VACCUM BOX INSPECTION KIT
Service Overview
A vacuum box inspection kit is used for bubble leak testing
of accessible weld seams and joints where a local pressure differential can be
created. It is commonly applied to tank floors, lap joints and fabricated
structures when the approved procedure permits vacuum box examination.
Scope of Service
1. Select
vacuum-box size and sealing arrangement for the required weld or surface.
2. Provide
a transparent viewing window for observation of the test area.
3. Include
vacuum gauge, hoses, valves, seals and connection accessories as required.
4.
Coordinate a suitable vacuum source or venturi arrangement.
5. Provide
operating and handling information according to the agreed kit scope.
Available Specimen and Component Configurations
1. Straight
vacuum boxes.
2. Corner
or edge vacuum boxes where required.
3. Flexible
sealing arrangements for local geometry.
4. Vacuum
gauge and hose assemblies.
5. Portable
kits for field and training use.
Flaws, Reflectors or Conditions Covered
1.
Through-leak paths in welds.
2. Pinholes
and local leakage points.
3. Leakage
through lap-joint or tank-floor weld areas.
4.
Demonstration samples with controlled leak points for training.
Supported NDT Methods
The product, specimen or service can support the following
NDT methods where technically applicable. Final suitability is confirmed
against the material, geometry, target condition and intended equipment
configuration.
1. Vacuum
Box Bubble Leak Testing.
2. Visual
Testing (VT) as part of surface observation.
3. Other
leak-testing methods may be used separately according to project requirements.
Typical Applications
1.
Tank-floor weld examination.
2.
Fabrication quality checks.
3.
Maintenance and shutdown inspection.
4. Training
and practical demonstrations.
5.
Procedure development and operator familiarisation.
Industries Served
1. Oil and
gas storage facilities.
2.
Refineries and petrochemical plants.
3. Tank
fabrication and repair contractors.
4. Marine
and offshore fabrication.
5. Training
centres and inspection service companies.
Applicable Codes, Standards and References
The work may be designed, manufactured or performed with
reference to the following, as applicable to the agreed scope:
1. API tank
inspection/repair references where applicable.
2. ASME
leak-testing references where applicable.
3. ASTM or
customer procedures for bubble leak testing.
4.
Asset-owner specifications and approved project procedures.
The customer should identify the exact document, edition and
revision. Reference to a standard does not by itself constitute certification,
accreditation or approval by the issuing body.
Project Workflow
1. Requirement Review: Review the
application, method, component, material, geometry, equipment and intended use.
2. Technical Definition: Confirm drawings,
dimensions, flaw or reflector schedule, tolerances, access and documentation
requirements.
3. Design Approval: Issue the proposed
technical basis or layout for customer review where custom manufacture is
required.
4. Manufacturing or Service Execution:
Complete fabrication, machining, flaw introduction, marking, inspection or
preparation under controlled instructions.
5. Verification: Check agreed dimensions,
identification, reflector locations and relevant NDT responses using suitable
methods.
6. Documentation and Delivery: Compile
agreed records, protect the items and arrange domestic or international
dispatch.
Documentation and Deliverables
Depending on the agreed scope, the deliverable package may
include:
1. Approved
drawing or technical layout, where applicable.
2. Material
and component information, where included.
3. Flaw,
reflector or reference-feature schedule and location map.
4.
Dimensional inspection record.
5. NDT
verification record, where included.
6. Unique
identification, engraving or labelling details.
7.
Photographic record where requested.
8.
Certificate of conformity for the agreed manufacturing or service scope.
9. Packing,
preservation and handling information.
Why Choose NDE Flaw Tech India?
1.
Application-specific engineering rather than one-size-fits-all
selection.
2. Support
for conventional and advanced NDT methods where technically applicable.
3.
Controlled machining, flaw introduction, identification and custom
fabrication capabilities.
4. Open,
blind and partially blind documentation options for training and assessment
programmes.
5.
Traceable drawings, flaw maps, dimensional records and verification
information when included in the scope.
6. Support
for domestic and international customers, subject to logistics and applicable
restrictions.
Information Required for a Technical and Commercial Proposal
1.
Component or weld geometry.
2. Required
vacuum-box dimensions.
3. Target
vacuum range from the approved procedure.
4. Vacuum
source available at site.
5. Hose and
connection requirements.
6.
Applicable test procedure or standard.
7. Quantity
and delivery location.
Technical Limitations and Responsibilities
1. Vacuum
box testing is suitable only where the procedure and component geometry permit
local sealing.
2. Surface
condition and seal quality influence test stability.
3.
Acceptance criteria and required vacuum level must come from the
approved procedure.
4.
Leak-detection solution must be compatible with the component and
service requirements.
5. The kit
does not replace engineering assessment or other leak tests required by the
governing standard.
Frequently Asked Questions
Can the vacuum box be customized?
Yes. Size, shape and connection arrangement can be reviewed
for the intended weld geometry.
Is a vacuum pump included?
A vacuum source can be included or coordinated depending on
the agreed kit configuration.
Can it be used on tank floors?
Yes, vacuum box testing is commonly used on accessible
tank-floor welds where the approved procedure permits it.
Can you provide a training sample with known leaks?
Yes. A demonstration panel with controlled leak points can
be considered for training.
What vacuum level should be used?
The required vacuum level and hold time must follow the
applicable approved test procedure.
Request a Proposal
Send the weld geometry, required box size, target vacuum
range, connection preference and applicable procedure. We will propose a
suitable vacuum box inspection kit and accessory package.