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Text of the page (random words):
dalian dv valve quality builds trust dalian dv valve co ltd dalian dv valve co ltd home about dv products network news corporate culture careers certifications contact dv english home about dv products network news corporate culture careers certifications contact dv 语言 language 中文 english русский français 日本語 0411 86422001 dldv dldv com cn scroll down about us dalian dv valve co ltd products cover nuclear industry military petrochemical power long distance pipelines lng and many other fields and industries the company has the ability to independently research design and manufacture high and medium pressure steel valves and forgings it is the vice chairman unit of china general machinery industry association valve branch national high tech enterprise national key little giant enterprise national postdoctoral research workstation learn more corporate mission committed to providing comprehensive and reliable valve application solutions and technical support integrity first customer supreme solve problems improve efficiency experience feedback continuous improvement be grateful learn with humility corporate culture development strategy endless pursuit of technology r d endless pursuit of system optimization endless pursuit of digital transformation integrity self motivation learning agility open mindedness self reflection self discipline customer service unity loyalty hard work gratitude core values products explore dv s core products view details dn50 axial flow check valve nuclear grade axial flow check valve is a key basic protective equipment in various fluid systems of nuclear power plants mainly used to prevent medium backflow avoid damage to system equipment caused by backflow and ensure safe and stable operation of the system it is widely used in key parts such as the water supply system cooling water system and auxiliary system of nuclear and conventional islands and its reliability directly affects the operational safety and efficiency of nuclear power plants in 2025 through industry technology achievement appraisal the appraisal committee believes that the prototype of the developed axial flow check valve product has independent intellectual property rights and its main performance indicators have reached the advanced level of similar international products which can be promoted and applied view details dn150 axial flow check valve nuclear grade axial flow check valve is a key basic protective equipment in various fluid systems of nuclear power plants mainly used to prevent medium backflow avoid damage to system equipment caused by backflow and ensure safe and stable operation of the system it is widely used in key parts such as the water supply system cooling water system and auxiliary system of nuclear and conventional islands and its reliability directly affects the operational safety and efficiency of nuclear power plants in 2025 through industry technology achievement appraisal the appraisal committee believes that the prototype of the developed axial flow check valve product has independent intellectual property rights and its main performance indicators have reached the advanced level of similar international products which can be promoted and applied view details nuclear grade y shaped bellows globe valve the basic design function of a nuclear grade y shaped bellows globe valve is to cut off or connect the medium flow in the pipeline under required operating conditions allow the medium to flow when the valve is opened when the valve is closed it should be ensured to be cut off the valve can only be in the fully open or fully closed position the prototype has passed comprehensive identification tests such as cold and hot life cold and hot alternation cold and hot cycle fluid blockage vibration aging earthquake and end loading and can meet various functional requirements under operating conditions view all products culture center experience the power of dv culture union activities 2026 08 10 step forward on the waves fully open the valve force large scale valve team building activity view details party building 2026 05 29 raise the party flag high to ensure supply work together to tackle challenges and build new achievements view details party building 2026 05 29 party building leads the aggregation of strength and hualong demonstrates its responsibility in tackling challenges view details view all culture activities company qualifications international authoritative certifications trustworthy quality gold award at the international fluid machinery exhibition china general machinery industry association type test certificate national pump and valve product quality inspection and testing center occupational health and safety management system certification shenzhen huantong certification co ltd api certification certificate api ce certification ce view all certifications news updates stay informed with dv 2026 06 29 da gao the signing ceremony for the strategic capital increase of dalian dagao valve has come to a successful conclusion as the industry gathers strength to embark on a new journey together read more 2026 06 23 da gao the research team of nanning federation of industry and commerce visited dalian university for inspection and research on the college entrance examination read more 2026 04 14 big gao the first domestic device the great nation heavy equipment has been officially shipped read more view all news dalian dv valve co ltd dalian dv valve co ltd to become a benchmark enterprise in the valve industry quick links home about dv products network news careers certifications contact dv language 中文 english русский français 日本語 contact us no 272 yaojia road ganjingzi district dalian company phone 0411 86422001 company fax 0411 86422600 company email dldv dldv com cn sales email wangxiang dldv com cn company zip code 116037 2026 dalian dv valve co ltd all rights reserved icp license no 辽icp备2021002475号 public security filing no 辽公网安备21021102001941号