[Three rain valve to recommend the star product - Mechanical seal] description: 1. according to user needs with a dual-rail automatic coupling installation system WQ15-40-5.5 pumps, it brings great convenience to installation and maintenance, people can do not have to get into the sump. 2. WQ60-11-4 pumps can be used in the whole head, but to ensure that the motor is not overloaded. 3. There are two types of installation, fixed automatic coupling installation system pumps, mobile free installation system. [Three rain valve to recommend the star product - Mechanical seal] Introduction: AS, AV using vortex impeller, suitable for pumping sewage containing solid particles; QW (WQ), JYWQ Series flow impeller for pump send fibrous dirt, mud and other sewage and waste water; AS, AV, QW (WQ) series and foreign brands common type of submersible sewage pumps are suitable for shorter stays, less sediment pollution, wastewater pumping up; JYWQ Series Automatic stir submersible sewage pumps and can be used for the bottom of the trash pump pit certain degree of agitation. WQ30-22-4 pumps, water pumps GB selected three rain (certified), Guizhou pumps provided by Valve Co., Ltd. Tianjin three rain. Valve Co., Ltd. Tianjin three rain (www.tjsymf.com) (www.tjsymf.com) is a leader in Tianjin, seals, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In three rain valve leadership with the staff warmly welcome all inquiries negotiations to create three rain valve a better future.