Zhejiang coosai pump Co.,LTD is a more than 30 years production experience manufacture for pneumatic diaphram pump,and also one of the earliest manufacture for pneumatic diaphram pump in China.After years research and development , QBY,QBK,QBY3,QBY3W,QBY4 5 series pneumatic diaphram pump have been developed , their mebrane diameter can reach 128mm,140mm,155mm,170mm,195mm,228mm,248mm,298mm,340mm,370mm,450mm,which are the most complete series of pneumatic diaphram pump in China.                   

Our productions can meet mineral production ,laboratory’s requirements for various production and scientific research processes.Our factory also product Sanitary pneumatic diaphragm pump, electric diaphram pump,WB electric reciprocating pump,WBR high temperature electric reciprocating pump,PPR Self-priming centrifugal pump.

Our products have passed ISO9000 International quality certification.Products have been exported to Germany, Japan, Greece, Italy, India, Australia, the United States etc.

Our company will spare no efforts to improve product quality as always , and provide high quality service for our clients . we hope esteemed customers can give us valuable comments and suggestions.

Your valuable support and feedback are very much welcomed!