The Baker Hughes Control Butterfly Valve with Actuator Model 33 37002 Series MiniTork II is designed for precise flow control in industrial applications. This robust valve and actuator combination ensures reliable performance and durability, making it ideal for various process control systems.

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Manual for Baker Hughes Control Butterfly Valve with Actuator Model 33 37002 Series MiniTork II

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Baker Hughes Control Butterfly Valve with Actuator Model 33 37002 Series MiniTork II

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Maintenance Plans for Baker Hughes Control Butterfly Valve with Actuator Model 33 Model 37002 Series MiniTork II

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Packing Box Maintenance

Packing box maintenance is one of the principal chores of routine servicing. Tightness of the packing is obtained through compression which is achieved by evenly tightening packing stud nuts (23A) against a packing flange (22). Care must be taken not to over tighten as this could prevent smooth operation of the valve. If all compression is used up and the valve leaks around the stem, new packing is required.

Note: If replacement of all packing is required, the valve must be disassembled. Refer to appropriate section. The following procedure should be used for temporary repairs only.

1. Loosen and remove packing flange stud nuts (23A).

2. Slide packing flange (22) and packing follower (8) down the shaft.

Note: As a temporary repair, it may be desirable to simply add more packing, since removal of any packing while the valve is assembled to the actuator is difficult. In addition, only one or two pieces of packing can be removed without disassembly. String packing, compatible with the service, can be used as a temporary repair, however it must be replaced with the correct packing as soon as possible.

3. Add or replace packing as desired.

4. Slide packing follower (8) and packing flange (22) back into position.

5. Replace and evenly tighten packing flange stud nuts (23A).

6. Place valve back in service and check for leaking.;

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Actuator Diaphragm Replacement

Type 33 OLD Version Actuator (produced up to year 1993) - refer to Figures 15 & 17

1. Isolate the valve, vent process pressure and shut off all electrical signal air and supply lines to the valve.

2. If equipped with a handwheel, it must be rotated to the disengaged position.

3. Remove air supply piping to upper diaphragm case (84).

4. Remove side covers (56).

5. Remove retaining rings (11) and remove pivot pin (12) and spacers (10) (handwheel only) to free rod end bearing (94).

6. Loosen and remove all short cap screws (86) and hex nuts (87).

7. Loosen each tension nut (96) approximately three full turns.

8. Continue loosening the tension nuts (96) evenly approximately three turns each time insuring that the upper diaphragm case (84) and diaphragm (85) continue to separate.

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