For domestic applications, you would normally select a single pump system. If the wastewater pump is for a commercial kitchen you would select a dual, duty standby configuration so service in the restaurant can continue whilst you are awaiting a [...]
A high-level alarm can be specified as an extra. Alarms will have volt free contacts for a BMS and can be connected to solenoid valves to shut of incoming water feed to dish / washing machines for example.
Your standard submersible pump is designed to operate with fluid temperatures up to 40 deg c, for short periods only, up to 60 deg c. You need a dedicated hot wastewater pump if the temperatures are above this.
If the pump is fitted with a float arm this will automatically start / stop the pump. Dual pumps for duty standby will need an additional control panel.
You will need to know the following information about your application. Then call a dedicated pump expert to select the correct product for you. How far do you want to pump, height, electric supply- Single or Three phase, liquid nature- [...]