Waters Xevo TQ MS Operator And Maintenance Manual page 156

2. Attach the NW25/NW40 adaptor to the roughing pump inlet flange
using an NW40 center ring, and then secure the connection with an
NW40 clamp, using the 7-mm nut driver to install the clamp.
3. Attach the NW25 tee to the NW25/NW40 adaptor using an NW25 center
ring, and then secure the connection with an NW25 clamp, using the
7-mm nut driver to install the clamp.
Elbow
4. Attach the elbow to one of the open ports on the NW25 tee using an
NW25 center ring, and then secure the connection with an NW25 clamp,
using the 7-mm nut driver to install the clamp.
5. Attach the flanged end of a length of 1-inch ID vacuum hose to the
remaining open port on the NW25 tee using an NW25 center ring, and
then secure the connection with an NW25 clamp, using the 7-mm nut
driver to install the clamp.
6. Attach the flanged end of a second length of 1-inch ID vacuum hose to
the open port on the elbow using an NW25 center ring, and then secure
the connection with an NW25 clamp, using the 7-mm nut driver to
install the clamp.
7. Connect the free ends of the two lengths of vacuum hose to the two,
1-inch OD, straight, vacuum ports on the mass spectrometer's rear
panel.
C-10 External Connections
1-inch ID vacuum hose
Clamps
NW25 clamp
NW25 tee
NW25/NW40 adaptor
TP02625