Figure:16 TAC §65.615(8)

Exhibit 8

SIZE OF BOTTOM BLOWOFF PIPING, VALVES, AND COCKS
Minimum Required
Safety Valve Capacity
lb. (kg) of Steam/Hr.		 Blowoff Piping
Valves, and Cocks
Size, min. in. (mm)
(Note)  
Up to 500 (226) ¾ (20)
501 to 1,250 (227 to 567) 1 (25)
1,251 to 2,500 (568 to 1184) 1 ¼ (32)
2,501 to 6,000 (1185 to 2721) 1 ½ (40)
6,001 (2722) and Larger 2 (50)

Note: To determine the discharge capacity of safety relief valves in terms of Btu, the
relieving capacity in lbs. of steam/hr. is multiplied by 1,000.