The first support apparatus is used to detachably support {HEAD ~ the valve body} aligned with {TAIL ~ a hole} 
The first support apparatus is used to detachably support { HEAD ~ the valve body } aligned with { TAIL ~ a hole }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL