Q:What are the advantages of butterfly valves?

B. is cheap, especially when the caliber is big;C. the resistance loss is small and the fluid decreases through pressure;

Q:what are the step i need to do so i can change the valve seals my truck has been smoky.,,, any websites i want todo it myself... 1989 chevy silverado 2500 350 engine 5.7L

bypass purchase a Haynes or Chilton handbook. they're the suitable components of education for this undertaking. If i attempted to element this education here it might take all night to describe all of it.

Q:I did a compression check on my 350 chevy. I have low compression of 175psi on one cylinder.The other seven cylinders range from 195psi to 205psi Could the valves be too tight on the cylinder with 175 psi compression?

Chev engines have hydraulic lifters, keeping the valves adjusted correctly at all times. 20 lbs isn't much to worry about anyway, but if you want dump a little oil (about a tablespoons worth) into that cylinder and recheck it. If the compression jumps up, then your rings are getting weak. If not, you may have a leaky valve.

Q:What kinds of butterfly valves are available? What is the working principle of butterfly valves?

According to the form of sealing:(1) forced sealing butterfly valve.1) elastic sealing butterfly valve. The pressure of the valve seat, seat, or plate is produced when the seal is closed by the pressure from the valve.2) additional torque seal butterfly valve. The seal is produced by a torque that is applied to the valve shaft.(2) pressure sealed butterfly valve. The pressure is greater than the pressure on the seat or plate.(3) automatic sealing butterfly valve. The pressure of the seal is automatically generated by the pressure of the medium.Divided by work pressure:(1) vacuum butterfly valve. Working pressure is lower than the standard atmospheric pressure butterfly valve.(2) low pressure butterfly valve. Butterfly valve with nominal pressure PN<1.6MPa.(3) medium pressure butterfly valve. Butterfly valve with nominal pressure PN 2.5--6.4MPa.(4) high pressure butterfly valve. Nominal pressure PN is 10. 0--80.0MPa butterfly valve.(5) ultra high pressure butterfly valve. Butterfly valve with nominal pressure PN>100MPa.

Q:I got my timing belt done on a 1999 Civic Si on September 26 @ 113,699 miles. at 116,9xx miles I bent a valve on my third cylinder. How likely is it that the timing belt is the reason why this happened? I heard that if the timing belt is a tooth or so off, it could bend a valve. So is it likely that this could have happened? Anyway to check?

If it was a timing belt issue it woudn't have only been one cylinder. And usually if it's only off by one tooth, it just runs poorly. IT has to be off by quite a bit, or the belt has to straight up break to bend a valve,, if that happened it would have made a horrible clanging noise repeatedly before it eventually sputtered out. the 1999 Si revs to what... 8000 rpms? You didn't happen to miss a shift and over-rev the engine, did you?

Q:1988 volkswagon cabriolet, rabbit tried mystery oil let sit for a week having trouble with stuck valves even taken a wrenrch to manually unstick. help any suggestions 4 cyclinder car has been sitting up for about 4 years

The only reason for a stuck valve is if it bent from a thrown timing belt. Sitting 4 years will not cause valves to stick usually, because there is always some oil leakage from the head, that prevents rust. How do you know the valve is stuck? Have you done a compression test, checked the valve clearance? When you say you take a wrench to manually unstick it, it would help to know what you mean, because there is no place to put a wrench that would help unstick a valve that was stuck. You need to tell us much more.

Q:What is the working principle of the electric butterfly valve, and what's the difference between the butterfly valve and the butterfly valve?

General large bore turbine.What is the difference between worm gear pair butterfly valve and center line worm gear butterfly valve?The structure is the same, but the model is different, the central line refers to the butterfly valve, an eccentric structure (371), the clip butterfly valve can do 371, you can do 373, etc.. In more detail, the clamp can be a midline type, 1 single eccentric, 2 double eccentric, 3 is 371372373 midline, then it can be flange connection, it can also be a pair of clamp connection

Q:What is the meaning of the D341*5-10 / 16ZB1 turbine butterfly valve flange said?

D: for clamp, 3: turbine head 4: flange connection 1: vertical plate X5: Ding fine rubber 10/16: nominal pressure Z: gray cast iron valve body, B1: valve plate material is ductile iron

Q:Are fire fighting signal valves and signal butterfly valves the same thing?

The same nature: both can open and close, there is also information back fed.Signal valves are collectively referred to as signal butterfly valves.

Q:Seat has said to the previous owner that the car needs a new air mass meter and dump valve.I am putting a new air mass meter on it.Does it have a dump valve.I know very little on this subject.

every turbo will have a dump valve(waste gate) to regulate the boost to the engine Dump valves are fitted to the engines of turbo charged cars and sit between the turbo outlet and the throttle body. When transitioning from a boosted state to a closed throttle state (as in between shifts), due to inertia, the turbo continues to pressurize air, but the closed throttle prevents the compressed air from entering the engine. In this case the pressure exceeds the preset spring pressure in the dump valve and the excess pressure is bled off to atmosphere. Even with a dump valve the compressed air acts as a brake on the turbo (slowing it down), because the pressure on the backside of the turbo is at a higher pressure than on the front side (and the air actually wants to flow through the turbo backwards). A blowoff valve is a more elegant solution to this problem by allowing the turbo to freewheel when the throttle is closed (equalizing the pressure on both sides of the turbo). Unlike a dump valve a blowoff valve can be used at multiple boost settings without reconfiguration. Blowoff valves are sometimes incorrectly called dump valves because they serve a similar function, but they are very different solutions to the same problem.