| 摘要 |
Valves such as ball valves may be configured so that they may be field serviced without removing the entire valve from a piping system. In some cases, the ball valves may be configured to be fluid tight while exhibiting low friction thus allowing a relatively low turning force. Such valves may include a valve body and a valve assembly disposed within the valve body. The valve assembly may include a ball valve disposed within a replaceable cartridge.
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