Flowserve E-Series Unibody Flanged - Manual (Page 2)

NOTE: Care should be taken to avoid scratching or damaging gasket
surface on flange face.
B. Unscrew end adaptor (7) from body (11) by using hex nut or hexagon
bar (See TABLE 1). One seat (9) should come out with the end
adaptor (7), except on the
1 /
2
" – 1- 1 /
2
" EFP1.
a WARNING: Valve must be properly secured to withstand the high
loads imposed during disassembly.
C. (1) ( 1 /
2
" – 1 1 /
2
" EFP1 & 2" ERP1 only). Remove spacer seal (6) with
a packing hook, taking care not to damage body and spacer
surfaces, then remove seat socket (15) and seat (9).
(2) (All other unibody valves) Remove end seal (12).
D. To take out the ball (8), rotate stem (2) so that ball (8) is in fully
closed position, and insert wooden dowel (not metal) in port
opposite threaded end. Tap gently on ball (8), thereby rocking it out
of engagement with the stem (2). NOTE: Extreme caution should be
taken to avoid damage to the ball (8). Remove the ball (8).
E. Take out the other seat (9).
F. Remove the handle retainer nut (4), handle (1), adjusting nut
(14), travel stop (5) (part of the handle on sizes 1 /
2
" and 3 /
4
") and
the gland ring (6). Push the stem (2) down through the body (11)
and out the open end of the body (11). Remove the upper and
lower stem seals (10) and the grounding washer (13). Grounding
washer (13) is not used with FIRE-GARD valves. Save the
grounding washer (13) for reassembly.
G. Flowserve strongly recommends replacement of all soft parts
whenever the valve is disassembled for reconditioning. This is
the surest protection against subsequent leakage after valve
assembly. The replacement parts can be ordered in kit form.
4. Reassembly
NOTE: Prior to reassembly, all metallic sealing faces must be carefully
cleaned and inspected for damage. A smooth nick-free surface is
required for effective sealing.
A. Put one seat (9) in body (11). NOTE: Seats (9) are to be installed
with spherical surface positioned toward the ball.
B. Place stem seal (10) on stem (2) and insert stem into body (11)
from the inside.
C. Lightly grease the stem seals (10) and the seal area and threads
of the stem (2). Insert stem seal(s) (10) into the lower stem seal
cavity with the raised outer edge facing into the counterbore. (The
1 /
2
" size and the FIRE-GARD seals are square cut seals.) Insert
stem (2) thru the installed stem seals (10) and the body (11).
Place the travel stop (5) on the stem (2) so that it rests on the top
surface of the body (11). Thread the adjusting nut (14) on the
stem (2) and torque to
3 /
4
of the final torque value for the stem
nut. Remove the adjusting nut (14) and the travel stop (5) without
moving the stem (2). Place the grounding washer (13) into the
upper seal cavity with the raised fingers pointing up. Push the
upper stem seal(s) (10) into the counterbore with the raised outer
edge pointing into the valve. Add the gland ring (6), the travel
stop (5) and the handle retainer nut (4). Make sure the travel stop
(5) is installed so that the valve can close in a clockwise direction
and open counterclockwise. If the rotation is not correct, the
travel stop (5) must be inverted. Torque the adjusting nut (14) to
the valve shown in TABLE 2. Cycle several times and check the
adjusting nut torque.
D. Turn the stem (2) to a position with the lower stem tang flats parallel
to the pipeline axis of the body. (Stem and ball should stay in this
position through steps E, F, and G).
E. Install the ball (8), being careful not to damage it. A sling through
the waterway can aid insertion. NOTE: Ball should be carefully
examined for nicks, scratches, pitting or corrosion, and replaced
as necessary.
Flow Control Division
McCANNA Valves
2 IM002G
Valve Size Hex Size (Across Flats)
1 /
2
" EFP1 11 /
16
"
3 /
4
" EFP1 13 /
16
"
1" EFP1 1 1 /
16
"
1 1 /
2
" EFP1/ERP3 1 1 /
2
"
2" ERP1/ERP3 1 7 /
8
"
3" ERP1/ERP3 2 5 /
8
"
4" ERP1/ERP3 3 1 /
2
"
TABLE 1
TABLE 2
Stem Nut
Torques (lb-ft) Number of Seals
SIZE TORQUE UPPER LOWER
1 /
2
" 5 1 1
3 /
4
" to 2" 10 1 2
3" & 4" 15 3 3