NRA pump operation and maintenance cost savings

Original status: 48 553 CZK/year

The sealing of the pumps with a cord caused frequent maintenance, leakage of the medium with the risk of injury to workers and high water consumption.

• Sealing cord: 480 CZK
• Sleeve: 1 500 CZK (replacement 1-2 times a year)
• Ongoing maintenance: 5 200 CZK
• Medium leakage: 1 200 CZK (min. 30 m3/year)
• Bearings: 2 400 CZK
• Energy: 37,773 CZK (the cord brakes the motor, to overcome this friction, a minimum of 4-8% of the motor power is needed)