1323.14 Identification of Shutoff Valves

Shutoff valves shall be identified with the following:

(1) Name or chemical symbol for the specific medical gas or vacuum system

(2) Gas or vacuum system color code in accordance with Table 1305.1

(3) Room or areas served

(4) Caution to not close or open the valve except in emergency [NFPA 99:5.1.11.2.1]

1323.14.1 Nonstandard Operating Pressures. Where positive pressure gas piping systems operate at pressures other than the standard gauge pressure of 50 psi (345 kPa) to 55 psi (379 kPa) or a gauge pressure of 160

HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICAL VACUUM SYSTEMS

psi (1103 kPa) to 185 psi (1276 kPa) for nitrogen or instrument air, the valve identification shall also include the nonstandard operating pressure. [NFPA 99:5.1.11.2.2]

1323.14.2 Source Valves. Source valves shall be

labeled in substance as follows:

SOURCE VALVE

FOR THE (SOURCE NAME)

[NFPA 99:5.1.11.2.4]

1323.14.3 Main Line Valves. Main line valves shall be

labeled in substance as follows:

MAIN LINE VALVE FOR THE

(GAS/VACUUM NAME)

SERVING (NAME OF THE BUILDING)

[NFPA 99:5.1.11.2.5]

1323.14.4 Riser Valves. The riser valve(s) shall be labeled in substance as follows:

RISER FOR THE (GAS/VACUUM NAME)

SERVING (NAME OF THE AREA/BUILDING

SERVED BY THE PARTICULAR RISER)

[NFPA 99:5.1.11.2.6]

1323.14.5 Service Valves. The service valve(s) shall be labeled in substance as follows:

SERVICE VALVE FOR THE

(GAS/VACUUM NAME) SERVING

(NAME OF THE AREA/BUILDING

SERVED BY THE PARTICULAR VALVE)

[NFPA 99:5.1.11.2.7]

1323.14.6 Zone Valve Box. Zone valve box assemblies shall be labeled with the rooms, areas, or spaces that they control as follows:

ZONE VALVES FOR THE

(GAS/VACUUM NAME)

SERVING (NAME OF ROOMS OR SPACES

SERVED BY THE PARTICULAR VALVE)

Labeling shall either be visible from outside the zone valve box assembly through the cover or be replicated on the outside, but not affixed to the removable cover. [NFPA 99:5.1.11.2.8]