Valves and fittings used with diesel engine fuel oil pressure piping may be threaded in sizes up to and including 60 mm O.D., but screwed unions __________.
A
are to be used on pressure lines in sizes 33 mm O.D. and over
B
over 33 mm O.D. will be permitted in lieu of flanged connections
C
shall not be used in any instance where the fitting is subjected to excessive vibration
D
are not to be used on pressure lines in sizes 33 mm O.D. and over
Loading interactive features...
Question 1 / 205eccefa2bacbc34ba4d477d9
Question 1 of 205eccefa2bacbc34ba4d477d9
Valves and fittings used with diesel engine fuel oil pressure piping may be threaded in sizes up to and including 60 mm O.D., but screwed unions __________.
Valves and fittings used with diesel engine fuel oil pressure piping may be threaded in sizes up to and including 60 mm O.D., but screwed unions __________.