V-9502-75 Positioner Kit for V-3000-8001 Pneumatic Actuators Mounted to VG7000 Series Bronze Valves Installation Guide

Текст документа

V-9502-75 Positioner Kit for
         V-3000-8001 Pneumatic Actuators Mounted to
                 VG7000 Series Bronze Valves

Note:     The positioner spring must be ordered separately. Refer to Table 1
          for appropriate code number.

Kit Includes (See Figure 1)
•     one positioner with cover and mounting bracket
•     one feedback connector
•     one No. 8 x 32 x 1/2 in. flat head mounting screw
•     one elbow barbed fitting
•     two spacers
•     two No. 10-24 x 15 mm (5/8 in.) mounting screws

Tools Required
•     standard screwdriver
•     7/16 in. open end or adjustable wrench
•     3/16 in. Allen wrench

Table 1: Accessories
                    Description                           Code Number
Pilot Positioner Springs:
  5/16 in. Stroke (8 mm Lift) - 3 psi Span                 V-9502-6801
  1/2 in. Stroke (13 mm Lift) - 5 psi Span                 V-9502-6801
  3/4 in. Stroke (19 mm Lift) - 10 psi Span                V-9502-6801
    5/16 in. Stroke (8 mm Lift) - 8 psi Span               V-9502-6802
    1/2 in. Stroke (13 mm Lift) - 12 psi Span              V-9502-6802
    3/4 in. Stroke (19 mm Lift) - 4 psi Span               V-9502-6803

Part No. 14-384-17, Rev. —                                                       1
© 1995 Johnson Controls, Inc.                                     Printed in U.S.A.
                                Upper Spring
                                Seat

                    Flat head
                    Screw

                  Feedback
                  Connector

                Figure 1: Upper Spring Seat Assembly

                              Plastic                   Elbow
                              Tubing                    Fitting

                    Spacers

              Figure 2: V-3000-8001 Positioner Mounting

               Back Plate        Positioner Lever Arm

                                           Feedback
                                           Spring

                                                                  Feedback Connector

    Spacers
                                                                  Mounting Screw

                      Figure 3: Actuator Fittings

2
Actuator Removal
1.       Disconnect the air line attached to the actuator and cap it to prevent control
         system operation problems.
2.       Make sure that the pressure in the actuator has been relieved.
3.       Using a screwdriver, remove the V-3000-8001 Actuator from the valve by
         loosening the mounting set screw. See Figure 3.

     !      CAUTION:       The spring under the actuator is attached to the valve
                           stem and is precompressed. Unknown damage to the
                           valve stem may create a hazardous condition.

Mounting Procedure
1.       Attach the feedback connector to the upper spring seat with flat head screw
         (refer to Figure 1) and using an Allen wrench, tighten the screw.
2.       Remove the straight barbed fitting on the actuator and replace it with the
         elbow fitting. See Figure 2.
3.       Using the two No. 10-24 screws and the two spacers, mount the positioner
         to the actuator through the two lower mounting slots of the positioner back
         plate (refer to Figure 3). Do not tighten the screws at this time.
4.       Place the actuator over the valve spring assembly and feedback connector.
         Using a screwdriver, tighten the mounting screw against the valve bonnet.
5.       Rotate the feedback connector until the hole is directly under the positioner
         lever arm.
6.       Attach one end of the feedback spring to the first hole in the positioner
         lever arm and attach the other end to the feedback connector.
         See Figure 3.
7.       Slide the positioner until the spring is just snug and tighten the screws from
         Step 3 with a screwdriver.
8.       Using plastic tubing, connect the actuator to the Output “O” port on the
         positioner. See Figure 2.
9.       Adjust the positioner starting point to suit your application. The operating
         span is determined by the spring used (refer to Table 1). Refer to the
         V-9502 Product Data in the Valve and Actuator Manual (FAN 977) for the
         procedure.

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Позиції каталогу з цим документом

• V-3000-8001 — Привод **17-89002-106*
• V-9502-6801 — Пружина пилота
• V-9502-6802 — Пружина пилота
• V-9502-6803 — Позиционер PILOT V-3000

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