Week 14 challenge

Objective:

The objective of this project is to design the assembly of the Butterfly valve and apply the GD&T concepts to the various parts of the Butterfly Valve.

Name of the Parts:

1. Body

2. Shaft-Stem

3. Top Flange

4. Disc Plate

5. Lever Handle

6. Nut

COMPONENTS OF BUTTERFLY VALVE

Various components of butterfly valve and GD&T applied to them are shown below.

BODY 

Butterfly valves are usually fixed between two pipleines using flange couplings. Body of our Butterfly valve and GD&T applied to the same using Siemens NX CAD are shown below.

 

SHAFT 

The disc/plate, lever and nut are assembled to this shaft.

RETAINER 

Retainer is a kind of washer fixed on the body of butterfly valve.

DISC 

When valve is fully opened or closed the disc is rotated a quarter turn.Disc is mounted on shaft. When the valve is closed, the disc is turned so that it completely blocks off the passageway.When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid.

Handle

Handle is mounted at an end of shaft outside the body. Hand lever is usually used in small sized Butterfly valves. It is used to open or close the valve.

 

NUT

It is fixed at the top end of shaft to keep the lever and retainer on position relative to the body of butterfly valve.

ASSEMBLY 

After completing the modelling of various components of butterfly valve, all parts were assembled together using Siemens NX Assembly workbench.

  

CONCLUSION

Butterfly valve was successfully designed and GD&T applied to all parts and the assembly of the Butterfly valve.