Search results

Pete, That's a great example of "things aren't always as simple as they appear". You've given us a great deal of insight and suggestions for further reading regarding this subject. Looks like I have some more learning to add to my to-do list. Thank you for taking the time to explain things.

Would you expand on the necessity and/or advantage of misalignment. Thanks.

Thank you for the response. We are in agreement that a narrower seat will tend to seal better, but not for the same reasons. Given all else the same, if the form of the valve & seat contact surface are 'perfect' ie zero geometry deviation, 100% contact, smooth surface, etc., a narrow and wide...

That is not quite correct. You are confusing the area of the seating surface with the area based on the valve diameter. Let's say you have a poppet valve 1.00 inch in diameter at the seat (neglect the width of the seat for a moment. This yields an area of 0.785 sq. in. This is the effective...