Salt Spray Test Chambers VLM

Compact and easy-to-use sample collection booths, both from the front and the front, are designed for salt melt tests and water condensation tests according to many international standards such as NSS, ESS or CASS.
Modular design, adaptability to the requirements of the various test specifications contributes significantly to the continuous improvement of systems designed for corrosion testing. Only high-quality materials that combine with reliability make the VLMs low maintenance and service friendly.

Salt Spray Test

The Salt Spray test is a relatively simple corrosion test. Prerogative for reliable results is not only to follow the standard test procedure but also to properly prepare test samples and keep all compo-nents clean. For this reason are VLM test chambers for Salt Spray test are designed in such way to meet and control these conditions. Main features of VLM test SAL chambers are:.

Advantages of Salt Spray Test Chambers:

• Compact, space saving design in the laboratory,
• Wide range of front and top loading chambers in combination with other corrosion tests,
• Free view inside the test chamber through the transparent acrylic hood (top loading chests) or through the isolated glass door (front loading cabinets),
• Free standing tank on castors for the test solution allows easy handling and cleaning,
• Both chamber and the tank can be cleaned thoroughly and can be for this reason used for both the Neutral Salt Spray test as well as for the CASS test,
• Humidifier made of the transparent Duran glass for easy visual check,
• Electronically controlled diaphragm pump for accurate dosing of the test solution is essential for the high reliability and repeatability of the Salt Spray test,
• Test chamber made ​​of stainless steel and coated with Halar® (ECTFE) ensures fast and uniform heating,
• Low maintanance costs (e.g. Micanite surface heaters can be quickly replaced if broken),
• Ventilation of test chamber after the test in order to protect the equipment in the test chamber from corrosive salt fog.

PARAMETRES

Available confogurations of Salt Spray Test Chambers:

Salt Spray Test Chamber, Capacity 600 or 1000 litres, with top loading design:

• Test area cleaning system,
• Heating system for testing at temperatures up to +55°C,
• Test module for making a Salt Spray Tests and Water Condensation Tests,
• Aeration of air from ambient according to ISO 6270-2,
• System for performing tests with variable temperature and humidity phases,
• Automatic water refiling,
• Beckhoff PLC Controller with function of managing the cleaning process inside the test chamber,
• Option: VisiCORR Software,
• Option: RS232.

Salt Spray Test Chamber, Capacities 400, 1000, 3000 or 3500 litres, with front loading design:

• Test area cleaning system,
• Heating system for testing at temperatures up to +60°C,
• Test module for making a Salt Spray Tests and Water Condensation Tests,
• Aeration of air from ambient according to ISO 6270-2,
• System for performing tests with variable temperature and humidity phases,
• Automatic water refiling,
• Indicator of test solution level in tank made in LED technology (not applicable in chambers with capacity of 400 liters,
• Automatic switching between test solution tanks (not applicable for 400, 1000 liter chambers),
• System for performing controlled condensation tests according to 6270-2,
• Beckhoff PLC Controller with function of managing the cleaning process inside the test chamber,
• Option: VisiCORR Software,
• Option: RS232.

ACCESORIES

Compressed Air

Supply: pressure 6-8 bar
Compressed air is required for the production of the salt spray, for blowing the salt spray into test chamber, blasting salt fog outside the test chamber after the salt spray test is finished and for the operation of the pneumatic components such as the ball valves.
According to DIN EN ISO 9227 the operation of Salt Spray test chambers requires oil-free compressed air. VLM offers a range of air filtering units as accessories.

Water / Demineralized Water

Water supply pressure: 2-4 bar,
Leak water detector with floor sensor,
Plug size: 3/4″ – gexternal thread.
FVLM offers ion-exchange cartridges for water demineralization. Demi water is required both for cleaning the test chamber and for the preparation of the test solution.
Max. conductivity: 20 µS/cm (5µS/cm for cyclic corrosion tests with humidity regulation).

Drain Water

Drain water connection according to the fitting on the test chamber. The drain water is normally evacuated through flexible PU hose. In case of test chests it might happen that the drain in the laboratory is positioned higher than the drain fitting VLM provides a drain pump as accessory.

Air Exhaust

The air exhaust should be ideally implemented with a flexible PU plastic hose to a PVC tube which will evacuate the salt fog directly outdoor. The flexible hose connection from the test chamber should not be longer than 1.5 m in order to avoid a “water trap” by reverse flowing condensate.
NOTE: The test chamber must not be connected directly to laboratory ventilation system which would create a suction effect. This suction effect will not allow an uniform distribution of the salt fog preventing a uniform fall out in the test chamber.

Electrical Supply

Single phase (230 V) or three phase (400 V) power supply for the test chamber and 3-4 mono phase power outlets (230 V) for powering auxiliar devices.

Standards

• EN ISO 9227:2012,
• DIN 50942,
• ASTM B 117-73,
• ASTM B 287-74,
• ASTM B 368-68,
• ISO 7253,
• BS 1224,
• BS 2011,
• BS 3900 F4,
• BS 3900 F12,
• BS 5466 Part 1,
• BS 5466 Part 2+3,
• NFX 41002,
• AS 21331 Chapter 3.1,
• SIS 1841190,
• JIS Z 2371.