Agilent Technologies TwisTorr 74 FS Notice De Mode D'emploi page 326

17 Technical Information
Water Cooling Kit Connection
The assembled kit must be screwed into the suitable holes of the
pump body with a recommended closing torque of 5 Nm.
Cooling may be carried out either through an open circuit with
eventual discharge of the water, or using a closed circuit cooling
system.
The water temperature must be between +15 °C and +25 °C, with an
inlet pressure between 2 and 4 bar. This allows a flow higher than 65
l/h.
NOTE The water electrical conductance must be ≤ 500 µs/cm. When the conductance
is higher, in closed water circuit, the use of up to 20 % of Ethyl-Glycole is
suggested.
326/352 TwisTorr 74 FS User Manual / 87-901-053-01 (A.00)