1.1 High-grade Stainless steel for casing of motor and pump, diffuser, impeller, outlet and inlet, shaft coupling, fastener, etc, elegant appearance, strong decay resistance, outstanding durability；
1.2 Motor adopts a fully sealed structure and import mechanical sealing. With strong sealing, the motor diving depth is up to 150m；
1.3 The motor is equipped with angular contact ball bearing at one end, bearing large axial force；
1.4 The overflow part is laser welded of high-grade stainless steel AISI304, decay resistance, wear resistance and durability；
1.5 The outlet is equipped with stainless steel check valve, to effectively prevent the impact of water hammer；
1.6 Using modified PTFE and NBR wear ring and NBR bearings, to ensure the long time of efficient and stable operation.