API 6A Choke valve break torque & running torque
API 6A Choke valve break torque & running torque
(OP)
Any body who had work in this type control valves design concern.
I want to know how to calculate break torque & running torque with formula.
Is is Open Thrust (lbs) = (Stem cross section are in inch)X(Line pressure)x(Packing load) + (Seat area)x(Valve factor)x(pressure drop difference)
Please verify my general equation for choke valve(control valve).
Thank you in advance.
My Mott: Stay calm and never give up.

I want to know how to calculate break torque & running torque with formula.
Is is Open Thrust (lbs) = (Stem cross section are in inch)X(Line pressure)x(Packing load) + (Seat area)x(Valve factor)x(pressure drop difference)
Please verify my general equation for choke valve(control valve).
Thank you in advance.
My Mott: Stay calm and never give up.





RE: API 6A Choke valve break torque & running torque
What's the manufacturer say? New or used packing assembly? Service temperature? Lot's of questions.
Rick
RE: API 6A Choke valve break torque & running torque
RE: API 6A Choke valve break torque & running torque
But my question is about equation for calculation break and running torque.I want to design.
Can any body can help me?
My Motto: Keep calm and never give up.
RE: API 6A Choke valve break torque & running torque
Until it was based on actual tests no one would believe it anyway.
Why not draw out what you're trying to do and why you wan to design this rather than just getting the data from a vendor?
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way