Assertion: valve's stem | /r/CapableOf | extend beyond the bonnet
Facets:
Source sentences:
text: Around the valve stem 14, on top of the gland flange 61, a felt wiper 66 is mounted, and is held in place by an outwardly convex holed disc wiper clamp 67, thus avoiding a dirt pocket about the valve stem 14 where the stem extends beyond the bonnet.