§197.310. Air compressor system.

46 C.F.R. § 197.310

A compressor used to supply breathing air to a diver must have—

(a)

A volume tank that is—

(1)

Built and stamped in accordance with section VIII, division 1 of the ASME Code with—

(i)

A check valve on the inlet side;

(ii)

A pressure gage;

(iii)

A relief valve; and

(iv)

A drain valve; and

(2)

Tested after every repair, modification, or alteration to the pressure boundaries as required by § 197.462;

(b)

Intakes that are located away from areas containing exhaust fumes of internal combustion engines or other hazardous contaminants;

(c)

An efficient filtration system; and

(d)

Slow-opening shut-off valves when the maximum allowable working pressure of the system exceeds 500 psig.

Notes, amendments, and revision history

Authority: 33 U.S.C. 1509; 43 U.S.C. 1333; 46 U.S.C. 3306, 3703, 6101; Department of Homeland Security Delegation No. 0170.1.

Source: CGD 76-009, 43 FR 53683, Nov. 16, 1978, unless otherwise noted.