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　　PARKER截止阀安装及使用
　　design allows for thermal expansion and contraction, thereoperation and reduced closing tor
　　que by use of a PTFE anti-friction disc between the valve spindle a
　　nd the disc assembly.
The range inclZB4-BR2
　　ZB5-AD2
　　ZB5-AD3le, these valves deliver smooth
　　ZB5-AL4
　　ZB5-AZ009
　　ZB5-AZ905
　　ZBE-101
　　ZC2-JE01
　　ZC2JE61ZB4-BS14
　　ZB4-BS54
　　ZB4-BT4

　
　　ZB5-AD5
　　ZB5-AL2
　　fore eliminating the risk of leakage at the bonnet gasket.
　　
Extremely dura
　　Cryogenic Globe Valves
　　Parker Bestobell's cryogenic globe valves feature an
　　innovative loose flange bolted bonnet design that allows for thermal expansion
　　ZB5-AA4
　　ZC2JY11
　　ZC2-JY13
　　ZC2-JY31
　　ZC2-JY41udes actuated and manual options in stainless steel and bronze body materials.

　　PARKER截止阀安装及使用