Flowserve LRG 16-40 - Manual (Page 15)

5
Installation
Mounting conductivity electrode
. Check seating surfaces of threads or mounting flange provided on vessel or boiler standpipe
(see Fig. 3 and Fig. 4). If necessary rework the surfaces according to the specifications indicated in
the drawing.
. Place joint ring E onto the seating surface D of the conductivity electrode.
3. Apply a light smear of silicone grease to the electrode thread.
4. Screw conductivity electrode into thread or flange provided on vessel or boiler standpipe
(see page ) and tighten with an open-end spanner A. F. 4 mm. The torque required when cold is
50 Nm.
Installation notes
Attention
n
The seating surfaces and threads on the vessel and mounting flange must be
accurately machined.
n
Use only the supplied ring joint ∅ 33 x 39, form D, to DIN 7603,
material: .430, bright-annealed!
n
Do not insulate the threads with hemp or PTFE tape!
n
Do not lag the electrode body.
n
Install electrode horizontally or with a vertical inclination. The measuring surface must
be permanently submerged.
n
Provide a spacing of approx. 30 mm between the lower end of the measuring tube
and the boiler wall, the smoke tubes and any other metallic fittings as well as the low
water level.
n
The specified torques must be strictly observed.
Note
n
For the approval of the boiler standpipe the relevant local and national regulations must
be observed.
n
Three examples of installation are shown on pages 8 and 9.