Product development/quality standards
The TOZEN Group has the in-house infrastructure to conduct thorough evaluation testing to ensure that products have the required durability and displacement absorption performance.
We conduct demanding tests to demonstrate that products satisfy customer needs.
Performance evaluation
Repeated pressure fluctuation testing
Product durability and safety is evaluated while bearing in mind pressure differences due to pumps switching on and off.
Repeated displacement testing
Product performance and safety is evaluated while bearing in mind displacement caused by ground subsidence, mechanical vibrations, etc.
Repeated negative pressure testing
Product durability and safety is evaluated while bearing in mind not only temporary negative pressure, but also repeatedly-generated negative pressure.
Plant equipment Yoshikawa Headquarters Annex
Plant equipment for which a wide range of evaluation is possible, bearing in mind piping installed on the site. Reproducing cavitation and water hammer is also possible.
Exposure testing
We analyze the effect on our products of exposure to direct sunlight through regular data collection.
Vibration-isolating performance testing Vibration generators and vibration measurement devices
We evaluate the vibration-isolating performance of vibration-isolating materials and flexible joints in order to provide extensive vibration isolation.
Three-dimensional measurement device
We aim for design and development paying close attention to even small details in order to achieve safety and peace of mind.
Optical microscope
We collate data from surface inspections of non-conforming products, working to determine the causes of issues from many perspectives.
Universal testing machine（300kN）
Evaluation of materials inspections and product performance regarding the compression and tensile directions is possible.
Compact universal testing machine(2kN)
Evaluation of materials inspections and product performance regarding the compression and tensile directions is possible.
Pressure resistance test
The interior is filled with water, and evaluated to the required product pressure resistance performance.
