Kelly valve is divided into upper Kelly valve and lower Kelly valve, it is a manually operated ball type drill stem valve, . It has a sealing effect.

Specifications - Upper Kelly Valve
Model O. D. (mm) Thread connection (LH) ID (mm) Max. Sealinpressure(Mpa) 
CS 146  146  4 1/2 REG  50  68.6 
CS 200 200  6 5/8 REG  76.2  68.6 
     

Specifications - Lower Kelly Valve
Model O. D. (mm) Thread connection I. D. (mm) Max. Sealinpressure(Mpa)
XS105  105  NC31  41.3   68.6
XS121  121  NC38  50   68.6
XS127  127  NC38  50   68.6
XS165  165  NC46  61  68.6
XS178  178  NC50, 5 1/2FH 71.4  68.6

Yantai sanmon machinery equipment Co., Ltd is a leading petroleum machine parts supplier around the world. Found in 2010, professional on supplying all kinds of petroleum machine and kelly valves, square and hexagmonal kelly, drill collar, heavy weight drill pipe, drill pipe and parts like sucker rod, rod, polished rod, sinker bar, drive rod, sucker rod coupling, sub cupling, polished rod connection, stuffing box, sucker rod guide & certralizer, polished rod clamp, polished rod bop, pumping tee, sucker rod sub surface pump, pump barrel, pump plunger, pump coupling, seating cups, nipples, seals and other accessories.