Agilent Technologies TwisTorr 74 FS Notice De Mode D'emploi page 328

17 Technical Information
Vent Accessories
Figure 38
Do not overtighten the valve as this may damage the thread on the pump.
CAUTION!
Then connect the cable from the valve to the suitable connector on
the controller.
328/352 TwisTorr 74 FS User Manual / 87-901-053-01 (A.00)