Flowserve Valtek MaxFlo 3 Bedienungsanleitung PDF herunterladen (Seite 4)

User Instructions - MaxFlo 3 - VLEEIM7001-03 07.07

Size

vanne

Nominal

Pressure /

Rating

MaxFlo 3 ﬂanged

Size x Length

MaxFlo3 ﬂangeless

Size x Length

Inches Metric

Qty /

vanne

Inches Metric

Qty /

vanne

DN25

ANSI 150 1/2 X 2.62 M12 X 65

8 1/2 X 6.75 M12 X 170 4

ANSI 300 5/8 X 3.12 M16 X 80 8 5/8 X 6.88 M16 X 175 4

PN 16

M12 X 70 8 M12 X 175 4

PN 40 M12 X 70 8 M12 X 175 4

DN40

1½"

ANSI 150 1/2 X 2.88 M12 X 70

8 1/2 X 7.50 M12 X 190 4

ANSI 300 3/4 X 3.62 M20 X 95 8 3/4 X 8.38 M20 X 215 4

PN 16

M16 X 80 8 M16 X 200 4

PN 40 M16 X 80 8 M16 X 200 4

DN50

ANSI 150 5/8 X 3.25 M16 X 85

8 5/8 X 8.38 M16 X 215 4

ANSI 300 5/8 X 3.5 M16 X 90 16

5/8 X 3.50 M16 X 90 4

5/8 X 8.50 M16 X 220 6

PN 16

M16 X 85 8 M16 X 215 4

PN 40 M16 X 85 8 M16 X 215 4

DN80

ANSI 150 5/8 X 3.62 M16 X 95

8 5/8 X 10.5 M16 X 265 4

ANSI 300 3/4 X 4.25 M20 X 110 16

3/4 X 4.25 M20 X 110

3/4 X 11.00 M20 X 280

PN 16

M16 X 85 16

M16 X 85 6

M16 X 255

PN 40 M16 X 95 16

M16 X 95 6

M16 X 265

DN100

ANSI 150 5/8 X 3.62 M16 X 95 16

5/8 X 3.62 M16 X 95

5/8 X 11.5 M16 X 295

ANSI 300 3/4 X 4.5 M20 X 115

3/4 X 4.5 M20 X 115 4

3/4 X 12.25 M20 X 315

PN 16

M16 X 85 16

M16 X 85 6

M16 X 285

PN 40 M20 X 100 16

M20 X 100 6

M20 X 300

DN150

ANSI 150

3/4 X 3.75 M20 X 105 16

3/4 X 3.75 M20 X 105 4

3/4 X 13.25 M20 X 340

ANSI 300 3/4 X 4.88 M20 X 125 24

3/4 X 4.88 M20 X 125 8

3/4 X 14.00 M20 X 360

PN 16

M20 X 100 16

M20 X 100 4

M20 X 335

PN 40 M24 X 115 16

M24 X 115 4

M24 X 350

DN200

ANSI 150 3/4 X 4.25 M20 X 110 16 3/4 X 4.25 M20 X 360

ANSI 300 7/8 X 5.5 M22 X 140 24

7/8 X 5.5 M22 X 140 4

7/8 X 15.19 M22 X 390 10

PN 16

M20 X 100 24

M20 X 100 8

M20 X 350

PN 40 M27 X 135 24

M27 X 135 8

M27 X 385

DN250

10"

ANSI 150 7/8 X 4.62 M22 X 120 24

ANSI 300 1 X 6.25 M24 X 155 32

PN 16

M24 X 110 24

PN 40 M30 X 150 24

DN300

12"

ANSI 150

7/8 X 4.75 M22 X 120 24

ANSI 300 1 1/8 X 6.75 M27 X 170 32

PN 16

M24 X 115 24

PN 40 M30 X 160 32

Table I: Line Flange Bolting Speciﬁcations

3 QUICK-CHECK

Before commissioning, check the control valve by fol

lowing these steps:

3.1 Check for full stroke by varying the instrument signal

settings appropriately. Observe the plug position in-

dicator located on the actuator or the positioner. The

plug should change position with a smooth turning

movement.

3.2 Check all air connections for leaks. Tighten or replace

any leaking lines.

3.3 Check packing box bolting for proper tightness.

CAUTION: Do not overtighten packing. This can cause

excessive packing wear and high stem friction that

may impede shaft movement. After the valve has been

in service for a short period, recheck the packing-box

nuts. If the packing-box leaks, tighten the nuts just

enough to stop the leak.

3.4 Make sure the valve fails in the correct direction in case

of air failure. This is done by positioning the valve at

mid-stroke and turning off the air supply and observ-

ing the failure direction. If the action is incorrect, see

the section “Reversing the Air-action” in the instruc-

tions of the installation, operation and maintenance

manual of the appropriate actuator.

4 PREVENTATIVE MAINTENANCE

At least once every six months, check for proper oper-

ation by following the preventative maintenance steps

outlined below. These steps may be performed while

the valve is in-line and without interrupting service. If

an internal problem is suspected, refer to section “Dis-

assembling the Valve”.

4.1 Look for signs of gasket leakage through the end

ﬂanges and bonnet. If necessary, re-torque ﬂange,

bonnet and post bolting.

4.2 Examine the valve for damage caused by corrosive

fumes or process drippings.

4.3 Clean the valve and repaint areas of severe oxidation.

4.4 Check the packing-box for proper tightness. If there is

a persistent leak, change the packing after referring to

section “Valve Disassembly and Body Reassembling”.

CAUTION: Do not overtighten packing. This can cause

excessive packing wear and high friction that may im-

pede shaft movement.

4.5 If the valve is equipped with a lubricator, add lubricant

if necessary.

4.6 If possible, stroke the valve and check for smooth,

full-stroke operation. Unsteady shaft movement may

indicate an internal valve problem.

4.7 Check the calibration of the positioner. For further

preventative maintenance, see the instructions in the

installation, operation and maintenance manual for the

applicable positioner.

4.8 Ensure all accessories, brackets and bolting are se-

curely fastened.

4.9 If possible, remove air supply and observe actuator for

correct fail-safe action.

4.10 Check the actuator and all air connections for leaks.

4.11 If an air ﬁlter is supplied, check and replace the car-

tridge if necessary.

1 2 3 4 5 6 7 8 9 ... 15 16

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