WATERS CORPORATION TQ, Operator'S Manual, Page: 166 / 192

B External Connections
166 December 6, 2012, 71500126802IVD Rev. C
Connecting the oil-free roughing pump
The oil-free roughing pump is an optional alternative to the standard oil-filled
roughing pump. To connect the oil-filled roughing pump, see page 159 .
The noise reduction cover must be installed over the pump to minimize
operating noise, unless the pump is installed in a cabinet that includes sound
dampening and ventilation.
Required materials:
• Chemical-resistant, powder-free gloves
• 7-mm nut driver
• 8-mm Allen wrench
• Sharp knife
• 1-L exhaust trap bottle (included in the startup kit)
• Elbows (included in the Waters Rough Pump Connect Kit)
• NW25 tee (included in the startup kit)
• NW25 center rings (included in the startup kit)
• NW25 clamps (included in the startup kit)
TP02995
Noise reduction
cover
Exhaust port
flange
Inlet flange