Adjustment in the field may be accomplished by sliding out and cutting the stem rod to the appropriate length 现场调试可能需要将阀杆滑出，并对阀杆进行切割加工使其具有适当的长度。
2.
Deeper bury is available by special order from the distributor or by customer providing longer ductile pipe and longer stem rod 通过向经销商特别定制或由用户自行提供更长的球墨铸铁管和更长的阀杆，可以实现更深的掩埋。
