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:I was wondering if someone could tell me the manufacturing date on this aircraft engine valve.

Wow Hannah! That's a cool find for sure! It appears to be possibly a valve for a radial aircraft engine as it looks very similar to ones i've seen used in Pratt+Whitney R3350's etc. It looks like it could probably date to the 1940's up thru the 1950's. Look for a Part Number stamped on the valve or on the box. After WW2 there were all kinds of manufacturers making parts for airplanes. Many were gobbled up by competitors, converted to manufacturing other products or went out of business altogether. However, a few did hang on....and I think this may be what has become of Thompson Aircraft today.... Thompson Aerospace, Inc 22431 Antonio Parkway B160-102 Rcho Sta Marg, CA 92688-2804

Q:What's the difference between a butterfly valve and an eccentric butterfly valve? What is the difference in field applications?

Avoid friction and wear on the sealing surface!And, at the time of closing, and opening the opposite, there is a better sealing effect! Now generally use eccentric butterfly valve as the main. That's all I know! If there is any mistake, please forgive me!

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

What's the difference between a worm valve and a manual butterfly valve?The turbine can light and close the valve here. It is more labor-saving and reliable. It is closed and open. Manual operation is relatively difficult, but the manual action is very fast. Fast switching.

Q:The difference between vertical and horizontal butterfly valves in municipal water supply

Function is no difference, mainly the installation conditions are not the same, vertical valve shaft in the vertical direction, the valve well on the deep, horizontal valve shaft in the horizontal direction, the valve width to be larger, and the other is no difference

Q:Butterfly valve D71X-10 and butterfly D371X-10 what is the difference?

Different structure. The handwheel (or handle) of the D71X-10 is mounted directly on the valve stem, and the D371X-10 is operated by means of a bevel gear in combination with the worm, and the handwheel is mounted on the worm.

Q:Transformer butterfly valve and pressure relief valve difference

The oil immersed transformer pressure release valve is a safety device installed in the transformer, when the internal pressure is less than the limit value of the transformer such as 35kPa, which is in closed state, when the transformer internal fault occurs, a large number of transformer oil by pyrolysis, produce large amounts of gas, the internal pressure of the oil tank increased dramatically when the opening pressure exceeds the pressure release valve when the pressure relief valve opens, the internal oil and gas overflow, to release the pressure, avoid the pressure on the inside of the lead tank cracking or permanent deformation, when the fault of transformer internal end, internal pressure tank to reduce pressure release valve closing pressure, it will automatically shut down to prevent outside air enter the inside of the tank or water.

Q:i was changing valve seals and two dropped i can see the head of the valve but a magnet wont pull them up i put air the spark plug hole too but no luck 1985 ford bronco II

well depends .. how far the piston was down and if the valve is still in the valve guide. intake you may have to pull the intake and feed it up from the intake port .. exhaust .. pull the manifold and feed it back up from the exhaust port.. and last .. pull the head .. if the the valve is still in the guide and the piston is not at the top .. you may could turn the engine slowly by hand to the top the piston may push up the valve up . you may be able to pull the valve up then..

Q:Gate valve and butterfly valve which is installed when there is a direction?

There is no direction when installing the valve. The butterfly valve has an eccentric butterfly valve which is in the direction of installation

Q:Which is expensive, butterfly valve?

Gate valve and butterfly valve can not simply take the price there to compare, look at the actual design requirements of the project. General small caliber are selected by the valve, because of better sealing performance, service life is long, the maximum diameter of valve is usually choose to use the butterfly valve to the pipeline DN800800 above, because the valve is cheap, the price is only half of the large diameter valve. Also some pipes from the use of quality point of view, will choose the gate valve. How to use it, please mark the map