High and low temperature sealing

High and low temperature sealing maintains contact pressure through elastic materials during temperature changes to prevent medium leakage. It is used for connection points such as pipelines and valves that need to withstand environments ranging from -60℃ to 300℃, ensuring the sealing reliability of equipment under temperature variations.
Selection
When selecting, consider matching the usage temperature range with the material's temperature resistance, determining the material type based on media compatibility, aligning the pressure rating with the sealing structure design, adapting the seal size to installation space constraints, and choosing flexible sealing forms for dynamic operating conditions.

Terms

Standards

Instruments

Adopt digital P.I.D. temperature control, temperature control accuracy +/- 1 ℃, heat sealing pressure 0~ 0.7Mpa adjustable, double cylinder structure to ensure pressure equilibrating, heat sealing knife aluminum alloy material uniform heat conduction, support automatic and manual mode.

$ 1663.00

Adopt digital P.I.D. temperature control, upper and lower heat seal independent temperature control, heat sealing temperature range RT +~ 300 ℃, heat sealing pressure 0.05~ 0.7MPa, support manual and foot pedal start mode, anti-burn safety design.

$ 1413.00

Temperature range RT +~ 300 ℃, temperature control accuracy +/- 0.2 ℃, independent temperature control of upper and lower heat sealing heads, good thermal conduction effect of brass heat sealing knife, double-decked thermal insulation design to ensure safe use.

$ 1764.00

Using sealing high temperature digestion technology, equipped with imported high-luminance Illuminant and PID automatic temperature control system, digestion temperature accuracy of +/- 1.0 ℃, can process 16 water samples at the same time, Optical inspection stability is excellent.

$ 1355.00

The heat sealing paraMeters are tested by hot pressing sealing method, the temperature control accuracy is up to +/- 0.2 ℃, the heat sealing time is adjustable from 0.1 to 999.9s, and the upper and lower heat sealing heads are supported for independent temperature control and a variety of heat cover customization to ensure accurate and reliable test data.

$ 2494.00

Adopt sealing high temperature digestion technology, measurement range 0.02~ 10mg/L, Indication Error ≤ +/- 5% FS, equipped with imported high luminance Illuminant and narrow band filter system, support 16 water sample batch processing, Optical inspection stability and good corrosion resistance.

$ 1274.00

The heat sealing paraMeters were determined by hot-pressing sealing method, the temperature control accuracy was +/- 1 ℃, the heat sealing time was adjustable 0.1-999 s, the upper and lower heat heads were independently controlled, and the double-decked heat insulation design ensured the safety of use.

$ 1200.00

The heat sealing performance was determined by hot pressing sealing method, the temperature control accuracy was +/- 0.2 ℃, the heat sealing time was 0.1~ 999.9s, the upper and lower heat heads were independently controlled, and the double-decked heat insulation design ensured safety.

$ 1603.00

Temperature range RT +~ 300 ℃, temperature control accuracy +/- 0.2 ℃, heat sealing time 0.1~ 999.9s adjustable, heat head with brass material to ensure uniform heat conduction, double-decked thermal insulation protection to ensure safe operation.

$ 3015.00

Using compressed air drive and vacuum generator, equipped with High Accuracy pressure sensor, Vacuum Level range -90~ 0kPa, vacuum accuracy level 1, can be immersion method and expansion method two kinds of sealing performance test.

$ 699.00

Glass sealing barrel wall thickness of 15mm, automatic constant pressure gas without manual operation, vacuum accuracy level 1, support 0~ -100kPa range, suitable for a variety of Encasement sealing test.

$ 764.00

Using 15mm wall thickness Organic Glass sealing barrel and precision pneumatic components, vacuum accuracy level 1, support 0~ -100kPa range test, with electronic pressure and digital pressure display function.

$ 691.00

Vacuum generator to achieve rapid vacuum, accuracy of 1, support 0-9999 seconds holding time automatic control, equipped with imported thickened acrylic sealing barrel, wall thickness 15-20mm, to ensure stable and reliable testing.

$ 756.00

The 0-16bar positive pressure method is used to test, which avoids the low pressure limit. The sealing situation can be judged by observing the leakage or pressure drop by inflation and pressure. Sensitivity is high and the reading is accurate.

$ 1138.00

Adopting 15mm wall thickness high-quality Organic Glass sealing barrel, equipped with automatic constant pressure gas filling function, Vacuum Level range -90~ 0kPa, to achieve automated testing process without manual operation.

$ 748.00

Articles

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This paper discusses the application of rapid temperature change high and low temperature test chambers in evaluating the thermal fatigue of PCB board solder joints. Solder joint fatigue is primarily caused by differences in material thermal expansion, and the test chamber simulates thermal stress through temperature cycling to accelerate the fatigue process.
Application of Three-Chamber High and Low Temperature Test Chambers in Rapid Temperature Cycling for Electronic Products
The three-chamber high-low temperature test chamber is used for reliability testing of electronic products, enabling rapid temperature transitions through independent high temperature, low temperature, and test zones. Compared to traditional single-chamber equipment, it reduces temperature change time and enhances testing efficiency.
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This article introduces how to use a seal tester to evaluate the pressure resistance and leakage performance of composite film bags. The test primarily involves applying controlled pressure inside the packaging and observing pressure changes or leakage to assess the quality of the seal.
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This article introduces how to use a high-low temperature alternating test chamber to determine the low-temperature brittleness temperature of plastics.
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Negative pressure method leak detector for testing vacuum packaging seal integrity
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Shore hardness tester measures the hardness of rubber sealing rings.
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Sealing Tester Measures Leak Points in Flexible Packaging Bags.
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Thermal Shock Test Chamber Measures Film's Temperature Change Resistance
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Insulation resistance tester measures rubber sealing gaskets.
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Heat Sealing Tester Determines the Optimal Heat Sealing Temperature for Films
A heat seal tester is used to determine the optimal heat sealing temperature of films to ensure the sealing strength and integrity of packaging. During testing, by setting a temperature gradient and fixing parameters such as pressure and time, samples are heat-sealed at different temperatures, and then their strength is measured.
Daily Maintenance and Common Troubleshooting Guide for Titrators in the Laboratory
This guide introduces the daily maintenance and common troubleshooting methods for titrators. Daily maintenance includes cleaning and sealing checks of burettes and liquid pathways, proper storage and performance verification of electrodes, as well as inspections of the instrument's external environment and mechanical components.
Negative Pressure Method Sealing Tester for Detecting Leakage in Food Packaging
The negative pressure method seal tester creates a pressure difference inside and outside the packaging by evacuating air to detect leaks in food packaging. If there is a leak in the packaging, water will enter the packaging or produce continuous bubbles under the pressure difference, thereby determining the seal integrity. The test requires controlling parameters such as vacuum level and time, and should be conducted in accordance with relevant standards.
Principle and Application of Vacuum Decay Leak Testing Equipment
The vacuum decay leak tester is a non-destructive detection device that quantitatively detects leaks by monitoring minute pressure changes in the test chamber after vacuum evacuation.
Thermal Shock Test Chamber Evaluates Coating Thermal Stability
The thermal shock test chamber simulates sudden temperature changes by rapidly switching between high and low temperature environments, used to evaluate the thermal stability of coatings. In practical applications, coatings may develop internal stresses due to drastic temperature fluctuations, leading to issues such as cracking and peeling.