Code of Massachusetts Regulations
522 CMR - BOARD OF BOILER RULES
Title 522 CMR 7.00 - Air Tanks
Section 7.06 - Gauges and Drains
Current through Register 1531, September 27, 2024
(1) Pressure Gauge.
(2) Test Gauge Connection. The Owner/User of the Air Tank shall install a test gauge connection at the request of the District Engineering Inspector or Authorized Inspector.
(3) Bottom Drain Pipe. Each Air Tank shall have a bottom drain pipe fitted with a valve or cock, of the straightway type, in direct connection with lowest water space practicable, or a pipe may be used extending inward from any other location to within 1/4 inch (6 mm) of the lowest point. The minimum size of pipe and fittings shall be 1/2 inch except for tanks 20 inches in diameter or less, in which the minimum size of such pipe and fitting shall be 1/4 inch iron pipe size. If a plug cock is used, the plug shall be held in place with a guard or gland.