نمایش نتیجه 1 تا 1 از 1 نتیجه یافت شده برای change rams:
v: to take rams out of a blowout preventer and replace them with rams of a different size or type. When the size of a drill pipe is changed, the size of the pipe rams must be changed to ensure that they seal around the pipe when closed (unless variable-bore pipe rams are in use).
v: Bring out the pipe ram of BOP and install with other size or type of brake.
© ۱۳۹۲-۱۳۹۷ این اثر شامل قانون حمایت از مولفین بوده و هرگونه کپی برداری از آن ممنوع است.