Chamber Structure, Design, and Control

Ø The outer chamber is made of SUS 304 stainless steel with an additional powder-coated finish. The inner chamber is fabricated from SUS 316 stainless steel plates. All joints are smooth and even, ensuring a compact structure, bright appearance, and zero leakage.

Ø The sample chamber is welded from pure titanium plates, providing excellent sealing with no leakage. The chamber undergoes pressure-holding treatment to ensure long-term tightness.

Ø The system operates based on a displacement mechanism. The temperature and humidity chamber generates the required environmental conditions, which are delivered to the sample chamber through 3–5 air exchanges. The controlled corrosive gases enter the sample chamber together with the temperature-humidity airflow, and after passing through the samples, are discharged into a filtration system.

Ø The inner door of the sample chamber is made from high-temperature-resistant transparent PC material and sealed with high-temperature and corrosion-resistant silicone rubber gaskets, combined with stainless-steel compression door locks to ensure airtight sealing.
The outer door is made of powder-coated 304 stainless steel, while the inner surface is made of 316 stainless steel. A viewing window made of PC material allows clear observation of the test status inside the chamber.

Ø Gas concentration detection ports are installed on the main door. The design allows sampling from the outer door, through the inner door, and directly into the sample chamber without opening the chamber, preventing air leakage or cross-contamination between compartments.

Ø Inside the chamber, an adjustable horizontal sample rack is installed, which can be set to any desired height. It is made of pure titanium and its load capacity is customized according to the client’s requirements.

Ø The equipment includes an integrated gas filtration unit. The laboratory room is also equipped with a secondary filtration system to ensure that exhaust gases are treated before being discharged. Any accidental leakage caused by improper operation or equipment malfunction will be captured and filtered immediately. The treated exhaust meets emission standards and prevents environmental pollution.

Ø Equipped with a sealed gas cylinder cabinet to securely house one cylinder of SO₂ or H₂S gas, ensuring safety. A built-in gas concentration detection device is included to check the concentration of the cylinder gases.

Ø Equipped with gas leakage alarms for the SO₂ or H₂S gas stored inside the sealed gas cylinder cabinet, as well as gas leakage alarms for the laboratory room. A total of two sets of alarms are provided for each type of gas.

Ø Designed with a single mass flow meter. A cleaning system using nitrogen or dry air is installed for the flow meter to extend its service life.

Ø The gas concentration inside the equipment can be monitored at any time. Each unit is equipped with one imported detection pump from Japan and one detector tubes for SO₂ or H₂S gas, plus one box of high-concentration detector tubes for cylinder gas detection, totaling two boxes.

Ø The equipment is supplied with critical spare parts, including: one backup negative-pressure device, one dedicated spare pressure-reducing valve, one spare humidifying lift pump, one spare water tank level switch, one or two spare boiler heating tubes, and other spare components.

Ø The equipment’s unique design and the availability of key spare parts greatly reduce the likelihood of unexpected shutdowns during testing.

Ø Consumables included: one cylinders of corrosive gases, two boxes of imported corrosive gas detector tubes, three sets of filtration materials, and three sets of safety masks and gloves.

Ø The equipment fully supports the copper coupon weight-gain test specified in the standard. It is supplied with 5 pieces of standard imported copper coupons.

Ø The manufacturer can assist customers in conducting copper coupon weight-gain tests to ensure the equipment meets the required standard specifications.

Ø Electrical components are sourced from international brands such as ABB, Omron, and Carlo Gavazzi, or from Nader (UL-certified). All electrical components comply with U.S. electrical requirements.

Ø Refrigeration components are sourced from international brands such as Tecumseh, Castel, Danfoss, and DuPont.

Compliance with Standards

Ø GB/T 2423.19-2013, Test Kc: Sulfur dioxide test for contacts and connections, equivalent to IEC 60068-2-42:2003

Ø GB/T 2423.20-2014, Test Kd: Hydrogen sulfide test for contacts and connections, equivalent to IEC 60068-2-43:2003

The equipment is designed and manufactured to meet the test requirements for single or mixed corrosive gases, including sulfur dioxide (SO₂), hydrogen sulfide (H₂S), nitrogen dioxide (NO₂), and chlorine gas (Cl₂).It is also suitable for high-concentration single-gas corrosion tests using sulfur dioxide (SO₂) and hydrogen sulfide (H₂S).