Suitable for
  • Suckler cows
  • Cops
  • Horses
Conditionally suitable for
  • Dairy cows
  • Calves
  • Ponies

Please adhere to the local and national installation regulations (e.g. EN1717, DIN VDE0100)

Please order transformer separately!

Thermolac 40

Thermolac 40, 1 ball

Ref. 433800

Technical data

  • Material


  • Weight 23,00 kg
  • Length 66 cm
  • Width 64 cm
  • Height 56 cm
  • Frost-free down to -30 °C

Energy Free Frost-Protected Ball Waterers

How does a ball waterer operate?

Water comes from the ground at a temperature of about 10 °C and fills the drinking containers until the balls seal off the drinking holes. Whenever animals drink, the float valve allows the consumed water to be replaced. The energy of the replacement water flowing in keeps the water warm when it is cold, and cool when it is hot. By means of the special ball-valve system, and without any additional power requirements, fresh, clean water which is free from algae, is provided at both -30 °C as well as +30 °C.

  • While the animal is drinking, the ball rolls away
  • Water supply must come from below frost level
  • Water pressure: 1 to 5 bars
  • A minimum of 5 animals guarantees frost-free operation down to -15 °C, or with 15 animals down to -40 °C
  • Prepared for connection to 1/2” water line
  • The ball waterer should be positioned, slightly raised, on a 15 cm thick concrete platform, each side of which is 30 cm wider than the drinker itself
  • Large drain openings allow regular, quick and complete cleaning of the trough
  • Capacity: 40 l
  • 15 - 25 animals
  • Water flow: 38 l/min (at 5 bars)
  • 1/2" hookup


  • 6 wing nuts for easy opening
  • The float can be easily adjusted or turned off
  • Simple connection (½”) to the water supply using armoured tubing
  • Large drain opening (Ø 100 mm) for easy cleaning
More information
More information
  • Package type: unpacked
  • Cargo type: Parcel goods (XL)
  • All temperatures given in respect of frost safety relate to the use in livestock buildings without direct influence from wind and weather

Documents for downloading (Man = operating instructions; Spa = spare parts list; Inf = additional documents)
  • 43380X_Man_Thermolac_40-75.pdf
    2.33 MB
  • 43380X_Spa_Thermolac-40-75-B-GV.pdf
    0.17 MB