Household waterproof Automatic pumps

Operating Conditions:

• Liquid temperature up to 40°C
• Ambient temperature up to 40°C
• Suction lift up to 9 m

Motor

• Two-pole induction motor (n-2900 rpm)
• Insulation Class B
• Protection IP44

Structures Features

• Cast iron pump body
• Stainless steel mechanical shaft seal (graphite to ceramic)
• Brass impeller with radial peripheral blades
• Superior steel or stainless steel shaft
• With thermal protector for all single phase motor
• Anti-rust design with brass fittings to prevent the rust from jamming the impeller (Optional)
• Pump case with brass front cover are removable for easy maintenance
• With plastic cover for waterproof.

Installation and Application

These pumps are suitable for handling clean water not containing abrasive particles and chemically non-aggressive fluids at temperatures of not more than 40°C. Reliable, compact, economical and simple to use, they are particularly suitable for domestic applications, such as water supply and the automatic distribution of water from storage tanks, watering gardens, lifting water from tanks or wells down to a depth of 8m. The pump is supplied with a check valve on the suction side so that no foot valve is required.

This type pump is provided with a pressure tank and a pressure switch which controls starting and stopping the pump. When the pump discharge pressure increases to a setting point (e.g.1.7 bar), the switch cuts off, and the motor stops. At the same time compressed gas in the tank forces water out of tank, when the pressure decreases to a setting point (e.g. 1.1bar), the switch cuts in and the motor restarts. A new cycle begins. This makes pump operating in a setting region.

Technical Data at n=2850