Emerson KEYSTONE FIGURE 79E Скачать руководство пользователя

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KEYSTONE

FIGURE 79 PNEUMATIC ACTUATOR

OPERATING AND MAINTENANCE INSTRUCTIONS

SETTING OF INTERNAL TRAVEL STOPS

Figure 79U & 79E - 065/090/180 are fitted with
integral end of travel stops to enable setting of
exact travel for the valve being operated.
These stops give adjustment of 5° overtravel to
7° undertravel at each end of stroke. The range
of the actuator travel is, therefore :-

at closed (0°) position - 5° to +7°

at open (90°) position 83° to 95°

TO SET THE STOPS (DOUBLE ACTING UNITS)

1. Operate valve/actuator assembly to the

closed position.

2.  Remove air supply.
3.  Slacken locknut on the close travel stop.
4.  Turn the stop clockwise to reduce travel or

anticlockwise to increase travel.

5. Re-Tighten locknut.
6. Reconnect air supply and check that the

position is correct. If not repeat from
instruction 2.

7.  Apply air to operate to the open position.
8.  Remove air supply.
9.  Adjust open travel stop screw as per

instructions 3 to 6.

TO SET THE STOPS (SINGLE ACTING UNITS)
AIR FAIL CLOSE

1. Remove air supply so that actuator drives to

closed position. Note actual position.

2. Apply air to open the actuator. Note actual

position.

3. Whilst the air supply is maintained slacken

the locknut on the close stop and adjust
the stop screw by an amount estimated to
give correct position. (clockwise adjustment
decreases travel).

4. Re-tighten lock nut.
5. Remove air so that actuator closes. If

correct closed position is not achieved
repeat from instruction 2.

6. Slacken locknut on the open stop and adjust

the travel by an amount estimated to give
correct position. (clockwise adjustment
decreases travel).

7. Re-tighten locknut.
8. Apply air and check open position. If correct

open position is not achieved.

Repeat from instruction 5.

TO SET THE STOPS (SINGLE ACTING UNITS)
AIR FAIL OPEN

1. Remove air supply so that actuator drives to

open position. Note actual position.

2. Apply air to close the actuator. Note actual

position.

3. Whilst the air supply is maintained slacken

the locknut on the open stop and adjust the
stop screw by an amount estimated to give
correct position. (clockwise adjustment
decreases travel).

4. Re-tighten lock nut.
5. Remove air so that actuator opens. If correct

open position is not achieved repeat from
instruction 2.

6. Slacken locknut on the close stop and adjust

the travel by an amount estimated to give
correct position. (clockwise adjustment
decreases travel).

7. Re-tighten locknut.
8. Apply air and check close position. If correct

close position is not achieved.
Repeat from instruction 5.

WARNINGS

Under no circumstances must the travel stop
bolts be totally withdrawn from the actuator whilst
compressed air is being applied.

Internal travel stops must not be used for manual
override

Accessories mounted to the top of Actuators must
be re-adjusted accordingly after setting the travel
stops.

Содержание KEYSTONE FIGURE 79E

Страница 1: ...e fitting sealants are used they should be applied to the male threads only When applied to female threads excess compound can be transmitted into the actuator control lines 6 Where a system is dependent on Air Filter Equipment the air filters should be situated in positions that allow easy access to maintain and or drain 7 Where pneumatic valve positioners or pneumatic controllers are fitted to v...

Страница 2: ...ed it may be necessary to fit the valve into the pipeline prior to mounting the actuator to the valve Rubber lined butterfly valves are an example of this 7 For valves which need to be installed in the pipeline prior to fitting the actuator ensure that the valve is operated into its failsafe position before mounting the actuator onto the valve NON STANDARD INSTALLATION DOUBLE SINGLE ACTING UNITS I...

Страница 3: ...ng the use of eye protection Always ensure that spring return actuators are in fail safe position before attempting any maintenance Pay particular attention to this requirement when manual operators are fitted For safety reasons DONOT Air Assist Single Acting Pneumatic actuators 1 Pull off the indicator cap item 17 from the top of the actuator If this cap is too tight light pressure may be applied...

Страница 4: ...ether with sealing nut or lock nut 2 3 flat washer 2 3 and sealing washer 2 3 NOTES 1 Backing pads are not required on 002 003 models which have nylon pistons 2 Lock nuts flat washers and sealing washers are only fitted to models 065 180 3 On models 003 036 the lock nut sealing nut are one item 4 Gear shim is required on models 006 and 012 only 5 Backing rings and pads are only fitted to models 06...

Страница 5: ...inward the actuator is now in the fully closed position Note If no travel stops are fitted proceed to instruction 12 8 Turn the pinion shaft anti clockwise approximately 5 until it is orientated in line with the major axis of the actuator body The shaft is now in the closed position 9 Insert CLOSE travel stop bolt item 19 20 together with sealing nut or lock nut 2 3 flat washer 2 3 and sealing was...

Страница 6: ...ons in Open position Pistons out Top view of Actuator Closed position Pistons out Open position Pistons in FIGURE 5 NON STANDARD FAIL OPEN SINGLE ACTING ACTUATOR ASSEMBLY 79U E MODELS 002S 036S End cap O ring Backing pad Body O ring Hex head screws Lock washer Piston Direction of movement End cap spring hsg O ring Backing pad Body O ring Hex head screws Lock washer Piston Direction of movement End...

Страница 7: ...istons in Open position Pistons out Top view of Actuator Closed position Pistons out Open position Pistons in FIGURE 9 Closed position Pistons out Open position Pistons in FIGURE 8 FIGURE 10 End cap O ring Backing ring Travel bolts Close Open Body O ring Hex head screws Lock washer Piston Direction of movement Travel bolts Models 090S 180S Model 065S only Close Open End cap spring hsg O ring Backi...

Страница 8: ...O Ring 1 Nitrile 9 Top Bearing 1 Polymer 10 Top Bearing Internal O Ring 1 Nitrile 11 Top Bearing External O Ring 1 Nitrile 12 Internal Circlip 1 Spring steel 13 Piston O ring 2 Nitrile 14 End Cap O ring 2 Nitrile 15 Hex Screw M5 x 16 002 003 M5 x 20 006 M8 x 25 012 M10 x 30 024 036 8 Stainless steel 16 Lock Washer M5 002 006 M8 012 M10 024 036 8 Steel 17 Position Indicator 1 ABS 18 Backing pad 2 P...

Страница 9: ... ring 2 Nitrile 14 End Cap O ring 2 Nitrile 15 Hex Screw M5 x 16 002 003 M5 x 20 006 M8 x 25 012 M10 x 30 024 036 8 Stainless steel 16 Lock Washer M5 002 006 M8 012 M10 240 036 8 Steel 17 Position Indicator 1 ABS 18 Backing pad 2 Polymer 006 036 19 Travel Stop Bolt M6 x 25 003 M8 x 45 006 M10 x 50 012 M12 x 65 024 036 2 Stainless Steel 20 Travel Stop Nut M6 003 M8 006 M10 012 M12 024 036 2 Steel P...

Страница 10: ...ing External O Ring 1 Nitrile 9 Top Bearing 1 Polymer 10 Top Bearing Internal O Ring 1 Nitrile 11 Top Bearing External O Ring 1 Nitrile 12 Internal Circlip 1 Spring steel 13 Piston O ring 2 Nitrile 14 End Cap O ring 2 Nitrile 15 Hex Screw M12 x 40 065 090 M16 x 55 180 8 Stainless steel 16 Lock Washer M12 065 090 M16 180 8 Steel 17 Position Indicator 1 ABS 18 Backing pad 4 Polymer 19 Travel Stop Bo...

Страница 11: ...ton O ring 2 Nitrile 14 End Cap O ring 2 Nitrile 15 Hex Screw M12 x 40 065 090 M16 x 55 180 8 Stainless steel 16 Lock Washer M12 065 090 M16 180 8 Steel 17 Position Indicator 1 ABS 18 Backing pad 4 Polymer 19 Travel Stop Bolt M16 x 65 065 M16 x 90 090 M20 x 130 180 2 Stainless steel 20 Travel Stop Nut M16 065 090 M20 180 2 Stainless steel 21 Washer Flat M16 M20 2 Stainless steel 22 Washer Thread S...

Страница 12: ...ses travel 4 Re tighten lock nut 5 Remove air so that actuator closes If correct closed position is not achieved repeat from instruction 2 6 Slacken locknut on the open stop and adjust the travel by an amount estimated to give correct position clockwise adjustment decreases travel 7 Re tighten locknut 8 Apply air and check open position If correct open position is not achieved Repeat from instruct...

Страница 13: ...tic actuators RECOMMENDED TIGHTENING TORQUES FOR END CAPS Torque Models Bolt Diameter Nm lbs ft STANDARD SPRING COLOR CODES Spring Rating Models 003S to 180S End 1 End 2 40 psi 2 8 bar Light Blue Light Blue 50 psi 3 5 bar Light Blue White 60 psi 4 2 bar White White 70 psi 4 8 bar Light Blue Dark Blue White 80 psi 5 5 bar Light Blue Dark Blue Light Blue Dark Blue 90 psi 6 2 bar Light Blue White Lig...

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Emerson KEYSTONE FIGURE 79E, Инструкция по эксплуатации и техническому обслуживанию

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