No-bolt valve assembly system

A valve assembly, comprising:

• an actuator configured to drive movement of a valve stem between a first position and a second position;
• a valve body;
• a valve member coupled to the valve stem, wherein movement of the valve stem drives movement of the valve member between the first position and the second position;
• a bonnet adapted to couple the actuator to the valve body, the bonnet being arranged between the actuator and the valve body, comprising:
• a first connector adapted to couple to the actuator, the first connector comprising a plurality of first bonnet lugs having a plurality of first spaces between adjacent first bonnet lugs of the plurality of first bonnet lugs, the first spaces arranged to permit movement of corresponding actuator lugs to move axially with respect to the bonnet through the first spaces and to block axial movement of the actuator relative to the bonnet when the plurality of first bonnet lugs are axially aligned with the actuator lugs;
• and
• a second connector adapted to couple to the valve body, the second connector comprising a plurality of second bonnet lugs having a plurality of second spaces between adjacent second bonnet lugs of the plurality of second bonnet lugs, the second spaces arranged to permit movement of corresponding valve body lugs to move axially with respect to the bonnet through the second spaces and to block axial movement of the valve body relative to the bonnet when the plurality of second bonnet lugs are axially aligned with the valve body lugs;
• a first seal positioned between the bonnet and the actuator, the first seal arranged axially lower than the plurality of first bonnet lugs;
• a second seal positioned between the bonnet and the valve body, the second seal arranged axially higher than the plurality of second bonnet lugs and axially lower than the first seal;
• and
• a third seal positioned between the bonnet and the valve body, the third seal arranged axially lower than the second seal, the third seal arranged along an opening formed in the valve body and positioned to at least partially overlap a lower portion of the bonnet, the third seal isolating the plurality of first bonnet lugs and the plurality of second bonnet lugs from working fluid within the valve body.