DeZurik G-SERIES 매뉴얼 - 페이지 6

{카테고리_이름} DeZurik G-SERIES에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. DeZurik G-SERIES 14 페이지. Lift, turn and reseat used on ptw & pfw tapered plug valves
DeZurik G-SERIES에 대해서도 마찬가지입니다: 지침 (7 페이지), 매뉴얼 (8 페이지), 매뉴얼 (17 페이지), 매뉴얼 (14 페이지), 매뉴얼 (12 페이지), 매뉴얼 (16 페이지), 지침 (19 페이지), 매뉴얼 (17 페이지), 사용 설명서 (13 페이지), 매뉴얼 (9 페이지)

페이지 인쇄

DeZURIK

G-Series Manual Actuator used on BOS Butterfly Valves

Adjusting Position Stops

The open and closed position stops prevent the valve disc from rotating beyond the optimum open and

shutoff positions.

If the actuator is factory-mounted on the valve, the stops are preset, and do not require further

adjustment. If the actuator is not factory mounted on the valve, or if the actuator has been removed, the

stops will require adjustment as described below; also refer to the Valve Instructions for specific closed-

position requirements for the valve.

To adjust the closed position stop:

Adjusting stops with flow in the pipeline can allow the valve to close causing personal injury

and damaging the flow system.

Shut down the flow and relieve pipeline pressure before making stop adjustments.

1. Discontinue flow and relieve pipeline pressure.

2. Loosen the nut on the closed position screw, and back out the screw about two turns.

3. Close the valve.

4. Turn the closed position screw clockwise until resistance is felt from the screw contacting the

gear (B1C).

5. Prevent the screw from turning and tighten the nut against housing (B1A).

6. Pipeline flow may now be restored.

To adjust the open position stop:

Adjusting stops with flow in the pipeline can allow the valve to close causing personal injury

and damaging the flow system.

Shut down the flow and relieve pipeline pressure before making stop adjustments.

1. Discontinue flow and relieve pipeline pressure.

2. To visually determine when the valve is in the open position, remove the screws (B1R) and

pointer (B1Q).

3. Loosen the nut on the open position screw, and back out the screw about two turns.

D10465

(see Figure 4 for stop identification)

Page 6

August 2012