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May 2026

5. Gas flow detector

Quick Q&A: What’s the Difference Between Differential Pressure and Flow-Type Leak Detectors? Everything You Need to Know in One Article—Don’t Make the Wrong Choice Again

This article systematically compares the key differences between differential pressure-type and flow-type airtightness testers. Differential pressure-type testers detect micro-leaks by comparing pressure changes between the test specimen and a standard reference chamber. They are resistant to temperature drift, offer high accuracy, and provide excellent repeatability, making them suitable for applications with high sealing requirements, such as new energy battery packs and automotive electronics; Flow-type testers directly measure the volume of gas leaked per unit time. They excel at identifying large leaks, measuring gas flow rates, and detecting blockages, making them suitable for flow performance analysis of valves, nozzles, and permeable membranes. The two types are not ranked as superior or inferior; rather, the choice depends on whether the testing objective is to determine "leakage" or "gas flow."

ePTFE Membrane Hydrostatic Pressure Tester

Real-Water Coating Combined with Precise Pressure: A Comprehensive Guide to the Efficient Testing Logic Behind the Water Resistance of Waterproof Breathable Membranes

This article introduces the Water Pressure Resistance Tester for Waterproof and Breathable Membranes launched by JCGK. Utilizing a "real water coating + pneumatic loading" method to simulate real-world operating conditions, it provides an intuitive assessment of the water-blocking capabilities of membrane materials such as ePTFE. The device covers the membrane surface with water and applies pressure, displaying real-time leakage data. It supports high-definition observation of failure phenomena such as water droplets, wetting, and pinholes on the membrane surface, and allows for photo and video recording for archiving. It is suitable for R&D validation and mass quality inspection in industries such as new energy, automotive electronics, and consumer electronics.

A leader in the air tightness testing industry

Quick Q&A: Why do distributors prefer to partner with Jingcheng Engineering, a direct manufacturer of airtightness testers?

This article uses a Q&A format to analyze why JCGK, a leading manufacturer of airtightness testing equipment, has adopted a dual-track approach combining "in-house R&D" with "channel partnerships." The article notes that due to the geographically dispersed nature of the industrial equipment market and the high demands for service responsiveness, technology-driven manufacturers must rely on intermediaries to provide localized services. JCGK exports its core technologies through an ODM model, while intermediaries cover regional markets under their own brands, thereby achieving a specialized division of labor between technical capabilities and service capabilities.

Five-channel Respiratory Cycle Tester

Breaking Down Barriers Between Research and Production! Jingcheng Engineering Partners with Leading Universities to Establish New Standards for Airtightness Testing

This article, written by JCGK, addresses the selection of airtightness testing equipment for university laboratories. It compares the differences between industrial and research testing, analyzes the shortcomings of imported equipment, introduces case studies of industry-university-research collaborations with multiple universities, emphasizes customized services and data traceability capabilities, and covers research fields such as materials, aerospace, new energy, and healthcare, with the aim of promoting domestic airtightness testing solutions.

Jingcheng Gongke airtightness tester in the automated production line application

Quick question and answer: What makes the domestic source manufacturer Jingcheng Gongke's airtightness instrument can replace the imported brand?

This paper objectively analyzes the domestic airtightness testing equipment to replace the feasibility of imported brands, pointing out that in the mainstream industrial scene of 90% China's domestic production already has the strength of the level of replacement, but there is still a gap in the extreme high-precision areas. Take the national brand Jingcheng Gongke JCGK as an example, emphasizing that the core of "equal replacement" is the ability to land a complete set of solutions rather than low price competition.

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