Q:What is the medium flow rate when the centerline butterfly valve is fully open?

On the pipeline, mainly from cutting and throttling. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation.

Q:How does the pneumatic butterfly valve control the angle of opening?

This is really not good, control seems to be pneumatic defects, can only rely on the feeling

Q:Can the inlet and outlet of butterfly valve be reversed? Why? What will happen if the reverse gear is installed?

Are butterfly valves and check valves fitted together?Butterfly valve is nothing positive and negative ah!

Q:How to control the single acting pneumatic butterfly valve?

There are single acting pneumatic head, we must pay attention to often open or normally closed, we must pay attention to.

Q:oil coming from valve into turbo charger

depends on the year of the duramax, some do have a pvc valve one is on the valve cover on one year and on another year the valve is down at the bottom of the engine it screws in, i would check with your local dealer, the should give you an idea, if the turbo has an line follow it the other is just mainly a vent on the valve cover, is the oil coming in or coming out of the turbo?

Q:In the pipeline attached building Atlas 05S502, in the middle of a water meter and check valve, the two sides are divided into two butterfly valve, want to ask why to arrange this way, what is the role of the two butterfly valve?

Check the water gauge and check valve on both sides to facilitate the maintenance and replacement of water meter and check valve.

Q:How many kinds of butterfly valves are there?

What's the score?There are central butterfly valve, double eccentric butterfly valve, three eccentric butterfly valveAnd according to the materialAnd according to the way of connection

Q:Who was the first doctor to discover Pulmonary Valve Stenosis? Also, who was the first doctor to perform surgery for it? Please and thank you for your help.P.S. I have this condition.

1761 - Pulmonary valvar or valvular stenosis is one of the more common forms of congenital heart malformations and it has been extensively studied since the original description of pulmonary valve stenosis by John Baptist Morgagni in 1761. 1888 - Tetralogy of Fallot, first characterized by Dr.Etienne Fallot in 1888, is present in about 3000 children born each year in the United States. It is a combination of four heart abnormalities. Dodrill and his colleagues employed it with success for the open correction of a stenotic pulmonary valve in October 1952.

Q:What do you mean, handle, butterfly valve, hard back and soft back?

The butterfly valve of the handle butterfly valve is installed in the direction of the diameter of the pipe. In the butterfly valve body cylindrical channel, the disc shaped butterfly plate revolves around the axis, the rotation angle is between 0 degrees -90 degrees, when rotates to 90 degrees, the valve is fully open. This valve is mounted horizontally.Butterfly valve has an elastic seal and metal seal two types of seals. Resilient sealing valve. The sealing ring can be mounted on the valve body or attached to the periphery of the disc.The hard back is the metal seal, and the soft back is the elastic seal.

Q:What does "C" in D971F-16C DN450 RF mean for electric butterfly valves?

C represents the valve body and the material is cast steel;D stands for butterfly valve; 9 stands for electric; 7 stands for clip type; 1 represents middle line butterfly valve; 16 stands for nominal pressure 1.6Mpa; RF stands for flange joint; in the form of protruding surface.