receptacle 260 in the same way as adapter 250 engages with receptacle 260 via formation of a high pressure seal through engagement of cam locks 220 and locking ring 240 fig1 depicts night cap secured into pressure control assembly 200 in the manner just described it will also be seen on fig1 and 13 that night cap 270 advantageously provides a shackle or other conventional lifting attachment this feature enables lifting apparatus such as a crane to attach to night cap 270 while secured in pressure control assembly 200 providing a convenient hitch point and lifting connection for the entire pressure control apparatus this feature thus facilitates for example lowering raising of the entire apparatus during connection or disconnection from the well head or between the wellhead and other transportation fig1 and 13 further depict vent line 400 provided in fitting f as previously described above with reference to fig2 in currently preferred embodiments vent line 400 provides no internal mechanisms and acts as a simple conventional relief line with suitable connection fittings at either end e g bolted flange o ring or threaded connection vent line 400 allows fluid under pressure in pressure control assembly 200 above wellhead w to be relieved and drained at such times as for example during removal of pressure control assembly 200 from wellhead w fig1 through 15 depict quick test ports 500 and associated manifold box 510 provided on pressure control assembly 200 fig1 shows quick test ports 500 and manifold box.