Emerson Fisher 3024C 사용 설명서 - 페이지 12

{카테고리_이름} Emerson Fisher 3024C에 대한 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Emerson Fisher 3024C 20 페이지. Diaphragm actuator

3024C Actuator

June 2023

Note

Be sure to use the long cap screws (key 21) first, installing them on opposite sides of the diaphragm casing. Tighten them evenly,

using a criss‐cross pattern to ensure a proper seal.

5. Mount the actuator on the valve in accordance with the Installation Procedures.

Changing the Actuator Action

The actuator can be changed from a 3024C Air‐to‐Open to a 3024C Air‐to‐Close action or vice versa. Remove the

pressure plate, diaphragm, O‐ring, diaphragm plate, travel stop nut, springs, spring locator, self tapping screws and

vent assembly (keys 10, 11, 12, 13, 14, 15, 17, 18 and 23) and reinstall them for the appropriate action. Follow the

instructions in the section on Assembly on page 8.

Side‐Mounted Handwheel

A side‐mounted handwheel assembly (figure 10) is usually used as a manual operator. When mounted on an

Air‐to‐Close 3024C actuator, turning the handwheel clockwise always closes the valve. When mounted on an Air‐to

Open actuator, turning the handwheel clockwise always opens the valve. A lever (key 101, figure 10) on the

handwheel assembly opens or closes the valve by moving the valve stem.

Instructions are given below for complete disassembly and assembly. Perform the disassembly only as far as is

necessary to accomplish the required maintenance; then begin the assembly at the appropriate step.

Refer to figure 10 for key numbers.

Disassembly

1. If desired, the handwheel assembly can be removed from the actuator yoke. To do this, remove the eight hex cap

screws (key 113) that hold the assembly to the yoke.

2. Loosen the lock (key 115) that secures the drive screw assembly (key 103).

3. Remove the retaining ring (key 110) and screw out the drive screw assembly (key 103).

4. Remove the retaining ring (key 108) and drive out the pivot pin (key 104).

5. Remove the bushings (key 107) from the body (key 100).

6. There is a cap screw (key 111), hex nut (key 112) and spacer (key 105) that hold the two levers (key 101) together.

Remove the cap‐screw and hex nut and the two levers can be separated in order to remove the operating nut (key

102).

Assembly

1. Assemble the operator nut (key 102), the two levers (key 101) and the spacer (key 105) using the cap‐screw (key

111) and hex nut (key 112).

2. Install the bushings (key 107) in the body (key 100).

3. Attach the levers (key 101) to the body (key 100) using the pivot pin (key 104) and the retaining ring (key 108).

4. Apply lithium grease (key 200) to the drive screw assembly (key 103) and screw it on to the operating nut (key 102).

5. Install the retaining ring (key 110) to secure the collar to the body (key 100).

Instruction Manual

D103048X012