The document provides step-by-step instructions for creating a Ramsbottom safety valve assembly using SolidWorks. It describes how to construct individual parts like the body, lock nut, link, pin, split pin, valve, lever, pivot, and spring. Detailed diagrams are included to illustrate each modeling step, such as using protrusions, cuts, fillets, patterns, and other features to design the various components.

1. Ramsbottom Safety Valve
Hareesha N Gowda
Asst. Professor
Dept of Aeronautical Engineering
Dayananda Sagar College of Engineering
Bangalore-78

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Part-1: Body

3. • Create parallel plane as shown in fig -2, create sketch as shown in fig-1
• Select both outside circles and create protrusion, thickness 55mm as shown in fig-3
• Select base of protrusion as shown in fig 4, create circle of dia 99mm, fig-5
• Use swept protrusion, select sweep path, right click, select cirle of dia 99mm,
finish. Fig.6
fig-1 fig -2
fig-3
fig 4 fig 5 Fig.65/17/2013 3
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On parallel plane

4. • Use swept cutout, select swept path, right click, then select circle of dia75mm,
click finish. Ref. Fig-1
• Use fillet, create fillet as shown in fig-2 of rad. 12mm.
• Create Threaded hole as shown. Ref Fig 3, 4 and Fig.5
Fig-1
fig-2
Fig 3
Fig 5
Fig 4
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5. fig-1
fillet of radius 24mm
• Create fillet of Rad 24mm as shown in fig-1.
• Create parallel plane as shown in fig-2, create circle of dia 250mm as shown in
fig-3. Create protrusion as shown in fig-4
fig-2
fig-3
fig-4
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6. • Create a parallel plane as shown in fig-1. Create circle of dia 124mm on bottom of the
circular protrusion shown in fig -2 and create circle of dia 99 mm on parallel plane
created as shown in fig 3.
• Use lofted protrusion, select both circles which were
created, right click to accept, finish. Ref fig 4
fig 2
fig 3
fig-1
fig 4
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7. • Create circle of dia 100mm on bottom of the circular protrusion shown in fig -1
and create circle of dia 75mm on parallel plane created as shown in fig 2.
• Use lofted cutout, select both circles which were
created, right click to accept, finish. Ref fig 3 and 4
fig -1
fig -2
fig -3
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8. • Cut view of the part is as shown in fig.1. Remove extra material as you can see in
fig-1, use lofted cut out again as shown in fig-2.
• Create fillet of 12mm as shown in fig 3
fig 3
fig 1
Fig 2
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9. • Create hole of dia 21mm, depth 25mm as shown in fig-1.
• Use circular pattern to create circular array of holes. Use this procedure
• Circular pattern Select feature Right click to accept Select bottom plane
of circular protrusion choose circular pattern in tool bar use fill Give rad
100mm count 6 spacing 60o Select center point of arc Select a point on
the circle Select direction Return.
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10. • Select xz plane, create sketch as shown in fig and create rib as shown in fig-2. Rib
thickness 12, use symmetric thickness option (Both sided arrow mark)
• Use smart mirror to create rib on the other side as shown in fig-3.
fig-1
Fig-2
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11. • Select YZ plane as shown in fig-1, create sketch as shown in Fig 2
• Use symmetric protrusion, use up to next. Ref Fig 3
• Select the plane as shown in fig-4. Create sketch as shown in fig 5.
• Use cut out ( use through next). Ref Fig.6
Fig 3Fig 1 Fig 2
Fig.6
Fig.5
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12. • Select xz plane, create sketch as shown in Fig.1.
• Use revolved protrusion as shown in Fig.2
• Create sketch as shown in fig.3, create symmetric, through all cut out as shown in
Fig.4. Create G3 thread as shown in Fig.5. Create groove and 1mm chamfer as
shown in Fig.5
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Fig.1
Fig.2
fig.3
Fig.4
Fig.
5
Part-2

13. • Select xz plane, create sketch as shown
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Part-3

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Select YZ plane, create sketch as shown, create washer of thickness 6mm Part-4

15. 1. Select top plane
2. Crete the sketch as shown in figure
3. Use symmetric protrusion command, height-9 mm to create features as shown in
figure. Create threaded hole as shown.
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4. Select XZ plane, create sketch as shown in fig. use revolved cutout (outside cut) to create
features as shown in figure. Mirror to other side.
Part-5Lock nut M20

16. Save the previous part (Lock M20 Nut) as
M20 Nut change thickness to 16 mm
Part-6nut M20
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17. Part-7Link
Thickness 6 mm
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18. Part-8Pin
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19. Part-9Split Pin
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Use swept protrusion

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Part-10
XY plane
XZ plane
XZ plane
Valve

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Part-11 Lever

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Part-11 Lever

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Part-12 Pivot

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Part-13: Spring
Use Helical protrusion
Axis length and pitch
pitch=15mm

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Part-13: Spring

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Part-13: Spring

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Part-13: Spring

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