球阀—产品使用说明书.doc

Ball valves
球阀使用说明书
Ball Valve Operating Manual
XX石化阀门XX
Zhejiang Petrochemical Valve

150



三 作用原理及结构特点 Working Principal and Structural Features
1作用原理：通过手柄或蜗轮带动阀杆和球体旋转90°，以达到密封副之间的开启和关闭。
Working principal: Drive the shaft and ball rotate 90 degree through operating the lever, to reach the openness and closeness of the seats.
2结构特点：Structural features
a 结构形式：螺栓连接阀体、阀盖，螺栓连接压盖的浮动球和固定球阀。
Structural feature: Bolted body, bolted bonnet, bolted gland floating ball valve and
trunnion ball valve.
b 操作方式：手轮和蜗轮操作。
Operation mode: handwheel and gear operation.
c 连接形式：凸面法兰连接。
Connection form: Raised Flange (RF)
d 密封面采用聚四氟乙烯（PTFE），耐磨，耐腐蚀、抗冲刷性好、密封可靠、使用寿命长。
Sealing face adopts PTFE, anti-friction, anti-corrosion, anti-abrasion, good sealing, long service life.
e 采用聚四氟乙烯填料环，密封可靠，操作轻便灵活。
Adopt PTFE packing ring, good sealing and easy operation.
f 阀体、盖之间垫片采用聚四氟乙烯材料，密封可靠。
Gasket between valve body and bonnet is PTFE, good sealing.
g阀门通道为全径直通式，故流体阻力小。
Valve cavity is Full port straight type, the fluid resistance is very small.
1
四 结构图
Structure chart
球阀外形结构图
Ball Valve Configuration
球阀主要零件材料表 Main parts material sheet
No
Part Name
Materal A
Materal B
1
Bolt
AST