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A weld that holds parts of an assembly in proper alignment until the finish welds are made.
Controlling flow velocity with a valve that is neither completely open (100%), nor completely closed (0%). This differs slightly
The time rate of cooling equal to 12,000 BTU / hour (approximately 3517 watts). The energy to maintain a
To actuate or open.
Unlike pipe, tube is designated by its outside diameter and wall thickness, which is often described in terms of
Unstable erratic flow. A typical condition after abrupt direction changes or restrictions in flow. This condition can be undesirable
A hydronic heating or cooling system that utilizes only one coil per terminal unit. This coil has one pipe
Any internal pressure (gauge) less than atmospheric pressure. Absolute vacuum is estimated at 14.5 psi | 100 kPa |
Diverts, stops, or controls flow. Used in PHA systems for isolation (shut-off) of equipment or systems and throttling (control)
