Standrar Spud Sizes | High Pressure Inspirator
TABLE 5. STANDARD AVAILABLE 3070 SPUD DRILL SIZES Many spud sizes are available to order as standard sizes. The table shows drill sizes/names and the hole diameter in inches. "BLANK" spud nozzles are also available without a hole which can be custom drilled in the field.
3070-1
3070-2
3070-3
3070-4
3070-5
Drill Name and (DIA. inches)
Spud sizes for use with standard North American natural gas premix gas burners
#68 (.031) #65 (.035)
#59 (.041) #57 (.043) #55 (.052) #54 (.055)
#53 (.060) #52 (.064)
#50 (.070) #46 (.081) #44 (.086)
#41 (.096) #36 (.107)
Spud sizes for standard 3070 compressed air reducers
#47 (.079) #44 (.086)
#37 (.104) 7⁄64 (.109) #33 (.113) #32 (.116)
#29 (.136) 9⁄64 (.141)
#19 (.166) #16 (.177) #15 (.180)
#9 (.196) #5 (.206)
Other available standard spud sizes
#69 (.029)
#70 (.028) #52 (.064) #47 (.079)
#55 (.052) #54 (.055) #31 (.120) #26 (.147)
#65 (.035) #52 (.064) #40 (.098) #34 (.111) #22 (.157)
#50 (.070) #46 (.081) #44 (.086) #22 (.157) #12 (.189)
Maximum diameter hole that fi ts spud
(.313)
(.313)
(.313)
(.313)
(.437)
3070-6
3070-7
3070-8
3070-9
Drill Name and (DIA. inches)
Spud sizes for use with standard North American natural gas premix gas burners
27⁄64 (.422)
#34 (.111) #31 (.120) #30 (.129)
#29 (.136) #22 (.157) 11⁄64 (.172)
#3 (.213) C (.242) J (.277) 5⁄16 (.313)
Spud sizes for standard 3070 compress air reducers
7⁄16 (.438) 15⁄32 (.469) ½ (.500) 17⁄32 (.531)
23⁄32 (.719)
B (.238) F (.257) G (.261)
N (.302) O (.316) Q (.332)
Other available standard spud sizes
1⁄8 (.125) 9⁄64 (.141) #26 (.147) 3⁄16 (.188) 15⁄64 (.234) ¼ (.250) P (.323) U (.368)
3⁄16 (.188) #11 (.191) #2 (.221) F (.257)
21⁄64 (.328)
#41 (.096) #36 (.107) #29 (.136) 13⁄64 (.203)
Maximum diameter hole that fi ts spud
(.437)
(.547)
(.547)
(.813)
Bulletin 3070 Page 5
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