Marwin Valve 9000F Series Two Piece Аква техника - Manual (Page 3)

Clean inside of body and stem housing. Light 5.
grease, compatible with line fluid, can be used on
ball, seals and stem surface.
Note: A spare parts list is available for this valve.
Please refer to explosion view below for identifica-
tion. Please specify specific valve number to ensure
proper parts are ordered. Marwin Valve does not
take responsibility for incorrectly ordered spare
parts.
Re-Assembly
A. Stem
Replace thrust washer (8) then insert the stem from 1.
inside the body.
Install stem packing (7), gland nut (6) and tighten 2.
until snug, then one-half turn. To avoid rotation of
stem, insert the handle and ball.
Install handle (2) and handle nut (3) then tighten. 3.
B. Ball, Seats and Seals
Place the stem in closed position and insert the 1.
ball, aligning groove in ball with bottom of stem.
Position the ball in the open position then insert the 2.
seats and body seals.
Thread in end cap. 3.
Spare Parts Kit
Item # Quantity Part Name
7 1 Stem Packing
8 1 Thrust Washer
9 2 Seat
12 1 Body Seal
Testing
After completing the reassembly, check that valve 1.
operates smoothly by opening and closing valve
several times.
If entire valve was removed from line and if facili- 2.
ties are available, test the ball valve to appropriate
specifications.
Troubleshooting
A. Stem Leakage
Leakage in the stem packing area may be elimi- 1.
nated by increasing the torque on the gland nut (6)
in one-quarter turn increments. If leakage persists,
replace stem packing (7).
B. Body Seal Leakage
Check the torque of the end cap. Replace body 1.
seal (12) if leakage persists.
C. In-Line or Seat Leakage
Check to be sure valve is in fully closed position. If 1.
leakage persists, the valve must be disassembled
and damaged parts replaced.