Our bolted bonnet design is simple to disassemble , easy to maintain . for example , our unique threaded seat rings are easily accessible for repair or replacement 我们的螺栓阀盖结构使得拆卸简单化，维护容易。例如，我们独特的螺纹阀座环易于接近进行维修或更换。
Threaded seat rings are easily accessible for repair or replacement . packing swing bolts on most valves simplify packing replacement . all pacific bolted bonnet designs facilitate fast disassembly 螺纹阀座环易于接近进行维修或更换。大多数阀门上的填料旋启式螺栓简化了填料的更换。所有美国太平洋螺栓阀盖结构使得拆卸更加迅速。
Valves shall be one of the types specified in 4 . 2 to 4 . 4 , having flanged , threaded , capillary or compression ends , integral or renewable body seats and screwed , union or bolted bonnets or covers 阀门的类型应是4 . 2到4 . 4中所给出的类型，带有法兰/丝口/焊接或压缩端面，带有完整的或可更换的阀体，及螺纹式，联接式或拴结式阀帽或阀盖。
Valves shall be one of the types specified in 4 . 2 to 4 . 4 , having flanged , threaded , capillary or compression ends , integral or renewable body seats and screwed , union or bolted bonnets or covers 阀门的类型应是4 . 2到4 . 4中所给出的类型，带有法兰端面，丝口端面，焊接端面或压缩端面，带有不可拆分或可更换的密封装置，带有旋入式接头，由拧或拴结阀帽或阀盖。
[ br ] valves shall be one of the types specified in 4 . 2 to 4 . 4 , having flanged , threaded , capillary or compression ends , integral or renewable body seats and screwed , union or bolted bonnets or covers 阀门的类型应是4 . 2到4 . 4中所给出的类型，带有法兰端面，丝口端面，焊接端面或压缩端面，带有不可拆分或可更换的密封装置，带有旋入式接头，由拧或拴结阀帽或阀盖。
