Product Name: Double Pump Constant Pressure Water Pump Control Trademark: BEDFORD Transport Package: Wooden Case Origin: Guangzhou, China Product Description B600S complete set intelligent constant pressure water supply equipment(double pump)Characteristics: . Smooth, quiet operation . Choice of pressure settings . Built-in pumping system protectionWith a constant pressure system, you don't have to schedule your day around your water usage. BEDFORD constant pressure controllers vastly improve your home water system. Using variable speed technology, BEDFORD continuously monitor water demand and adjust the speed of your pump to provide the water you need without pressure fluctuations. Available in a wide variety of ratings, these systems also provide: . Horizontal Single Pump Constant Pressure Variable Water Supply EquipmentPower range: Single phase 220V: 0.37kw~7.5kwThree phase 220V: 0.75kw~7.5kwThree phase 380V: 0.75kw~7.5kwFour sensors are selectable: . Pressure transmitter 4~20mA. Transmissible pressure gauge. Electric contact pressure gauge . Pressure switchApplications: Industiral and agricultural production, high and low-rise residences, villas, schools, hospitals, large community-based, air-source heat pump hot and cold water systems, water treatment, water supply systems, such as energy-efficient building on various occasions