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equipment such as high pressure 42.0MPA water cutting machine, 12000W laser
cutting machine, line length 290 meters electrostatic spraying line, valve assembly
line, to ensure the physical and chemical properties and surface accuracy of the
main parts of the company's products, to ensure superior product performance, so
thatChisun company'sexcellence production process maintains a far ahead of the
level in the same industries zone.
Since the establishment of the company, all the staff work hard to pursue
sustainable development and technological innovation, and company have won
a number of honors and certificates. In January 2004, the company registered
CHISUN trademark. In May 2006, pneumatic V-type cut off regulating ball valve,
this scientific and technological achievement was rated as the leading level in
China; Non-friction zone metal seal knife gate valve, its pressure test even exceeds
the American MSS-SP-81 leakage standard, this scientific and technological
achievement is rated as the international advanced level; In December of the same
year, the company was rated as a small and medium-sized enterprise in science
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valve won the provincial new products; In November 2008, the non-frictionzone
metal seal knife gate valve was listed as a national torch project and rated as a new
national key product; In December of the same year, the company was named
longwan District patent demonstration enterprise.In 2009, self-sealed knife gate
valve was developed as a provincial new product;In December 2011,company
productspassed TS2733744-2015, grade B2; In April 2016, the company was
rated as Wenzhou Science and technology innovative enterprise; In June of the
same year, two-way fully sealed special knife gate valve with washing device
won the third prize of regional Science and Technology Award; In December,
three products of bidirectional sealing anticorrosive wear-resisting knife gate
valve, bidirectional sealing medium pressure knife gate valve and unidirectional
sealing fully enclosed knife gate valve were evaluated as provincial new products;
In the same year was rated as the province A - class contract - abiding heavy
credit enterprises; In February 2017, CHISUN was named as longwan Famous
Brand trademark; In August , the company was rated as a provincial high-tech
small and medium-sized enterprise. In September, CHICUN trademark was
successfully registered in the United States. In November 2018, the company
was rated as a national high-tech enterprise; In April 2019, the company passed
ISO-9001: 2015 Quality management system certification;In September, THE
Russian ECA certificate was obtained; Obtained the CE certificate of European
Union in October;In2021,CHISUN trademark was successfully registered in EU.
In 2021, polyurethane lined knife gate valve was successfully developed and
put into production line.In addition, over the years, the company has more than
40 patent certificates, including 2 invention patents (a knife gate valve to valve
body lining manufacturing process and a special anti-acid and alkali corrosion
lining polyurethane knife gate valve and manufacturing process), scientific and
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