Series NP & RG AIRFLO Line Burners Page 4-21.5-AP-1 s S eries NP/RG AIRFLO Burners - cast iron bodies NP-I NP-II NP-III RG-IV NP-V #430SS mixing s #430SS mixing s #430SS mixing s #321SS mixing s #430SS mixing s Item NP1 NP2 NP3 RG4 NP5 straight section N P-I-1 2 20865 N P-II-1 2 20871 NP-III-1 2 1115352 1115377 R G-IV-12 23677 (14) NP-V-12 34251 18" straight section N P-I-1 8 21870 N P-II-1 8 21874 N P-III-1 8 21878 R G-IV-1 8 23686 (21) NP-V-18 34255 24" straight section N P-I-2 4 21871 N P-II-2 4 21875 N P-III-2 4 21879 R G-IV-2 4 23687 (27) NP-V-24 34256 6" straight section NP-I- 6 N P-II-6 20872 N P-III- 6 20903 R G-IV- 6 23678 NP-V-6 34250 6" x 6" elbow section N P-I-L 20869 N P-II- L 20875 N P-III- L 21352 R G-IV- L 23683 NP-V-L 34253 x 6" tee section N P-I-T 20868 N P-II- T 20874 N P-III- T 21351 R G-IV- T 23682 NP-V-T 34254 back inlet section 36" back inlet section 6" pilot assembly section includes built- in pilot & spark ignitor 6" pilot assembly section with built-in pilot only N P-I-12B 20867 N P-II-12 B 20873 N P-III-12 B 20905 R G-IV-12 B 23679 (17) NP-V-12B 34252 N P-I-36B 22012 NP-II-36 B 1115379 N P-III-36B 22014 R G-IV-36 B 24096 (45) NP-V-36B 34257 N P-I-6P 24874 N P-II-6 P 26670 N P-III-6 P 26671 R G-IV-6 P 24875 (10) NP-V-6P NP-I-6P 1020084 RG-IV-6 P 1020085
Page 4-21.5-AP-2 Series NP & RG AIRFLO Line Burners s Burner Type NP-I, NP-II, NP-III & NP-V RG-IV Plain End 1 piece end closure set N P-EC 36710 Closure Sets 2 piece end set 20881 21651 End Inlet & Sets Fastener Kits N PF- 1-1/4 -FR-SI 36712 NPF- 1-1/4 -FR 1063669 2 piece pilot set includes spark ignitor N PF- 1-1/4 -FR-SI 20883 R GF- 1-1/4 - FR-SI 21654 2 piece end inlet flange set N PF- 1-1/4 -EP 20882 R GF- 1-1/4 - EP 21652 1 piece end closure set includes spark ignitor N P-ED-FR-SI 36711 1 piece spark end closure set w/ext gap SI for direct NP-ED-FR-DS 1103735 1 piece end closure set w/out spark ignitor NP-ED-FR 1063668 N P-ED-SI-3/4-UV 37004 NP-ED-3/4-UV 1063670 1 piece pilot set w/ext gap SI for direct spark NP-ED-DS-3/4-UV 1108545 2 piece pak-pilot set includes spark ignitor N P-PAK 23184 23183 orifice & spark ignitor orifice, shut-off cock, tubing and spark ignitor N P-PAK 23185 23187 N P-PAK 23186 23188 P ilot kit w/si,.75" NPT scanner hole 1052954 1052957 assembly orifice and SI assembly w/tubing, and adj. orifice w/.75" NPT scanner hole, adj..75" NPT scanner hole, SI 1052955 1052958 1052956 1052959 2 pc end inlet flange set w/alternate UV and SI 39723 (2) 35560 to flange fastener kit 1053850 1053917 1 piece end fastener kit 1053919 1053924 1053920 1053925 1053921 1053926 USB 23577(CS) / 39940(SS) F lame rod (L = 7-1/8) rod with rubber cover bracket (NP) gas adjustable orifice (for pak-pilots only)
Series NP & RG AIRFLO Line Burners Page 4-21.5-AP-3 S eries NP/RG AIRFLO Burners - aluminum bodies Item NP-I- NP1AL RG-IV- RG4AL straight section N P-I-12 45606 R G-IV-12 39800 (10) 6 " straight section N P-I-6 45605 R G-IV-6 39799 x 6" tee section N P-I-T 45608 R G-IV-T 1034084 N P-I-12B 45607 R G-IV-12B 39801 (14) 36" N P-I-36B 45609 (28) R G-IV-36B 1041513 (32) Plain End Closure Sets 1 piece end closure set N P-EC 36710 2 piece end set 20881 21651 N PF-1-1/4-FR-SI 36712 End Inlet and NPF-1-1/4-FR 1063669 Sets 2 piece pilot set includes spark ignitor N PF-1-1/4-FR-SI 20883 R GF-1-1/4-FR-SI 21654 Fastener Kits 2 piece end inlet flange set N PF-1-1/4-EP 20882 R GF-1-1/4-EP 21652 1 piece end closure set includes spark ignitor N P-ED-FR-SI 36711 1 piece end closure set w/ext gap SI for DS NP-ED-FR-DS 1103735 1 piece end closure set w/o spark ignitor NP-ED-FR 1063668 N P-ED-SI-3/4-UV 37004 NP-ED-3/4-UV 1063670 1 piece pilot set w/ext gap SI for direct spark NP-ED-DS-3/4-UV 1108545 2 piece pak-pilot set includes spark ignitor N P-PAK 23184 23183 orifice & spark ignitor orifice, shut-off cock, tubing and spark ignitor N P-PAK 23185 23187 N P-PAK 23186 23188 P ilot kit w/si,.75"" NPT scanner hole 1052954 1052957 assembly orifice and SI assembly w/tubing, hole, SI and adj. orifice s w/.75"" NPT scanner hole, adj..75"" NPT scanner 1052955 1052958 1052956 1052959 to flange fastener kit 1053850 1053917 1 piece end fastener kit 1053919 1053924 1053920 1053925 1053921 1053926
Page 4-21.5-AP-4 Series NP & RG AIRFLO Line Burners s S eries NP/RG AIRFLO Burners - aluminum bodies Item NP-I- NP1AL RG-IV- RG4AL U SB 23577 (CS) / 39940 (SS) F lame rod (L= 7.125) rod & rubber cover bracket (NP) gas adjustable orifice (pak-pilots only)
Series NP & RG AIRFLO Line Burners Page 4-21.5-AP-5 s S eries NP/RG AIRFLO Burners - aluminum bodies w/stainless steel fasteners and back up bars Item NP-I-(ALSS) NP1ALSS RG-IV-(ALSS) RG4ALSS straight section NP-I-12 1042278 RG-IV-12 1042283 6 " straight section NP-I-6 1042277 RG-IV-6 1042282 x 6" tee section NP-I-T 1042280 RG-IV-T 1042285 NP-I-12B 1042279 RG-IV-12B 1042284 36" NP-I-36B 1042281 RG-IV-36B 1042286 Plain End Closure Sets Fastener Kits 2 piece end set 45612 [1] 51034 [1] 2 piece pak-pilot set includes spark ignitor N P-PAK 45610 [1] 51029 [1] 2 piece pak-pilot includes adjustable orifice & spark ignitor N P-PAK 45611 [1] 51032 [1] to flange fastener kits 1053851 1053918 1053922 1053927 1053923 1053928 USB 39940 F lame rod (L = 7.125) rod & rubber cover bracket (NP) gas adjustable orifice (pak-pilots only)