Throttle valve used to control wellbore pressure during drilling. By adjusting the valve core
and valve seat to save money in the gap, to achieve well-controlled
the implementation of standard products：API SPEC 6A、SY5156-93
Type
Working principle, structure and use:
1, manually turn the hand wheel drive throttle valve stem through the advance and retreat to
adjust the valve and valve seat size of the gap, to control, regulate production purposes.
Contacts with the valve seat is a cone, you can throttle can close. Valve seat and valve are
made of special material made of erosion resistant, long service life.
2, this valve has a flow rate, reducing cutting vibration, reduce noise, wear-resistant lining
with exit routes, extended service life.
3, valve cover the hole with special bearings for easy site add grease.
4, the stem threads with the left trapezoidal screw thread. Clockwise to "Off",
counter-clockwise to "On", and the same habit.
5, the throttle is only used for cutting, not to seal use.
Manual throttle valve model and the main parameters:
|
Type |
Rated temperature level0C |
Working pressureMPa |
|
JLK52-（ ） |
-29~121 P.U |
21、35、70 |
|
JLK65-（ ） |
-29~121 P.U |
21、35、70、105 |
|
JLK78-（ ） |
-29~121 P.U |
35、70、105 |
|
JLK103-（ ） |
-29~121 P.U |
35、70 |
