Instructions EF35002 - 08/10
Camflex
®
II 35002 Series Control Valves
F.
Place upper guide bushing (21) on the shaft (19).
G.
Place plug (4) in body so it rests on the seat.
H.
Insert the shaft sub-assembly into the body (1) and
engage plug (4) and lower guide bushing (22).
Note: The shaft (19) should be inserted into the plug so
that when the plug is seated, the slot at the outer end of
the shaft is perpendicular to the flow through the valve.
In case of 35000 SB, separable bonnet version, follow
the operations described from N to U.
I.
Install the packing box ring (23), bevel side out, over the shaft
(19) and into the valve bonnet being sure that the hole in the
ring is aligned with the threaded port in the bonnet.
J.
Apply a suitable lubricant to the threads of the safety pin
(16) and screw into the body neck and tighten.
CAUTION
CAUTION
WARNING
DANGER
The Safety Pin is a safety device which must not be
replaced by a plug. Use only genuine Masoneilan
supplied safety pins. Pin must engage hole in packing
box ring (23). Test by manually pulling on the shaft to
verify engagement.
K.
Install packing (17) insuring that the skive cut of each piece
of packing is offset approximately 120° from that of the
adjacent piece of packing.
Note: Sizes 1" thru 3" (DN 25 through 80) use 7 pieces
of packing; sizes 4" thru 12" (DN 100 through 300) use
6 pieces of packing.
L.
Install packing follower (15) rounded, bevel side out.
M.
Proceed to Section 10.6 on seat ring alignment.
N through U apply to separable bonnet design only:
N.
If necessary, install the studs (103) in the bonnet (102).
O.
Install the stop ring (100).
P.
Place the gasket (101) in the groove of the bonnet. The old
gasket (101) must not be re-used.
Q.
Place the bonnet with the studs on the body and screw the
nuts (104).
R.
Tighten the nuts (104) according the table of Figure 11.
Valve Size
Torque lb.ft
Torque m.N
1" (DN 25)
22
30
1
1
⁄
2
" (DN 40)
2" (DN 50)
3" (DN 80)
55
75
4" (DN 100)
55
75
6" (DN 150)
107
145
Figure 11
Note: It is important to tighten the nuts step by step,
during the tightening the bonnet flange must keep the
shaft axis aligned.
S.
Install packing (17) insuring that the skive cut of each piece
of packing is offset approximately 120° from that of the
adjacent piece of packing.
Note: Sizes 1" through 3" (DN 25 through 80) use 7
pieces of packing; sizes 4" through 12" (DN 100 through
300) use 6 pieces of packing.
T.
Install packing follower (15) rounded, bevel side out.
U.
Proceed to Section 10.6 on seat ring alignment.
10.6 Seat Ring Alignment
Aligning the seat ring (2) and plug (4) is required whenever
the seat ring or plug have been replaced or disassembled.
Proceed as follows:
A.
Place valve on flat surface with retainer (3) and seat ring (2)
facing up.
Note: The casting marks (=) indicate the seat ring end
of the body.
B.
Remove the retainer ring (3) and the seat ring (2).
C.
Apply a thin coat of sealant to the seat ring shoulder that
engages the body and replace seat ring (2).
D.
Apply a small amount of thread lubricant to the seat ring
retainer threads and install seat ring retainer (3) and hand
tighten only.
CAUTION
CAUTION
WARNING
DANGER
Do not tighten the seat ring retainer to torque specifi-
cation at this time.
E.
Replace lever (34) on valve shaft (19) and tighten lever
capscrew (49).
F.
Using the lever (34) manually close the plug with sufficient
force to allow seat ring and plug to align.
G.
Using the seat ring wrench, tighten seat ring retainer to the
minimum torque value specified in Figure 12.
Note: In some cases, for the valves from 3" to 12"
(DN 80 to 300) with metal seat, the alignment can be
improved by placing a piece of paper 0.10mm (0.004")
thick and approximately 6mm (1/4") wide at a point
where the leading edge and the trailing edge of the plug
contacts the seat ring and close the plug. With a slight
pressure on the lever, the paper strips should both be
clamped in place. For the valve 8" to 12" (DN 200 to
300), the piece of paper shall be 0.20mm (0.008") thick
and 12mm (1/4") wide.
11
