偷自拍视频区综合视频区/日韩三级免费观看/国产人成精品综合欧美成人/国产大片喷水在线在线视频

DDF Single joint elevator with safety pin to lock latch was designed to “tail-in” or “l(fā)ay-down” tubing and casing and allow fast alignment of threads when running casing. DDF type single joint elevators are constructed in two halves of practically the same weight, and have a latch mechanism for the two halves at the center with latch and a safety latch pin combination, DDF single joint elevators are made of high quality alloy steel, heat-treated, and MPI, the rated load are 5t (45kN) and10t (90kN), and cover pipe sizes from 2⅜" to 30" OD. API monogram in conjunction with numbers, product series numbers are hard die stamped on shoulders of single joint elevators for tracing, and single joint elevators shoulders are die stamped with size of single joint and rated working capacity. Manufacturer’s name plates are provided on bodies of single joint elevators, warranty for single joint elevators are listed in single joint elevator manual.

Note: DDF Single joint elevators are not designed to accommodate taper type pipes without use of a lifting plug, failure to comply with this warning could cause serious bodily harm or property damage, to use single joint elevators on taper shoulder drill pipes, DFZ or SPL single joint elevators are optional.

SPL Single joint elevator with safety pin to lock latch was designed to “tail-in” or “l(fā)ay-down” taper should drill pipes for mousehole connections and allow fast alignment of threads when running drill pipes. SPL type single joint elevators are designed by using of a lifting plug and constructed in two halves of practically the same weight, and have a latch mechanism for the two halves at the center with latch and a safety latch pin combination, SPL single joint elevators are made of high quality alloy steel, heat-treated, and MPI, the rated load are 5t (45kN) and10t (90kN), and cover pipe sizes from 3½" to 6⅝" OD. API monogram in conjunction with numbers, product series numbers are hard die stamped on shoulders of single joint elevators for tracing, and single joint elevators shoulders are die stamped with size of single joint and rated working capacity. Manufacturer’s name plates are provided on bodies of single joint elevators, warranty for single joint elevators are listed in single joint elevator manual.

DFZ Single joint elevator with safety pin to lock latch was designed to “tail-in” or “l(fā)ay-down” taper should drill pipes for mousehole connections and allow fast alignment of threads when running drill pipes. DFZ type single joint elevators constructed in two halves of practically the same weight, and have a latch mechanism for the two halves at the center with latch and a safety latch pin combination, DFZ single joint elevators are made of high quality alloy steel, heat-treated, and MPI, the rated load are 5t (45kN) and10t (90kN), and cover pipe sizes from 3½" to 6⅝" OD. API monogram in conjunction with numbers, product series numbers are hard die stamped on shoulders of single joint elevators for tracing, and single joint elevators shoulders are die stamped with size of single joint and rated working capacity. Manufacturer’s name plates are provided on bodies of single joint elevators, warranty for single joint elevators are listed in single joint elevator manual.