American Valve 3700V Ball Valve 설치, 유지보수 및 운영 매뉴얼 - 페이지 2

{카테고리_이름} American Valve 3700V Ball Valve에 대한 설치, 유지보수 및 운영 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. American Valve 3700V Ball Valve 4 페이지.

1. Installation

1. Prior to installation, all valves and mating flanges should be inspected to ensure gasket surfaces

are free from defects.

2. The valve and line should be free from dirt and debris, which can damage valve seats.

3. Piping should be checked for proper alignment and appropriate supports. Valves should never

be used to align or brace improperly positioned pipe. OVER-TIGHTENING FLANGE BOLTS

TO COMPENSATE FOR EXCESS FLANGE SPACING COULD CAUSE THE VALVE

BODY TO CRACK.

4. 3700 Series valves can be installed for flow in either direction. Visually inspect valve for foreign matter.

5. Install valve into pipeline and tighten flange bolts (3700) evenly according to recommendations

of gasket manufacturer. For grooved-end products (3700V), refer to installation instructions

provided with the coupling.

6. DO NOT TIGHTEN OR OTHERWISE ADJUST BODY BOLTS. THEY ARE AT A PRE-SET EVENLY

DISTRIBUTED TORQUE. OVERTIGHTENING OF ONE SIDE MAY CAUSE LEAKAGE, AND

NECESSITATE BODY SEAL REPLACEMENT.

2. Operation

1. The operation of 3700 Series ball valves consists of rotating the handle 90° (¼ turn)

counterclockwise to open.

2. When the valve is in the open position, the handle is parallel to the pipeline.

3. When the valve is in the closed position, the handle is perpendicular to the pipeline.

4. Media which can solidify, crystallize or polymerize should not be allowed to stand in ball valve cavities.

3. General Maintenance

1. Replacement seats and body seals are not available for 3700 series valves. Consult the factory

for all repair needs.

2. Body Bolts are tightened to pre-set torques evenly distributed around the body. Any tightening or

loosening of these bolts may result in leakage through the body gasket. Should this occur, consult the

factory for repair options.

3. No special tools are needed for maintenance of American Valve 3700 series valves.

3700 Series Installation Maintenance Operation Manual

Nov-2013