Leak test circuit dedicated switching valve
It demonstrates its effectiveness in air circuits where leakage is not allowed. If switching between work and master is necessary, a switching valve will need to be inserted into the precise leak test circuit. Cosmo Instruments has prepared a dedicated switching valve that utilizes our expertise in leak testers. Not only does it ensure no valve leakage, but it also minimizes deformation, making it an ideal switching valve for leak testing.
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basic information
Features and Functions We offer switching valves from one to three connections depending on the target product. You can choose combinations of NO (normally open) and NC (normally closed). By installing a stop valve as an option, it becomes easy to check for leaks. Each port of the manifold is equipped with a mesh filter. *Please note that the NL select valve is not a device controlled by an air leak tester. It is necessary to prepare a PLC and solenoid valves separately.
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Switching valve dedicated to air leak test circuits
Line up（9）
| Model number | overview |
|---|---|
| NL-S2-10M | This is a select valve in a normally open state for a single line. Operating pressure range: 0~800kPa Pilot pressure: 400~700kPa |
| NL-S2-11M | This is a select valve in a normally closed state for a single line. Operating pressure range: 0~800kPa Pilot pressure: 400~700kPa |
| NL-S2-20M | This is a select valve in a normally open state for a double line. Operating pressure range: 0~800kPa Pilot pressure: 400~700kPa |
| NL-S2-21M | This is a select valve in a normally closed state for a double line. Operating pressure range: 0~800kPa Pilot pressure: 400~700kPa |
| NL-S2-22M | This is a select valve for a double line, with one in a normally open state and the other in a normally closed state. Operating pressure range: 0~800kPa Pilot pressure: 400~700kPa |
| NL-S2-30M | This is a select valve in a normally open state for a triple line. Operating pressure range: 0~800kPa Pilot pressure: 400~700kPa |
| NL-S2-31M | This is a select valve in a normally closed state for a triple line. Operating pressure range: 0~800kPa Pilot pressure: 400~700kPa |
| NL-S2-●●V | The V type is for vacuum pressure (negative pressure). Operating pressure range: 0~-100kPa |
| NL-S2-●●B | The B specification includes a ball valve. |
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Company information
The Air Leak Tester from Cosmo Instruments started with the automation of cylinder block airtightness testing in 1970. It is utilized in various fields such as automotive parts, gas, water supply, medical, electrical, electronics, and food industries. Since 1983, we have begun our overseas expansion in line with the overseas development of Japanese automotive manufacturers. Currently, we are conducting proposal activities and after-sales service activities similar to those in Japan from 24 locations in 13 countries. Recently, to respond to the electrification of automobiles, we have enabled leak testing of electrification components such as battery cases and inverters, as well as fitting tests for various power connectors, contributing to our customers' CO2 emission reduction efforts. Additionally, we have donated pressure measurement equipment to technical schools in South Asia and Southeast Asia to improve the quality of education, engaged in technical exchanges with local machinery manufacturers, and worked to enhance the industrial foundation through the production of high-quality leak testing equipment locally. We will continue to deliver the value of "quality" by applying our wisdom on-site for our customers and to contribute to the development of local communities.