Emerson Neotecha Sapro Maintenance And Repair Instructions page 4

Neotecha Sapro Sampling DeviceS
Maintenance and RepaiR instRuctions
valve Seat replacemeNt
a) Bottle adaptor models
1. Wafer body design
(See Fig. 5 and Fig. 6)
You will need: repair kit - Sv-Set 1 and
Tool kit - Sv-W2.
1.1. Take the Sapro valve from the pipe line.
1.2. loosen the socket head screw (1d) and
remove the safety claw (1c).
1.3. Unscrew and remove bottle adaptor (5a).
1.4. loosen the set screw (1a).
1.5. Using the 2-pin wrench (provided in Tool
kit Sv-W2), unscrew the retaining ring (5),
to reveal the valve seat assembly o-ring
(3a), soft seal (3) and valve seat (4).
1.6. clean the bottle adaptor, valve seat and
retaining ring.
1.7. replace the o-ring (3a) and seat seal (3)
with new parts from the repair kit Sv-Set 1.
2. Flanged body design
(See Fig. 7 and Fig. 8)
You will need: repair kit - Sv-Set 1 and
Tool kit - Sv-W2.
2.1. Take the Sapro valve from the pipeline.
2.2. loosen the three set screws (5a) and
withdraw the bottle adaptor assembly.
2.3. remove the four socket head screws (1a)
and withdraw the retaining flange (5) to
reveal the valve seat assembly o-ring (3a),
soft seal (3) and valve seat holder (4).
2.4. clean the bottle adaptor, retaining flange
and valve seat.
2.5. replace the o-rings (3a, 5d) and seat
seal (3) with new parts from the Seal kit
Sv-Set 1.
2.6. reassemble by reversing the above
procedure.
Figure 5
Figure 7
Figure 6
2-pin wrench
Figure 8
4