weight-loaded regulator

weight-loaded regulator

[′wāt ¦lōd·əd ′reg·yə‚lād·ər]
(engineering)
A pressure-regulator valve for pressure vessels or flow systems; the regulator is preloaded by counterbalancing weights to open (or close) at the upper (or lower) limit of a preset pressure range.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.