9
6. Ball Valves and Valve Seats
6.1 Removal
（
Figure displays Fi/
□
/R
）
・
Use the dedicated tool (valve cap remover) to remove
the valve cap and valve stopper. [Fig.6-1 and 6-2]
(Dedicated tool
①
for DP-10Fi or dedicated tool
②
for
DP-20Fi)
・
Remove the O ring.
・
Remove the balls, valve seats, O rings and funnel.
Be sure to use the dedicated tool
④
(sleeve remover) to
remove the funnel and valve seat. [Fig.6-3]
（
Fi/
□
/R
）
（
Fi/
□
/H
）
Dedicated tool
Valve cap
Valve stopper
O ring
O ring
O ring
Valve seat
Valve seat
Funnel
Dedicated tool
Valve cap
Valve stopper
Valve seat
O ring
Funnel
Valve seat
O ring
Fig.6-4
O ring