Atasayın for defense manufacturing

Leak testing and production monitoring for the defense industryCritical parts ship with proof.

In defense manufacturing, a sound part is not enough; you also have to prove that it was tested and made under the right conditions. Atasayın sets up both: leak testing with Adlema, and monitoring of air, energy and production conditions with AV Track and ATS Cloud.

  • Authorized Adlema dealer
  • R&D at Teknopark Istanbul
  • AV Track and ATS Cloud software
Leak test of a defense electronics enclosure: a quick-connect fitting on the test port and a BT4000 leak tester connected by a blue hose
EM-2611-0417 Illustrative setup
BT4000 leak tester Electronics enclosure Quick-connect fitting
Test cycle Fill
MEASURING 0.0Pa
From platform to part

Land, air and naval platforms: which parts are tested, which processes are monitored?

Choose a platform. The numbered balloons show the parts that go through leak testing in defense manufacturing and the processes whose conditions are measured.

Armored vehicle and powerpack parts

Cooling housing with its ports sealed by quick-seal connectors and a BT4000 leak tester connected by a hose at the rear
Illustrative test setup
1Leak testingLand platform

Cooling circuit housing

Why it matters
In the cast housing of the powerpack's cooling circuit, porosity or a gasket leak means coolant loss when the vehicle is in the field.
What Atasayın does
The ports are sealed with quick-seal connectors. The BT4000 fills the housing with air or nitrogen and measures pressure decay at Pascal level. The result is recorded against the part's serial number.
  • MethodDifferential pressure decay
  • Highlight0.1 Pa resolution at 1 bar
BT6000 · MASS FLOW METHODFTCONSTANT PRESSURE250 mbarLEAK0.84 ml/min
Illustrative diagram
2Leak testingLand platform

Fuel tank and lines

Why it matters
A leak in the fuel circuit is both a fire risk and a mission loss. Large tanks don't fit in a dunk tank, and counting bubbles doesn't tell you the leak rate.
What Atasayın does
For large-volume and flexible parts the mass flow method is used: the BT6000 holds the part at constant pressure and measures the air flowing in. The leak is read in ml/min.
  • MethodMass flow
  • HighlightFrom 0.001 ml/min
Vehicle computer unit placed in a transparent test chamber; the hose from the chamber runs to the rear of the leak tester
Illustrative test setup
3Leak testingLand platform

Electronics boxes and connectors

Why it matters
The vehicle computer, radio box and cable glands work in mud, rain and water crossings. IP67 means withstanding thirty minutes at a depth of one meter.
What Atasayın does
The BT3000 does this verification dry: the box never enters water; its tightness is read from the pressure change in a closed volume. After the test the box goes straight to assembly, with no drying.
  • MethodIP67 verification, volume test
  • HighlightFrom −0.9 to 25 bar
Machining the mating face of a cast housing clamped in a fixture on a CNC machine
Illustrative machining scene
4Production dataLand platform

Hull and part machining

Why it matters
On long-cycle defense parts an unplanned stop pushes the delivery date. The quality system also asks which part was machined on which machine, when and under what conditions.
What Atasayın does
Running, stopped, fault and setup states of the machines are collected from PLCs and sensors. Cycle time, part count and downtime reasons are tracked on one screen together with the work order.
  • MethodMachine status, cycle time, OEE
  • HighlightLive data from PLCs and sensors
DRYER OUTLET · MAIN AIR LINEDWPSdew pointALG-VflowDEW POINT−41.8 °CFLOW412 Nm³/h
Illustrative diagram
5Air & gas · AV TrackLand platform

Painting, coating and pneumatic assembly

Why it matters
Moisture in compressed air causes problems in the paint line and in pneumatic equipment. In most plants, leaks waste 20-30% of the air the compressor produces.
What Atasayın does
DWPS continuously measures the dew point at the dryer outlet and ALG-V the flow in the main line. AV Track shows these values on one screen, raises an alarm when a threshold is crossed, and reports consumption and leaks by department.
  • MethodDew point, flow, pressure
  • HighlightContinuous monitoring and alarms with AV Track
BT9000-AERO · LEAK LOCATION BY SNIFFERAIR + HELIUMLEAK LOCATIONFound
Illustrative diagram
1Leak testingAir platform

Fuel tank and transfer lines

Why it matters
Integral wing tanks and transfer lines go through pressure and temperature changes on every flight. You need to know not only whether there is a leak, but where.
What Atasayın does
The BT9000-AERO fills the tank with an air-helium mix. First a pressure decay test looks for a leak; if there is one, the instrument switches to sniffer mode and pinpoints its location. In the hangar the same job is done with the case-type BT9000-B.
  • MethodPressure decay and helium sniffer
  • HighlightAir-helium mix, two modes
Electronics enclosure with a quick-connect fitting on its test port and a BT4000 leak tester
Illustrative test setup
2Leak testingAir platform

Avionics and sensor enclosures

Why it matters
Mission computer, radar and sensor enclosures are exposed to pressure differences and condensation at altitude. Connector feedthroughs can leak just as much as the lid gasket.
What Atasayın does
A quick-connect fitting is attached to the enclosure's test port. The BT4000 tests the lid and connector feedthroughs in a single cycle; the enclosure stays dry and closed.
  • MethodDifferential pressure decay
  • Highlight0.1 Pa resolution at 1 bar
HELIUM VACUUM CHAMBER · SFJ-231VACUUMMASS SPECTROMETERSENSITIVITY5×10⁻¹³ Pa·m³/s
Illustrative diagram
3Leak testingAir platform

Electro-optical housings

Why it matters
Camera and targeting system housings are filled with dry nitrogen to prevent condensation. If the gas escapes, moisture gets in and the optics fog.
What Atasayın does
Delicate housings are tested without stress using the low-pressure BT4000-LP. For tighter limits helium is used: the SFJ-231 mass spectrometer goes down to 5×10⁻¹³ Pa·m³/s.
  • MethodLow-pressure test, helium
  • Highlight0.005 – 0.1 bar test pressure
Gloved hands laying carbon fiber onto a mold in a clean room; an ambient display on the wall
Illustrative layup room
4Energy · ATS CloudAir platform

Composite layup and curing

Why it matters
The strength of a composite part depends on the temperature and humidity of the layup room and on the cycle the curing oven follows. If conditions were off, the part looks sound but cannot be trusted.
What Atasayın does
ALG-TH sensors continuously measure the temperature and humidity of the layup room. ATS Cloud records the electricity and natural gas consumption of the oven and autoclave cycle by cycle, and raises an alarm when a value leaves its target range.
  • MethodAmbient temperature and humidity, cycle energy
  • HighlightAlarm outside the target range
Pneumatic assembly fixture and the flow and pressure measuring points on the air line feeding it
Illustrative air system
5Air & gas · AV TrackAir platform

Air supply for assembly fixtures

Why it matters
Pneumatic fixtures hold the part in position throughout assembly. If pressure drops or water travels down the line, both the fixture and the part are affected.
What Atasayın does
DWPS is fitted at the dryer outlet and ALG-V on the main branch. AV Track shows dew point, flow and pressure on one screen and raises an alarm before a dryer or filter problem reaches the line.
  • MethodDew point, flow, pressure
  • HighlightDryer and filter alarms with AV Track
Bronze pump housing with its flanges sealed by custom connectors and a BT4000 leak tester
Illustrative test setup
1Leak testingNaval platform

Pump and valve housings

Why it matters
In the bronze and stainless cast housings of auxiliary systems, porosity often only shows up after machining. Once installed on board, replacing one takes days.
What Atasayın does
The flanges are sealed with part-specific connectors. The BT4000 tests the housing dry; the part moves on to painting and assembly without getting wet and with its result on record.
  • MethodDifferential pressure decay
  • HighlightPart-specific sealing connectors and fixture
HELIUM VACUUM CHAMBER · SFJ-231VACUUMMASS SPECTROMETERSENSITIVITY5×10⁻¹³ Pa·m³/s
Illustrative diagram
2Leak testingNaval platform

Hermetic connectors and penetrations

Why it matters
Mast-mounted sensors and bulkhead penetrations are in constant contact with salt water. For hermetic connectors the reject limit is so small that it can only be measured with helium.
What Atasayın does
Hermetic components are tested in a helium vacuum chamber. The SFJ-231 mass spectrometer responds in under a second; the helium is recovered.
  • MethodHelium mass spectrometry
  • Highlight5×10⁻¹³ Pa·m³/s
Flow meter and pressure sensor on a gas line in the foreground; behind them a welder working on a bronze pump housing, with gas cylinders
Illustrative welding shop
3Air & gas · AV TrackNaval platform

Welding and cutting gases

Why it matters
If shielding gas flow drops, the weld bead comes out porous; the defect is often only found in non-destructive testing. A leak in the line also consumes gas silently.
What Atasayın does
Gas flow and pressure sensors measure the line continuously. AV Track monitors flow and consumption per station and raises an alarm when flow falls below the limit.
  • MethodGas flow, line pressure, consumption
  • HighlightPer-station monitoring with AV Track
Heat treatment furnace with its door ajar; in the foreground a meter on the natural gas line, a panel with an energy analyzer and a water line
Illustrative heat treatment line
4Energy · ATS CloudNaval platform

Heat treatment and surface treatment lines

Why it matters
The heat treatment furnace and the coating line determine the part's mechanical properties. Electricity, natural gas and water consumption show whether the process runs under the same conditions every time.
What Atasayın does
ATS Cloud monitors electricity, natural gas and water by line and calculates combustion efficiency and unit consumption. It raises an alarm when consumption leaves the target range you set.
  • MethodElectricity, natural gas, water consumption
  • HighlightElectricity, natural gas and water by line
Energy analyzer on an electrical panel, with CNC machines and a monitoring screen behind
Illustrative energy monitoring
5Energy · ATS CloudNaval platform

Workshop and shipyard energy

Why it matters
Machine tools, welding machines and compressors keep consuming after the shift ends. Unmeasured consumption enters the part cost unseen.
What Atasayın does
ATS-11RRE analyzers collect electrical data by line and machine. ATS Cloud shows consumption shift by shift, raises an alarm when a target is exceeded and produces the ISO 50001-compliant report itself.
  • MethodActive power, consumption, power quality
  • HighlightReports by shift with ATS Cloud
Leak testing

How a leak test works: four phases, one record.

The part and a leak-tight reference volume are filled to the same pressure. The instrument tracks the difference between them at Pascal level: if it stays below the limit, the part passes. The part stays dry, the result is a number, and it is recorded against the serial number.

Pick a part, watch the cycle

Illustrative simulation. Test pressure, duration and reject limit are defined separately for every part.

Test setup of the selected part
Serial no. EM-2611-0419 Program P-07 · BT4000
PREPARING
Test pressure
0mbar
Difference ΔP
0.0Pa
Reject limit
20Pa
Time
0.0s
  1. Fill
  2. Stabilize
  3. Measure
  4. Vent
Test recordsEvery cycle is logged automatically
Serial no.PartΔPResultTime
Production conditions

The part passed its test. Was it made under the right conditions?

Damp air, a pressure drop or a furnace drifting off target does not show up in a test result. Atasayın measures these conditions continuously; AV Track and ATS Cloud record the data and alert you when a limit is crossed.

Compressed air and gas

Compressed air monitoring (AV Track): is the air dry, is the pressure right, how much is leaking?

AV Sens sensors measure dew point, flow, pressure and filter condition. AV Track shows them on one screen together with the compressor's specific consumption (kWh/Nm³).

  • Alarm before a dryer or filter problem reaches the line
  • Leak and consumption reports by department
  • Cloud-based; quick to install
AV Sens and AV Track
Energy

Energy monitoring (ATS Cloud): which line uses how much, on which shift?

ATS-11RRE analyzers measure at panel and machine level. ATS Cloud tracks electricity, water and natural gas together and brings furnace, compressor and machine consumption onto one screen.

  • Alarm when a target value is exceeded
  • Automatic ISO 50001-compliant reports by e-mail
  • Role-based access; single or multiple sites
ATS Energy Monitoring System
Production data

Machine monitoring and OEE: which machine is running, which has stopped and why?

Machine status, cycle time and part count are collected automatically from PLCs and sensors and matched to the work order.

  • OEE and downtime reasons on a live dashboard
  • Which part, on which machine, when
  • PDF and Excel reports
Automation

This is how the measuring points sit in the plant. Select one of the software cards above to highlight the points connected to it.

Swipe sideways to see the whole diagram.

AV TRACK COMPRESSOR DRYER AIR RECEIVER MT DWPSdew point FT ALG-Vflow ASSEMBLY · PAINT PT pressure ATS CLOUD MAIN PANEL JT ATS-11RRE PRODUCTION BOARD CNC CELL YS status TEST STATION PDT BT4000

Illustrative plant diagram · MT moisture, FT flow, PT pressure, JT power, YS machine status, PDT differential pressure

Records and calibration

Calibration and traceability: when the auditor asks, the answer is ready.

Depending on the scope of work, defense prime contractors require quality systems such as ISO 9001, AS9100 or AQAP 2110 from their suppliers. All of them share one expectation: the measuring instrument is calibrated, the result and the production conditions are recorded, and the record is traceable down to the part.

  • Every result is tied to the part

    Test and production data are written to the serial number read from a barcode or laser marking.

  • Production conditions are on record too

    AV Track and ATS Cloud store air dryness, pressure, and gas and energy consumption with a timestamp. Historical reports are available.

  • The instrument is calibrated

    Adlema's pressure calibration laboratory is accredited by TÜRKAK to ISO/IEC 17025 (AB-0345-K). Calibration is brand-independent and can be carried out on site.

  • Data flows into your systems

    The test instruments come with Modbus RTU; with Profinet, EtherCAT and Ethernet TCP/IP options they connect to your existing PLC and production software.

Leak test recordEM-2611-0417
Part
Electronics enclosure
Method
Differential pressure decay
Program
P-07 · air
Test pressure
300 mbar
Measured difference
3.2 Pa
Reject limit
20 Pa
Instrument
BT4000 · calibration valid
Time
10 Nov 2026 · 14:32:07
Illustrative record PASS
Scope

A working station, not just an instrument

The test instrument, part-specific fixture, quick-seal connectors, test program and data connection are delivered together.

Contact

Four jobs, one team

You don't deal with separate companies for testing, production data, compressed air and energy; it all comes from the same team.

R&D

Developed in-house

We develop our sensors and monitoring systems at our R&D center in Teknopark Istanbul.

Support

With you after installation

Commissioning, training, calibration and service are provided from Türkiye.

Frequently asked questions

Questions about leak testing and production monitoring in the defense industry

Can't find your question? Write to us and we'll answer for your specific part.

Which parts are leak tested in the defense industry?

Any part that carries liquid or gas, or that must keep water and moisture out: fuel tanks and lines, cooling and hydraulic housings, pump and valve housings, electronics and avionics enclosures, connectors, electro-optical housings. The test method is chosen according to the part's volume, material and reject limit.

Can an IP67 test be done without immersing the part in water?

IP67, per IEC 60529, defines withstanding thirty minutes of immersion at a depth of one meter. For type approval the immersion test is still carried out. In series production, however, every part can be checked without water using the pressure decay method: the box is tested in a closed volume and its tightness is read from the pressure change. The part stays dry and the result is recorded as a number.

How does a differential pressure decay test work?

The part under test and a leak-tight reference volume are filled to the same pressure. The instrument tracks the pressure difference between the two; if the part leaks, the difference grows. The Adlema BT4000 measures with 0.1 Pa resolution at a test pressure of 1 bar. If the difference stays below the reject limit, the part passes.

When is a helium leak test needed?

When the allowed leak rate is too small to measure by pressure decay, or when you need to know not just that there is a leak but where it is. Hermetic connectors and electro-optical housings are tested in a vacuum chamber with a mass spectrometer; on large parts such as fuel tanks the leak is located with a sniffer probe.

How are test results matched to the part's serial number?

The part is read from a barcode or laser marking and the test result is written to that identity. The test instruments come with Modbus RTU; with Profinet, EtherCAT and Ethernet TCP/IP options they connect to the existing PLC and production software. Results can also be exported to Excel via USB.

How are leak test instruments calibrated?

Adlema's pressure calibration laboratory is accredited by TÜRKAK to ISO/IEC 17025 (AB-0345-K). Calibration is brand-independent; test instruments and pressure instruments from other manufacturers are calibrated as well. The service can be provided on site.

What do AV Track and ATS Cloud do?

AV Track monitors compressed air and gas lines: dew point, flow, pressure, leaks and the compressor's specific consumption appear on one screen. ATS Cloud monitors electricity, water and natural gas consumption by line and shift, raises an alarm when a target value is exceeded and automatically produces ISO 50001-compliant reports. Together they keep the record of the conditions under which the part was made.

How do we start working with Atasayın?

Share your part's technical drawing or the problem you have in production. The right test method and measuring points are determined by trials on a sample part; then the instrument, fixture, software and on-site installation are delivered as one project.

How we start

It starts with a part or a question.

  1. Step 1

    We review the part and the line

    We clarify the need from the technical drawing, the current test method and production volumes.

  2. Step 2

    We choose the method and measuring points

    Which test, which pressure, which sensor, which data: decided by trials on a sample part.

  3. Step 3

    We install and commission

    Instrument, fixture, software and on-site installation are delivered as one project; your team is trained.

  4. Step 4

    We keep the measurement alive

    With calibration, maintenance and service, the system stays ready for every audit.

Share your part drawing or your production question.

Let's define the right method and setup together. If you like, we can run a demo with your sample part.

The photos, drawings and figures on this page are illustrative; they do not show a completed customer project or an actual test result. The test method, pressure and reject limit are defined separately for every part.