【Q1】Where can I find the nearest sales office (contact information) ?

【Q2】I would like to share a link to this website. Do I need your authorization?

【Q1】What kind of valves are handled by NDV?

【Q2】What do the symbols on NDV valves mean?

【Q3】Are there any restrictions on the valve orientation at installation?

【Q4】Regarding pneumatically operated valves, what does "Singl-acting", "Double-acting", "Reverse-acting" and "Direct-acting" mean?

【Q5】Why can multiple actuators be selected with a single nominal diameter?

【Q6】What is NAMUR standard?

【Q7】What is Cv?

【Q8】Please advise how long are the spare parts available?

【Q9】What kind of information is required when requesting an estimate for a valve?

【Q10】Are there products or parts that are regulated for export?

【Q11】How do you comply with environmental regulations?

【Q1】What is the history of diaphragm valves?

【Q2】What are the structure and features of the diaphragm valve?

【Q3】What kind of equipments are diaphragm valves used in?

【Q4】How should I select the combination of the body and the diaphragm?

【Q5】What is the number of durability and the service life of the diaphragm?

【Q6】What is the working pressure and temperature range of the diaphragm valve?

【Q7】Please advise how to replace the diaphragm?

【Q8】 Is it possible to replace the rubber-made diaphragm with PTFE diaphragm?

【Q9】What are the features of diaphragm valves wih lining?

【Q10】What are the applicable flange standards for diaphragm valves?

【Q11】What is the "Minimum liquid pool angle" for the diaphragm valve?

【Q12】What ancillary device is avialble for pneumatically operated diaphragm valves?

【Q13】What is the difference between buffing and electropolishing?

【Q1】What are the structure and features of the ball valves?

【Q2】What are the available connection standards for the ball valves?

【Q3】What is the purpose of the V-port valve?

【Q4】Do you have ball valves with excellent corrosion resistance?

【Q5】Do you have ball valves with the main body of material FC200?

【Q6】What is the lowest operating temperature for a ball valve?

【Q7】Can the ball valve be used at negative pressure (vacuum)?

【Q8】What is the "flow direction" of the ball valve?

【Q9】What is abnormal pressure rise? Also, please tell me how to deal with it.

【Q10】What parts are consumables to be replaced?

【Q11】What is the recommended time of replacement for the sheet?

【Q1】What are the structure and features of the butterfly valve?

【Q2】Do you have butterfly valves with excellent corrosion resistance?

【Q3】Do you have butterfly valves for powder for pharmaceuticals and foods?

【Q4】Are there any precautions when piping the butterfly valve?

【Q5】What parts are consumables to be replaced?