requirements.
Explore details
Vacuum Brazed Cold Plates
Focus on brazed interfaces and enclosed passages to investigate leakage paths after joining.
Explore details
Liquid Cooling Manifolds
Review fluid passages, plugs and connection ports to establish suitable sealing and pressure checks.
Explore details
Liquid Cooling Assemblies
Consider connectors, hoses and component interfaces together to define the assembly-level test boundary.
Explore detailsProduct reference photography illustrates component types. Manifold reference: Haiwu.
Your cooling component has a unique sealing layout. Let’s review it.
Discuss Your Component Application
TESTING QUALITY ASSURANCE
Control the Setup.
Trust the Evaluation.
Reliable coolant leak testing depends on connections, stable conditions and suitable instruments. Reviewing the full setup helps reduce false indications and supports clearer quality decisions.
Fixture & Connection Verification
Check seals and external connections so fixture leakage is not mistaken for a component defect.
Controlled Test Conditions
Apply defined pressure, stabilization and duration to make results comparable.
Equipment Verification
Confirm measurement range, sensitivity and instrument verification status before inspection.
Result Evaluation
Compare results with approved criteria and route nonconforming components for review.
Establish the procedure and acceptance limits before inspection. Investigate nonconforming results and document the agreed disposition.
Make setup verification part of your inspection plan.
Discuss Testing Quality ControlsTEST DATA & TRACEABILITY
Clear Records for
Engineering and Quality Review
Test documentation links conditions and measured results with the applicable acceptance criteria, giving your team a useful basis for component review and issue investigation.
DOCUMENTATION FRAMEWORK
Typical Leak & Pressure Test Record
| Part Number / Batch | As specified |
|---|---|
| Test Method | Per approved procedure |
| Test Pressure | Project-specific |
| Test Duration | Project-specific |
| Measured Result | Recorded during testing |
| Acceptance Criteria | Customer-defined limit |
| Inspection Status | Pass / Fail / Review |
Illustrative record fields only. No actual test results are shown.
Component Identification
Associate the test record with the relevant part or batch so the result can be reviewed in context.
Measurement Records
Retain specified conditions and measured values to support meaningful comparisons.
Acceptance Documentation
Record the evaluation against approved limits to explain the inspection decision.
Quality Review Support
Use available records to investigate findings and respond to customer questions.
Agree report format, retention requirements and identification scope during project review. No universal digital traceability or retention period is assumed.
Tell us which records your quality team needs before production.
Review Your Reporting RequirementsMANUFACTURING INTEGRATION
Verification Belongs
in the Manufacturing Plan
Consider testing during engineering review, then coordinate it with machining, joining and final inspection. Early planning helps protect access to ports and sealing surfaces throughout production.
01
Engineering Review
Identify interfaces and test requirements early to inform access, fixtures and validation scope.
02
CNC Machining
Produce channels, ports and mating surfaces to establish the component’s functional geometry.
03
Joining & Assembly
Complete applicable brazing, welding and sealing operations to close the fluid boundary.
04
Leak & Pressure Testing
Evaluate the completed boundary under approved conditions before release.
05
Quality Evaluation
Review results and address nonconformities to support a documented disposition.
06
Final Preparation
Coordinate cleaning, drying and packaging to prepare accepted parts for delivery.
Plan the Test Before the Final Part Exists.
Port access, fixture clearance and cleanliness needs can influence the manufacturing sequence. Reviewing these details alongside CNC machining, vacuum brazing and friction stir welding helps avoid downstream conflicts.
Connect your manufacturing route with the right verification stage.
Plan an Integrated Manufacturing Review
WHY WORK WITH JBT
Manufacturing Context.
Practical Testing Support.
JBT connects precision component manufacturing with drawing-based testing review. Considering geometry, joining and inspection together helps define a scope that fits your cooling project.
Thermal Component Understanding
Review channels, ports and joining interfaces in the context of the finished cooling component.
Drawing-Based Review
Use your drawings and operating conditions to focus the technical discussion on actual requirements.
Manufacturing Coordination
Consider testing after machining, joining and assembly to select useful inspection stages.
Documentation Support
Review report fields and acceptance requirements early so records match your quality needs.
Bring design, production and verification into one project discussion.
Discuss Your Testing ProjectTESTING APPLICATION EXAMPLES
Different Structures.
Specific Sealing Questions.
These project scenarios illustrate common verification concerns, helping you frame a component-specific test request. They are not presented as completed JBT customer cases.
Brazed Liquid Cold Plate
Focus on brazed joints, sealed passages and inlet/outlet connections. Define a suitable test boundary to evaluate joint integrity and pressure retention.
FSW Liquid Cold Plate
Review welded closure interfaces and enclosed channels. Select test conditions that address sealing continuity along the joined structure.
Liquid Cooling Manifold
Consider machined passages, plugs and threaded ports together. A defined connection plan helps evaluate the complete fluid distribution boundary.
Reference product photographs illustrate the application types; no customer test results are claimed.
Need to evaluate a similar liquid cooling component?
Submit Your Testing RequirementsFREQUENTLY ASKED QUESTIONS
Leak & Pressure Testing FAQs
Practical answers about cold plate leak rate testing, pressure verification and the information needed for a project-specific review.
What is the difference between leak testing and pressure testing?
Leak testing checks a component against a defined leakage limit. Pressure testing evaluates its response to specified pressure conditions. The two serve different purposes, so the procedure and acceptance criteria must be agreed separately.
What leak testing methods are commonly used for liquid cold plates?
Pressure decay and tracer-gas methods are common approaches. Internal volume, allowable leakage, material and sensitivity requirements guide selection; project equipment and execution scope must be confirmed.
How is the test pressure for a liquid cold plate determined?
Use the approved drawing, intended operating conditions and applicable customer specification or standard. The pressure, medium, stabilization period and hold time should be defined before testing; no universal multiplier is assumed.
What is a pressure decay leak test?
The sealed component is pressurized, allowed to stabilize and observed for pressure change over a defined interval. Temperature, volume and fixture behavior affect the result, so evaluation requires controlled conditions and an established limit.
When is helium leak testing necessary?
Helium testing may suit a low specified leak-rate limit or a qualification requirement that cannot be addressed by the selected pressure-based method. Sensitivity, background control and suitable detector availability must be reviewed.
Is hydrostatic pressure testing the same as burst pressure testing?
No. A hydrostatic test uses liquid pressure to evaluate integrity at defined conditions. A burst test intentionally investigates failure pressure under a controlled destructive procedure and is typically applied to selected qualification samples.
Can cold plates be tested after brazing or friction stir welding?
Testing after joining can evaluate the completed fluid boundary. Method selection should consider joint design, access, cleanliness and any subsequent operations that could affect the seal.
What information is needed for a testing quotation?
Provide drawings, component type, quantity, operating pressure, test medium, specified test pressure and duration, leakage limit and reporting requirements. If the method is undecided, share the intended application for review.
Have a requirement that is specific to your cooling assembly?
Ask a Testing QuestionSTART YOUR TESTING PROJECT
Ready to Define Your
Testing Requirements?
Share your drawings, operating pressure and acceptance criteria with JBT. A project-specific review helps establish the test scope before prototype or production commitments.
Drawing-Based Technical Review
Review component geometry and sealing interfaces to focus the test plan.
Project-Specific Evaluation
Consider pressure, medium, duration and leakage criteria to define the verification need.
Manufacturing & Quality Coordination
Connect inspection requirements with the planned manufacturing route and records.
Request Testing Support
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