Post on 26-Mar-2018
Davies Supply Group Ltd.
Calgary (800) 661-1346 Lethbridge (877) 595-7707 Saskatoon (877) 355-3377
(403) 244-2161 (403) 381-7707 (306) 933-2433
Orifices
For Complete BTU Ranges & Orifice Sizes See Orifice Capacities Chart
Starting Hole Size:
LP Gas Drill Size: #72 (.0250")
Natural Gas Drill Size: #56 (.0465")
Main Burner Gas Appliance Orifices - Brass (Fairview)
Thread Size Part Number Drill Size
1/8 MPT 661043 #43 (.089")
1/8 MPT 661044 #44 (.086")
1/8 MPT 661045 #45 (.082")
1/8 MPT 661054 #54 (.055")
1/8 MPT 661055 #55 (.052")
Main Burner Gas Appliance Orifices - Brass (Frigidaire)
Thread Size Part Number Drill Size
1/4-32" GO5-72 #72 / #56
1/4-28" GO6-72 #72 / #56
16-36" GO7-72 #72 / #56
11/32-32" GO8-72 #72 / #56
7/16-27" GO9-72 #72 / #56
#72 / #56 1/2-24" GO10-72
#72 / #56 9/16-27" GO11-72
#72 / #56 9/16-18" GO12-72
#72 / #56 3/8-27" GO14-72
#72 / #56 1/2-27" GO25-72
#72 / #56 1/8" MPT GO30-72
#72 / #56 1/4" MPT GO31-72
GO5 &GO7 GO6 &GO30
GO8
GO14
Starting Hole Size:
LP Gas Drill Size: #72 (.0250")
Natural Gas Drill Size: #56 (.0465")
Cap Gas Appliance Orifices - Brass
Drill Size Thread Size Part Number
#72 / #56 3/8-27" GO15-72
#72 / #56 1/8" FPT GO17-72
G015-72
GO9, GO10, GO11,
GO12, GO25 & GO31
A75
Davies Supply Group Ltd.
Calgary (800) 661-1346 Lethbridge (877) 595-7707 Saskatoon (877) 355-3377
(403) 244-2161 (403) 381-7707 (306) 933-2433
Orifices
Description Part Number
Repairs obsolete & modern cap orifices GO100-72
Orifice Repair Adapter
A76
Controls the flow of gas to a pilot burner and are designed to be used
with BASO® pilot burners
Has two holes which control and direct the flow of gas. This feature
cases turbulence and a better gas/air mixture for proper combustion
1/4" compression coupling
Pilot Burner Orifices - Natural & LP (BASO®)
Drill Size Type of Gas Part Number
.018" Natural Y90AA-3218C
.023" Natural Y90AA-3223C
.011" Natural & LP Y90AA-4211C
.012" Natural & LP Y90AA-4212C
.023" Natural Y90AA-7223C
19/01/18
Davies Supply Group Ltd.
Calgary (800) 661-1346 Lethbridge (877) 595-7707 Saskatoon (877) 355-3377
(403) 244-2161 (403) 381-7707 (306) 933-2433
Orifices
A77
Pilot Burner Orifices - Natural & LP (Honeywell)
Starting Hole Size:
LP Gas Drill Size: #72 (.0250")
Natural Gas Drill Size: #56 (.0465")
Pilot Gas Appliance Orifices - Brass
Drill Size Thread Size Compression Part Number
#72 / #56 7/16-27" 1/4 GO33-012
05/10/07
388468D 390686 Series
Drill Size Type of Gas Part Number Use With Pilot Burner Series
BCR 18 (.018") Natural 390686-4 Q314, Q345, Q379, Q3450,
Q3451, Q3452
L 10 (.010") LP 388468D CS893, CS894, Q303, Q305
BBR 10 (.010") LP 390686-1 Q314, Q345, Q3450, Q3451,
Q3452
BBR 12 (.012") LP 390686-25 Q345
BBR 14 (.014") LP 390686-24 Q346
Davies Supply Group Ltd.
Calgary (800) 661-1346 Lethbridge (877) 595-7707 Saskatoon (877) 355-3377
(403) 244-2161 (403) 381-7707 (306) 933-2433
Orifices
Pilot Burner Orifices - Natural & LP (Robertshaw)
Drill Size Tube Size Use With Pilot Part Number
Natural Gas
.016" 3/16" #50 & #51 10-042
.018" 1/4" 2C & 2CH 10-021
.022" 3/16" 2C & 2CH 10-208
.026" 3/16" 2C & 2CH 10-209
.014" 3/16" 2C & 2CH 10-212
.018" 3/16" #70, #71 & #11E 10-066
.016" 3/16" #70 & #71 10-126
.020" 3/16" #40 10-044
LP
.013" 1/4" or 3/16" #11 & #11D 10-032
.008" 1/4" or 3/16" #10 & #11 10-028
.010" 1/4" or 3/16" #11 10-030
.010" 1/4" #54 & Mini Pilot 100 10-035
.010" 1/4" 2C & 2CH 10-114
.016" 1/4" 2C & 2CH 10-210
.011" 1/4" 2C & 2CH 10-211
.010" 3/16" #70 & #71 10-067
.013" 3/16" #40A 10-045
.010" 3/16" #11EA 10-067
Universal / Natural Gas or LP
.014" 3/16" #63, #64 & #65 10-069
.018" 3/16" Mini Pilot 100 10-071
.014" 3/16" #70, #71 & #11EB 10-043
Use With Pilots:
2C & 2CH
Use With Pilots:
#10, #11 & #11D
Use With Pilots:
#40, #70, #71, #11E, #11EA & #11EB
A78
Use With Pilots:
Mini Pilot 100, 400, #54,
#55, #63, #64 & #65
Use With Pilots:
#50 & #51
Davies Supply Group Ltd.
Calgary (800) 661-1346 Lethbridge (877) 595-7707 Saskatoon (877) 355-3377
(403) 244-2161 (403) 381-7707 (306) 933-2433
Orifice Capacity Chart
Orifice Capacities
Natural Gas - 1050 BTU - 0.65 SP - GR
LP - 2500 BTU - 1.53 SP - GR
A79