20 CAR § 880-1003 – Gauge cocks

(a) Gauge cocks are not required on new installations since the 1995 ASME code, or on older installations that are CSD-1 compliant.
(b) Boilers that have two (2) water glasses located on the same horizontal lines are not required to have gauge cocks.
(c) No outlet connections, except for control devices, drains, steam gauges, or apparatus of such form which does not permit the escape of an appreciable amount of steam or water therefrom shall be placed on the pipes connecting a water column or gauge glass to a boiler.