Third, sum up (1) the process according to the customer specific requirements, Tuthill experienced engineers will recommend to customers diaphragm vacuum pump + Roots dry vacuum unit diaphragm or Roots vacuum pumps diaphragm vacuum pump + liquid ring vacuum pumps diaphragm vacuum unit . (2) dry-type vacuum pumps diaphragm vacuum technology, the future direction for the development of energy efficient and will not pollute the environment. 21 associated with the high vacuum divide the majority of vacuum pumps will be dry diaphragm vacuum pump. (3) a new generation of energy efficient screw KINNEY dry diaphragm vacuum pump has been successful in chemical and pharmaceutical field of vacuum technology standards. (4) as the only American Roots diaphragm vacuum pumps, diaphragm vacuum pumps liquid ring, dry diaphragm vacuum pumps, diaphragm pumps slide-valve manufacturers, Tuthill Roots divide + liquid ring vacuum pumps diaphragm vacuum pumps / dry diaphragm vacuum pump / slide-valve diaphragm vacuum pump before the class divide, such as the vacuum pump unit to provide users with a one-stop shopping model, can provide a full range of vacuum systems solutions.