KTM Series EF1 Two-Piece Ball Valve IOM, KTM-EN Manuals & Guides

KTM SERIES EF1 FLOATING BALL VALVES

INSTALLATION AND MAINTENANCE MANUAL

Before installation these instructions must be fully read and understood

1 USE

Long life of valves can be maintained under
normal working conditions and in accordance
with pressure/temperature and corrosion
datachart.

2 MANUAL OPERATIONS

The opening and closing of the valve is done by
turning the handle one quarter turn (90° turn).

A. Valve in open position

The handle is in line with the valve or pipeline.

B. Valve in closed position

The handle is perpendicular with the pipeline.

3 AUTOMATED OPERATIONS

Alignment between actuator and valve is
extremely important.
Misalignment will result high operational
torque, create the stem side loading and cause
early stem leakage.

4 GENERAL INFORMATION FOR ON-SITE
INSTALLATION

4.1 Remove plastic end flanges
protectioncovers.

4.2 The valve may be fitted in any position on
the pipeline.

4.3 Before installing the valves, the pipes
must be flushed clean of dirt, burrs and
welding residues to prevent damage to
the seats and ball surface.

4.4 The pipeline must be free of tension.

5 DISASSEMBLY AND CLEANING
PROCEDURES

CAUTION

Ball valves can trap fluids in ball cavity when it is
in closed position.

5.1 If the valve has been used to control
hazardous media, it must be
decontaminated before disassembly. It is
recommended that the following steps be
taken for safe removal and reassemble.

A. Relieve the line pressure.
B. Place valve in half-open position

and flush the line to remove any
hazardous material from valve.

C. All persons involved in the removal

and disassembly of the valve should
wear the proper protective clothing,
such as face shield, glove, and apron,
etc.

5.2 Remove both counter flanges studsand
nuts and lift valve from line for
maintenance.

5.3 Remove handle (item 18) or actuator set,
stemnut (item 16), lock saddle (item15),
belleville washers (item 14), gland
(item13), thrust washer(item 12) and
stem packing(item 11).

5.4 Remove body stud (item 7) and nuts
(item7a) to allow end cap (item 2)
separated from body (item 1). The ball seat
(item 5) in the end cap should come out.
Remove body gasket(item 6).

5.5 Rotate the stem to "close" position, thus,
the ball (item 3) can be taken out easily
frombody.

5.6 Take out the ball seat (item 5) from body
seatpocket.

5.7 Pull out stem (item 4) and remove the
stem seal (item 8 and 10) compress ring
(item 9). Atthis stage, all the parts are in
"Loose condition" and ready for inspection.

6 VISUAL INSPECTION

Clean and inspect metal parts. It is not
necessary to replace the ball and stem unless
the ball seating surfaces have been damaged
by abrasion or corrosion. Full replacements
of all soft parts are strongly recommended.
Thereplacement parts can be ordered in
"Repair kit" form.

Emerson.com/FinalControl VCIOM-03153-EN 21/01© 2017 Emerson. All Rights Reserved.

KTM SERIES EF1 FLOATING BALL VALVES

INSTALLATION AND MAINTENANCE MANUAL

7 PROCEDURE TO CHANGE PARTS AND
ASSEMBLY

7.1 Install ball seat (item 5) to body (item 1)
seat pocket and make sure the spherical
curvature facing the ball.

7.2 Put lower stem seal (item 8), compress
ring (item 9) and upper stem seal (item10)
to stem (item 4) and slide the stem up
through the body. Install stem packing
(item 11) and top with thrust washer
(item12), gland (item 13), Belleville washer
(item 14), lock saddle (item 15) and drive
stem nut (item 16) per the stem torque
data to ensure the whole stem seals have
been properly compressed. Turn the lock
saddle to engage it with stem nut - this is
to prevent stem nut from unthreading.

7.3 Put the handle (item 18) on stem and
secure it with handle nut (item 16).

7.4 Turn the handle to "close" position. Line
up the ball slots with stem tang and slides
ball (item 3) into the position. Turn the
handle to "open" position to prevent the
ball from falling out.

7.5 Install the body gasket (item 6) into the
shoulder of the end cap (item 2), put the
ball seat (item 5) into seat pocket.

7.6 Put the end cap (item 2) into body with all
the holes line up between or end cap holes
guided by body studs and engaged.

7.7 Finger tight the body stud and nuts and
tighten one side snugly, then the one
diagonally across. Repeat for other bolts
or nuts until the torque is observed per
bolting torque data.

7.8 Cycle the valve slowly with gentle back
and forth motion to build gradually to full
quarter turn. By cycling slowly, the seat
lips will assume a permanent seal shape
against the ball.

7.9 If possible, test the valve before placing
it back to line for service to ensure "No"
through and external leakage is observed.

(2½"~5")

(6"~12")

STANDARD REPAIR KIT

Material by Configuration

No. Part Name

5 Ball seat PTFE PTFE PTFE / RPTFE 2
6 Body seal PTFE Graphite (DN 15 - 100 (NPS ½ - 4))

316 SS spiral wound graphite

(DN 125 - 300 (NPS 5 - 12))
8 Lower thrust washer 50% SS powder / 50% PTFE 50% SS powder / 50% PTFE 50% SS powder / 50% PTFE 1
10 Upper thrust washer TFM 1600 Graphite TFM 1600 1
11 Stem packing PTFE Graphite Graphite 1 set
12 Thrust washer 50% SS powder / 50% PTFE 50% SS powder / 50% PTFE 50% SS powder / 50% PTFE 1

Inner seal: PTFE
Outer seal: 316 SS spiral
wound graphite

QuantitySeries EF1 - Standard Series EF1 - Firesafe Series EF1 - FE Compliant

1 set

2

KTM SERIES EF1 FLOATING BALL VALVES

INSTALLATION AND MAINTENANCE MANUAL

BOLTING TORQUE DATA FOR SERIES EF1

Valve size For body nut For stem nut* For stem extension bolt or nut
DN NPS Size lbf·in Nm lbf·in Nm Size lbf·in Nm

15 ½ M8 195 22 53 6 M5 53 6
20 ¾ M8 195 22 53 6 M5 53 6
25 1 M10 399 45 133 15 M6 80 9
32 1¼ M10 399 45 133 15 M6 80 9
40 1½ M12 700 79 177 20 M8 177 20
50 2 M12 700 79 177 20 M8 177 20
65 2½ M12 700 79 195 22 M10 354 40
80 3 M12 700 79 195 22 M10 354 40
100 4 M12 700 79 266 30 M10 354 40
100 • 4 M16 1222 138 266 30 M10 354 40
125 5 M12 700 79 407 46 M10 354 40
125 • 5 M16 1222 138 407 46 M10 354 40
150 6 M16 1222 138 549 62 M12 575 65
200 8 M16 1222 138 655 74 M12 575 65
200 • 8 M20 3479 393 655 74 M12 575 65
250 10 M16 1222 138 859 97 M16 1097 124
250 • 10 M22 4514 510 859 97 M16 1097 124
300 12 M20 3479 393 1053 119 M16 1097 124
300 • 12 M22 4514 510 1053 119 M16 1097 124

NOTES

* DN 100 (NPS 4) and smaller stem nut are inch system.
DN 125 (NPS 5) and larger stem nut are metric system.

• For flange end ASME Class 300 and EN PN 25 / 40

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