DTH
 
AIR CONSUMPTION - Metric
 

FOR IMPERIAL CONVERSION
NUMA HAMMER AIR CONSUMPTION
 
CONVENTIONAL (l/sec)
  Air Pressure (bar)
Hammer Choke
(mm)
6.8 10.2 13.6 17 20.4 23.8
Patriot 35A blank   75 104 137 174 213
Patriot 40 blank   55 78 110 145 183
Champion 40 blank   78 111 146 182 227
DCS5 blank   112 151 194 243

298

Patriot 50 blank   109 145 190 238 297
DCS6 blank   170 241 307 378 453
Patriot 60W blank   168 236 307 373 446
Patriot 60WQ blank   168 236 307 373 446
Challenger 6 blank   168 222 283 354 448
Patriot 80 blank   231 331 441 542 642
Challenger 80 blank   271 389 519 637 755
Challenger 80Q blank   271 389 519 637 755
Challenger 100 blank   401 571 755    
Patriot 120 blank   503 708 897    
Challenger 120 blank   503 708 897    
Patriot 125 blank   614 850 1086    
Challenger 125 blank   614 850 1086    
Patriot 180 blank 566 850 1133      
Patriot 240 blank 897 1322 1864      
Champion 330 blank 1652 2454 3304      
 
FOR IMPERIAL CONVERSION
REVERSE CIRCULATION (l/sec)
  Air Pressure (bar)
Hammer Orifice
"O" Ring
6.8 10.2 13.6 17 20.4 23.8
Patriot RC46 installed   91 128 187 216 267
Challenger RC100 installed   401 571 755    
Champion RC160 installed 455 701 1142      
Champion RC210 installed 790 1203 1616      
Champion RC300 installed 1133 1700 2267      

Specifications are subject to change without notice.
 
NOTE: Numa RC hammers utilize an orifice "O" ring as a choke. Removal of the orifice "O" ring allows additional air to pass through the hammer for hole cleaning/flushing purposes.

NOTE: These figures are nominal. Conditional and circumstances such as choke size, altitude, ambient temperature, back pressure, formation etc. can and will alter these figures.