Products Address: http://www.gdnashvacuum.com/product/showproduct.php?lang=cn&id=118 which provides water ring vacuum pump by us using high quality raw materials and manufacturing equipment, vacuum pumps are designed to effectively adapt to our customers needs. The water ring vacuum pump is used to form a pulp molded products, soil remediation, vacuum distillation of petroleum refining and vapor recovery systems. Water ring vacuum pump applications: food processing industry, textile industry, chemical and pharmaceutical industries.