Specifications of "NP" & "RG" AIRFLO burners NP-I & NP-II AIRFLO burners

Transcription

1 uct burners - "NP" & "RG" IRFLO i-11/07 Specifications of "NP" & "RG" IRFLO burners NP-I & NP-II IRFLO burners ifferential gas pressure at burner inlet For burner capacity =0.5 Mtu/h/ft Fuel NP-I NP-II natural gas (1000 tu/ft³ HHV, d = 0.) 5 wc -1/ wc propane (500 tu/ft³ HHV, d = 0.) wc 1 wc Note : For other capacities per foot or gases with different heating values and/or specific weights as shown in the above table, values for differential gas pressure will behave according to the normal laws of physics. Listed values are approximate net pressures at burner inlet, NOT taking into account any losses in piping/gas manifolds etc. Stated pressures are indicative - actual pressures are function of altitude, type of fuel, gas quality. Optimum operation parameters Max capacity Ktu/h/ft (HHV) Operation in this area requires special considerations Optimum design area 1 8 approx. flame lenght in inches Note : Flame length is as measured from leading edge of mixing plates (see sketch on page ) XMPL: Series NP-I IRFLO burner at 3000 sfpm and at 0.5 Mtu/h per foot would have an approximate flame length of 10 in. ontact MXON for operation outside the optimum operation area. irstream velocity across and through your burner s mixing plates must be kept uniform and within desired limits by use of a silhouette profile plate through which the burner fires. Refer to page for more details on sizing of this profile plate. Pilot capacities are nominally rated at tu/h with natural gas differential pressure of 4 wc to wc. Suitable for natural gas, propane and propane-air mixtures. ontact MXON for applications on butane or other gases than specified here. Minimum capacities air velocities (sfpm) Minimum capacities are given as a guideline. They strongly depend on process conditions ir velocities sfpm Minimum capacity Ktu/h/ft (HHV) NP-I NP-II natural gas propane not recommended natural gas propane not recommended Maxon reserves the right to alter specifications and data without prior notice. 005 opyright Maxon orporation. ll rights reserved.

2 i-7/07 uct burners - "NP" & "RG" IRFLO NP-III IRFLO burners ifferential gas pressure at burner inlet For burner capacity =1 Mtu/h/ft Fuel NP-III natural gas (1000 tu/ft³ HHV, d = 0.) 5 wc propane (500 tu/ft³ HHV, d = 0.) wc Note : For other capacities per foot or gases with different heating values and/or specific weights as shown in the above table, values for differential gas pressure will behave according to the normal laws of physics. Listed values are approximate nett pressures at burner inlet, NOT taking into account any losses in piping/gas manifolds etc. Stated pressures are indicative - actual pressures are function of altitude, type of fuel, gas quality Optimum operation parameters Max capacity Ktu/h/ft (HHV) Operation in this area requires special considerations Optimum design area 4 approx. flame lenght in inches Note : Flame length is measured from leading edge of mixing plate (see sketch on page ) XMPL: Series NP-III IRFLO burner at 4000 sfpm and 1 Mtu per foot would have an approximate flame length of 30 in.. ontact MXON for operation outside the optimum operation area (shaded area). irstream velocity across and through your burner s mixing plates must be kept uniform and within desired limits by use of a silhouette profile plate through which the burner fires. Refer to page for more details on sizing of this profile plate. Pilot capacities are nominally rated at tu/h with natural gas differential pressure of 4 wc to wc. Suitable for natural gas, propane and propane-air mixtures. ontact MXON for applications on butane or other gases than specified here. Minimum capacities air velocities (sfpm) Minimum capacities are given as a guideline. They strongly depend on process conditions. ir velocities sfpm Minimum capacity Ktu/h/ft (HHV) NP-IIII natural gas propane Maxon reserves the right to alter sprcifications and data without prior notice.

3 uct burners - "NP" & "RG" IRFLO i-11/07 RG-IV IRFLO burners ifferential gas pressure at burner inlet For burner capacity =0.5 Mtu/h/ft Fuel RG-IV natural gas (1000 tu/ft³ HHV, d = 0.) 5 wc Note : For other capacities per foot or gases with different heating values and/or specific weights as shown in the above table, values for differential gas pressure will behave according to the normal laws of physics. Listed values are approximate net pressures at burner inlet, NOT taking into account any losses in piping/gas manifolds etc. Stated pressures are indicative - actual pressures are function of altitude, type of fuel, gas quality. Optimum operation parameters.4 18 Max capacity Ktu/h/ft (HHV) Operation in this area requires special considerations Optimum design area 1 approx. flame lenght in inches Note : Flame length is as measured from leading edge of mixing plates (see sketch page ) XMPL: Series RG-IV IRFLO burner used with -speed blower at 3000 sfpm and 0.5 Mtu/h per foot or at 1500 sfpm and 0.5 Mtu/h per foot (flame length 14 in. 0.5 Mtu/h / 10 in. 0.5 Mtu/h). ontact MXON for operation outside the optimum operation area (light grey area). irstream velocity across and through your burner s mixing plates must be kept uniform and within desired limits by use of a silhouette profile plate through which the burner fires. Refer to page for more details on sizing of this profile plate. Pilot capacities are nominally rated at tu/h with natural gas differential pressure of 4 wc to wc. For natural gas only. ontact MXON for applications on butane, propane, or other gases than natural gas. apacity at half speed should be limited with fail-safe security. Minimum capacities air velocities (sfpm) Minimum capacities are given as a guideline. They strongly depend on process conditions. ir velocities sfpm Minimum capacity Ktu/h/ft (HHV) RG-IV natural gas Maxon reserves the right to alter specifications and data without prior notice. 005 opyright Maxon orporation. ll rights reserved.

4 i-7/07 uct burners - "NP" & "RG" IRFLO Materials of construction NP-I, NP-II, NP-III, RG-IV NP-I-L, RG-IV-L urner body gray iron STM Grade G3000 luminum Mixing plates ISI 430 = W.S ISI 430 = W.S piece endplates gray iron STM Grade G3000 steel plated piece endplates flange gray iron STM Grade G3000 steel plated plate ISI 430 = W.S ISI 430 = W.S Fasteners luminized and galvanized steel [1] luminized and galvanized steel [1] [1] Optional stainless steel fasteners available for NP-I and RG-IV with aluminum bodies Maxon reserves the right to alter sprcifications and data without prior notice.

5 uct burners - "NP" & "RG" IRFLO i-11/07 Selection criteria ir-stream velocity ir-stream velocity across and through the burner s mixing plates must be kept uniform and within desired limits by use of a silhouette profile plate through which the burner fires. in. (minimum) profile plate should be installed surrounding the interior duct walls at the leading edge of the burner mixing plates. 1) irection of process air movement ) djustable profile plate 3) Fixed profile plate 4) Universal support bracket 5) ifferential pressure switch 4 L 3 1 L Minimum in. Minimum in. Flame length Optimum design ranges for Series "NP" and "RG" IRFLO burners are shown in the graphs on page , page and page Velocities in sfpm are measured with a velometer direct in the duct at the plane of the profile plate and leading edge of burner mixing plates (see above sketch). To determine profile opening areas, add burner displacement areas (ft²/section) from table on page for complete burner assembly to Net Free rea of duct : Net free area of duct (ft²) = Fan volume (scfm) Velocity (sfpm) scfm = fan volume at 88 Kelvin and 1 atmosphere Net free area (ft²) + burner displacement (ft²) = profile area (ft²) The relation between velocity and pressure differential across the burner slightly differ with the ratio between net profile area and total duct section. Velocities should always be confirmed and established by use of a velometer on actual field site installation. Velocity factors (fresh air - 0 F) Velocity fpm ir pressure differential wc Note: differential air pressures are measured via pressure test points located in. upstream and in. downstream the profile plate, near the duct wall at 4 in. into the duct. (See sketch on page ) typical data which may not represent precise pressure drops for all design cases. Maxon reserves the right to alter specifications and data without prior notice. 005 opyright Maxon orporation. ll rights reserved.

6 i-7/07 uct burners - "NP" & "RG" IRFLO Inlet feed limitations The maximum number of units of burner per gas inlet connection should be limited in order to guarantee correct gas distribution inside the burner manifold. Insufficient or badly distributed gas inlet connections may affect flame length, pollutant emissions and temperature distribution downstream the burner. Refer to the table below as a guideline for natural gas, based on a maximum capacity limitation of 0.5 Mtu/h/ft (NP-I & NP-II) and 1 Mtu/h/ft (NP-III). The number of gas inlets should be reconsidered for gases different from natural gas (for example gases with lower calorific value). ontact MXON for more details. NP-I NP-II NP-III RG-IV 1 1/4 end inlet flange 4ft 4ft ft 4ft 1 1/ back inlets [1] 5ft 5ft 4ft 5ft [1] For 3 in. back inlet sections, not more than in. section off any one leg. urner sections urner type NP-I NP-II NP-III RG-IV NP-I RG-IV NP-I RG-IV escription esignation Sketch [1] in. straight section NP-I- NP-II- NP-III- RG-IV- NP-I- (L) RG-IV- (L) NP-I- (LSS) RG-IV- (LSS) 1 1 in. straight section NP-I-1 NP-II-1 NP-III-1 RG-I-V1 NP-I-1 (L) RG-IV-1 (L) NP-I-1 (LSS) RG-IV-1 (LSS) 18 in. straight section NP-I-18 NP-II-18 NP-III-18 RG-I-V18 N/ [] N/ N/ N/ 3 4 in. straight section NP-I-4 NP-II-4 NP-III-4 RG-IV-4 N/ N/ N/ N/ 4 in. x in. elbow section NP-I-L NP-II-L NP-III-L RG-IV-L N/ N/ N/ N/ 5 1 in. x in. T-section NP-I-T NP-II-T NP-III-T RG-IV-T NP-I-T (L) RG-IV-T (L) NP-I-T(LSS) RG-IV-T (LSS) 1 in. back inlet section NP-I-1 NP-II-1 NP-III-1 RG-IV-1 NP-I-1 (L) RG-IV-1 (L) NP-I-1 (LSS) RG-IV-1 (LSS) 7 3 in. back inlet section NP-I-3 NP-II-3 NP-III-3 RG-IV-3 NP-I-3 (L) RG-IV-3 (L) NP-I-3 (LSS) RG-IV-3 (LSS) 8 in. pilot assembly section includes built-in pilot NP-I-P NP-II-P NP-III-P RG-IV-P N/ N/ N/ N/ 1 [1] Sketch see page [] N/ = not applicable urner displacement and weight [1] ast iron bodies with ISI 430 mixing plates and carbon steel fasteners lu bodies with ISI 31 mixing plates and carbon steel fasteners lu bodies with ISI 31 mixing plates and stainless steel fasteners urner type NP-I / NP-II / NP-III RG-IV NP-I RG-IV NP-I RG-IV escription ast iron bodies with ISI 430 mixing plates and carbon steel fasteners rea ft²/ section Weight lbs rea ft²/ section Weight lbs lu bodies with ISI 31 mixing plates and carbon steel fasteners rea ft²/ section lu bodies with ISI 31 mixing plates and stainless steel fasteners in. straight section in. straight section in. straight section N/ () N/ N/ N/ N/ N/ N/ N/ 4 in. straight section N/ N/ N/ N/ N/ N/ N/ N/ in. x in. elbow section N/ N/ N/ N/ N/ N/ N/ N/ 1 in. x in. T-section in. back inlet section in. back inlet section in. pilot assembly section includes built-in pilot N/ N/ N/ N/ N/ N/ N/ N/ [1] Sketches see page Refer to page for dimensions. [] N/ = not applicable Weight lbs rea ft²/ section Weight lbs rea ft²/ section Weight lbs rea ft²/ section Weight lbs Maxon reserves the right to alter sprcifications and data without prior notice.

7 uct burners - "NP" & "RG" IRFLO i-11/07 1 1) NP/RG-*- ) NP/RG-*-1 3) NP-*-18 [1] 4) NP-*-4 [1] 5) NP-*-L [1] ) NP/RG-*-T 7) NP-1 8) NP/RG-* [1] not available in "RG" IRFLO Note: mixing plates of Series "RG" IRFLO burners are slightly longer. See dimensions on page Maxon reserves the right to alter specifications and data without prior notice. 005 opyright Maxon orporation. ll rights reserved.

8 i-7/07 uct burners - "NP" & "RG" IRFLO Pilots, end closures and end inlet flange sets for Series "NP" IRFLO burners ll open ends of burner assembly must be closed off with one of these end closures or pilots. One-piece cast end closures should not be used if temperature rise exceeds 300 F. Series "NP" IRFLO burners esignation escription Model Weight (lbs) NP- One piece end closure set 3.9 NP-P Two piece end plate set.3 NP--SI-3/4" UV [1] One piece pilot set including SI with 3/4"-NPT UV-connection 4.1 NP--SI-1/" FR [1] One piece pilot set including SI with 1/"-NPT FR-connection 3.9 NPF-1-1/4"-FR-SI-1pc-NSI [1] NPF-1-1/4"-FR-SI-1pc-ISO [1] NPF-1-1/4"-FR-SI-pc-NSI [1] NPF-1-1/4"-FR-SI-pc-ISO [1] NPF-1-1/4"-P-NSI NPF-1-1/4"-P-ISO One piece pilot set including SI with 1-1/4" NPT gas inlet connection and FR/UV-connection One piece pilot set including SI with Rp 1-1/4 gas inlet connection and FR/UV-connection Two piece pilot set including SI with 1-1/4" NPT gas inlet connection and FR/UV-connection Two piece pilot set including SI with Rp 1-1/4 gas inlet connection and FR/UV-connection Two piece nd inlet flange set with 1-1/4" NPT gas inlet connection Two piece nd inlet flange set with Rp 1-1/4 gas inlet connection NP-PK w/si [1] Two piece pilot set with SI and FR/UV-connection 7. NP-PK w/o-si [1] Two piece pilot set with SI, FR/UV-connection and adjustable orifice for pilot gas flow 7. NP-PK w/o-si-cock-tube [1] Two piece pilot set with SI, FR/UV-connection, adj.orifice, cock and tubing for pilot gas flow 8.8 NP-P pilot section Pilot section w/uilt-in pilot includes two piece pilot set with SI and FR/UV-connection onto its own special " Series NP IRFLO burner assembly 10.0 [1] SI = spark ignitor - UV = connection for flame scanner FR = connection for flame rod Maxon reserves the right to alter sprcifications and data without prior notice.

9 uct burners - "NP" & "RG" IRFLO i-11/07 Pilots, end closures, and end inlet flange sets for Series "RG" IRFLO burners ll open ends of burner assembly must be closed off with one of these end closures or pilots. One-piece cast end closures should not be used if temperature rise exceeds 300 F Series "RG" IRFLO burners esignation escription Model Weight (lbs) RG-P-pc Two piece end plate set. RGF-1-1/4"-FR-SI-1pc-NSI [1] One piece pilot set including SI with 1/"-NPT FR-connection and 1-1/4"-NPT gas connection 5.0 RGF-1-1/4"-FR-SI-1pc-ISO [1] One piece pilot set including SI with Rp 1/ FR-connection and Rp 1-1/4 gas connection 5.0 RGF-1-1/4"-P-pc-NSI RGF-1-1/4"-P-pc-ISO Two piece end plate set with 1-1/4" NPT gas connection Two piece end plate set with Rp 1-1/4 gas connection. RGF-1-1/4"-FR-SI-pc-NSI [1] RGF-1-1/4"-FR-SI-pc-ISO [1] Two piece pilot set with SI, FR/UV-connection and 1-1/4" NPT gas connection Two piece pilot set with SI, FR/UV-connection and Rp 1-1/4 gas connection.9 RG-PK pilot set w/si-pc [1] Two piece pilot set with SI and FR/UV-connection 301 RG-PK pilot set w/o-si [1] Two piece pilot set with SI, FR/UV-connection and adjustable orifice for pilot gas flow 3.4 RG-PK pilot set Two piece pilot set with SI, FR/UV-connection, w/o-si-cock-tube [1] adjustable orifice, cock and tubing for pilot gas flow 4. RG-P pilot section Pilot section w/uilt-in pilot includes two piece pilot set with SI and FR/UV-connection onto its own special " Series "RG" IRFLO burner assembly 9.3 [1] FR = connection for flame rod SI = spark ignitor Maxon reserves the right to alter specifications and data without prior notice. 005 opyright Maxon orporation. ll rights reserved.

10 i-7/07 uct burners - "NP" & "RG" IRFLO Process flows and oxygen contents Series "NP" IRFLO and "RG" IRFLO burners are used only for the heating of fresh air in motion. Fresh air means air with 1 % oxygen, at ambient temperature, or indirectly preheated via a steam or water coil. It is not recommended to use the burner in recirculating air systems. NP-I, NP-II and RG-IV IRFLO burners may be used if temperature rise does not exceed 840 F. NP-III can be used to heat fresh air up to 100 F. Max. temperature of the fresh air entering the burner is 00 F. Velocity and air flow at operating temperature must be uniform and constant for Series "NP" IRFLO burners. Series "RG" IRFLO burners can operate at 50 % and 100 % of the flow, typically applicable in two-speed air handling systems. Precautions should be taken to prevent overfiring of the burner in such conditions. Piloting & ignition Series "NP" and "RG" IRFLO burners are standard equipped with raw gas pilots to ignite the main flame. Pilot burner is incorporated in the burner endplate. epending on the burner configuration, MXON offers the choice between a complete range of pilot endplate sets. See table on page for proper selection or contact MXON for more detailed information. Permanent pilot operation is not advised use main burner at minimum capacity for continuous operation. lso direct ignition of the burner is possible, as far as acceptable by local regulations. Use minimally 5000 V/00 V ignition transformer for sparking of the spark igniter. ontact MXON for optional ignition equipment in hazardous location. Locate one pilot valve close enough to the pilot burner gas inlet, to guarantee fast and reliable ignition of the pilot burner. Typical ignition sequence Pre-purge of the combustion chamber and installation, according to the applicable code s and the installation requirements. Gas control valve in minimum position Pre-ignition (typically s sparking in air). Open pilot gas valves and continue to spark (typically 5 s to 10 s). Stop sparking, continue to power the pilot gas valves and start flame detection. Trip the burner in case no flame detected from this point on. heck pilot flame stability (typical 5 s to 10 s to prove stable flame). Open main gas valves and allow enough time for the fuel gas to reach the burner (typical 5 s or the time that gas needs to reach the burner). lose the pilot gas valves. Release to modulation (allow modulation of the gas control valve). bove sequence shall be completed to include all required safety checks during the start-up of the burner (process & burner safeties). e advised that some regional codes require proving of cross-ignition by sensing flame at both ends of long burners. Flame supervision Standard connections for flame detection equipment are provided on the different endplates. Refer to selection tables on page and page Only use these connections for correct flame-safeguarding. One-piece endplates have one connection for UV-scanner (scanning parallel to the burner-manifold) and flame rods (mounted parallel with burner body). Two piece endplates have additional alternative connections for flame rod (45 -angle with burner-manifold). Maxon reserves the right to alter sprcifications and data without prior notice.

11 uct burners - "NP" & "RG" IRFLO i-11/07 apacity control Series "NP" and "RG" IRFLO burners are raw gas burners firing in a constant process air flow. Only gas flow to the burner is modulated by the use of a gas control valve. (MXON Series "V" valves, ""-, "M"- or "P"-SYNHRO valves, SMRTLINK Krûmmung soll V). Mechanically limit the minimum gas flow to the burner to guarantee stable flame at minimum fire. ssure that the burner is not overfired by limitation of the max. position of the gas control valve. hanges of process air temperature, system back pressure and other parameters could cause failures or unsafe conditions if the burner control system is not designed to compensate for these. ontact MXON for assistance. Manifolding It is extremely important that the piping between the gas control valve (pipe-train) and the burner inlet is correctly designed to ensure equal distribution of the gas to the burner inlet(s). Particularly with burners with multiple gas inlets, special attention should be given to this. Wrong choice of pipe-diameters, incorrect construction of branch connections, wrong positions of elbow and insufficient straight pipe-length to the burner inlet are some of the factors that may influence burner performance dramatically. elow a few general guidelines to take into consideration when designing the gas manifold (contact MXON for any questions or advice) : In case there are burners on each side of a process air heater, the length of pipe of each side should be the same, so that the pressure in the lines can equalize (see Fig. 1) 1 The pipe length between any manifold offtake or elbow and burner inlet should be at least 4 pipe diameters (see Fig. ) of the nipple used or 1/ times the main manifold pipe diameter, whichever is larger. (4 X < > 1/ Y). X X Y n offtake from a manifold should be straight and not in stream as shown in Fig. 3. lso the offtake should be welded on the manifold in such a way that the smaller pipe does not stick into the main manifold, (saddle weld) thus avoiding turbulence at the take-off point (see Fig. 4). The manifold should continue at least pipe diameters beyond the last take-off (see Fig. 5) X X Maxon reserves the right to alter specifications and data without prior notice. 005 opyright Maxon orporation. ll rights reserved.

12 i-7/07 uct burners - "NP" & "RG" IRFLO Staged combustion Series "NP" and "RG" IRFLO burners combine extremely stable operation with high performance on temperature distribution and on turndown. y the use of staged combustion, turndown may even be dramatically increased. ontact MXON for more information. Fuels Series "NP" IRFLO burners are suitable for natural gas, propane and propane-air mixtures. Series "RG" IRFLO burners are standard designed for natural gas only. ontact MXON for other gases. xpected missions NP-I, II [1] - natural gas [] - fresh process air firing [3] [4] V p [5] apacity/ft Mtu/h fpm 3000 fpm 4000 fpm O lbs/mtu NOx lbs/mtu O lbs/mtu NOx lbs/mtu [] O lbs/mtu NOx lbs/mtu [1] Typical emissions of NP-I and NP-II burners [] Natural gas with 1053 tu/ft³ HHV, sg = 0. [3] Fresh process air 0 F 1 % O [4] Temperature increase ΔT < 450 F [5] ir stream velocity (see page ) across the burner with p / d = 0.35 for 4000 fpm, p / d = 0.4 for 3000 fpm, and p / d = 0. for 000 fpm [] Optimum operation area missions are, however, highly influenced by different burner and process related factors such as type of gas, burner capacity, air stream velocity, process air humidity and temperature, relation duct/profile plate area etc. We strongly advise to contact MXON for evaluation of expected emissions on your typical application. No guarantee of emissions is intended or implied on the above. ontact MXON for specific evaluation of your process and application for a written guarantee of emissions. Maxon reserves the right to alter sprcifications and data without prior notice.

13 uct burners - "NP" & "RG" IRFLO i-11/07 imensions urner sections ll "NP" IRFLO burners shown are available in NP-I, NP-II, and NP-III versions. Use (I, II, III) instead of asterisk (*) in burner designation when ordering. NP-I and RG-IV IRFLO burners are also available with aluminum bodies. See burner sections on page for burner displacement and weights. imensions are identical. Series "NP" IRFLO burners differ from Series "RG" IRFLO burners only by length of mixing plate. imensions in in. unless stated otherwise urner type NP-* RG-IV Maxon reserves the right to alter specifications and data without prior notice. 005 opyright Maxon orporation. ll rights reserved.

14 i-7/07 uct burners - "NP" & "RG" IRFLO esignation NP-*- or NP-*-P imensions in in. unless stated otherwise imensions RG-IV-*- or RG-IV-P NP-*-1 1 RG-IV-*-1 NP-*-1 (NSI) 1 RG-IV-1 (NSI) NP-*-1 (ISO) 1 RG-IV-1 (ISO) NP-* RG-IV-*-18 NP-*-4 4 RG-IV-*-4 NP-*-L RG-IV-*-L NP-*-T RG-IV-*-T NP-*-3 (NSI) 1 RG-IV-*-3 (NSI) NP-*-3 (ISO) 1 RG-IV-*-3 (ISO) Maxon reserves the right to alter sprcifications and data without prior notice.

15 uct burners - "NP" & "RG" IRFLO i-11/07 ndplates Series "NP" IRFLO burners ll open ends of burner assembly must be closed off with one of these end closures or pilots. One-piece cast end closures should not be used if temperature rise exceeds 300 F. esignation Sketch Test conn. (1) Gas inlet () UV conn. (3) SI conn. (4) FR conn. (5) FR alt conn. (5*) Pilot conn. () NP NP-P 7 1/8 NPT NP--SI-3/4" UV - - 3/4 NPT 14 mm - - 1/8 NPT NP--SI-1/" FR mm 1/ NPT - 1/8 NPT NPF-1.1/4"-FR-SI-1pc-NSI 3-1.1/4 NPT 3/4 NPT 14 mm 1/4 NPT bushed - 1/8 NPF-1-1/4"-FR-SI-1pc-ISO 3 - Rp 1.1/4 Rp 3/4 14 mm Rp 1/4 bushed - Rp 1/8 NPF-1-1/4"-FR-SI-pc-NSI 4-1.1/4 NPT 3/4 NPT 14 mm 1/4 bushed 1/4 1/8 NPT NPF-1-1/4"-FR-SI-pc-ISO 4 - Rp 1.1/4 Rp 3/4 14 mm Rp 1/4 bushed 1/4 Rp 1/8 NPF-1-1/4"-P-NSI 5-1.1/4 NPT NPF-1-1/4"-P-ISO 5 - Rp 1.1/ NP-PK w/si 1/8 NPT - 3/4 NPT 14 mm Rp 1/4 bushed 1/4 1/4 NPT. Z / Z 3 / 5 3 / 5 4 5* 4 5* F imensions in inches unless otherwise stated Sketch F Z [1] [1] space for flame rod removal Maxon reserves the right to alter specifications and data without prior notice. 005 opyright Maxon orporation. ll rights reserved.

16 i-7/07 uct burners - "NP" & "RG" IRFLO ndplates Series "RG" IRFLO burners Note : all open ends of burner assembly must be closed off with one of these end closures or pilots. One-piece cast end closures should not be used if temperature rise exceeds300 F.... esignation Sketch Test conn. (1) Gas inlet () UV conn. (3) SI conn. (4) FR conn. (5) FR alt conn (5*) Pilot conn. () RG-P 1 1/ RGF-1.1/4"-FR-SI-1pc-NSI 3-1.1/4 NPT 1/ 14 mm 1/4 bushed 1/4 1/8 RGF-1-1/4"-FR-SI-1pc-ISO 3 - Rp 1.1/4 Rp 1/ 14 mm Rp 1/4 bushed 1/4 Rp 1/8 RGF-1-1/4"-FR-SI-pc-NSI - 1.1/4 NPT 1/ 14 mm 1/4 bushed 1/4 1/8 RGF-1-1/4"-FR-SI-pc-ISO - Rp 1.1/4 Rp 1/ 14 mm Rp 1/4 bushed 1/4 Rp 1/8 RGF-1-1/4"-P-NSI 4-1.1/4 NPT RGF-1-1/4"-P-ISO 4 - Rp 1.1/ RG-PK pilot set w/si 5 1/8-1/ 14 mm Rp 1/4 bushed 1/4 1/4 Z 1 1 3/5 5* 4 5 3/5 5* 4 5* imensions in in. unless otherwise stated Sketch Z [1] [1] space for flame rod removal Maxon reserves the right to alter sprcifications and data without prior notice.

17 uct burners - "NP" & "RG" IRFLO i-11/07 ccessories / Replacement items 14 mm spark ignitor imensions in in. unless stated otherwise 14 mm Thd Flame rod 1/4 NPT imensions in in. unless stated otherwise 1/4 Thd. 7.5 djustable orifice imensions in in. unless stated otherwise 3/8 NPT 1/4 NPT ivision plate Provides isolation of burner feed where desirable. imensions in in. unless stated otherwise F G F G F Maxon reserves the right to alter specifications and data without prior notice. 005 opyright Maxon orporation. ll rights reserved.

18 i-7/07 uct burners - "NP" & "RG" IRFLO Profile plate mounting bracket On certain high temperature rise applications of IRFLO line burners, it is advantageous to partially close off the square or rectangular openings within the burner assembly in addition to installing the profile plate around the outside of the burner in order to increase the velocity sufficiently. The stainless steel profile mounting plate bracket, illustrated in the sketches below, is used to support plates for this purpose. The plate used to close off a portion of the openings will need to be sized for each individual application and therefore will be fabricated and installed by the customer. 3 1) iam. = 1/4 ) Profile plate mounting bracket 3) Profile plate 1 G F H I O J N M L R=K imensions in in. unless stated otherwise F G H I J K L M N O Maxon reserves the right to alter sprcifications and data without prior notice.

19 uct burners - "NP" & "RG" IRFLO i-11/07 urner support brackets F 1) 1-piece burner support bracket G ) -piece burner support bracket [1] J H i 1 [1] Normally used in pairs as shown here. Mount to burner assembly at any joint. imensions in inches unless stated otherwise ø ø F G ø H I J 4.7 3/4 hole /4 hole lectrical feed through G (PTF) S #F H Rubber cover imensions in in. unless stated otherwise #F G H (wrench size) ? ø ø ø imensions in in. unless stated otherwise ø ø ø Maxon reserves the right to alter specifications and data without prior notice. 005 opyright Maxon orporation. ll rights reserved.

20 i-7/07 uct burners - "NP" & "RG" IRFLO xternal mounting assembly Frequently used to provide easy accessibility to spark ignitor and flame supervision components.. 1) Includes mounting plate with feed-through insulators for internal mounting of spark ignitor and flame rod 1 ) xternal mounting plate 3) Used with typical pilot x) spark ignitor y) flame rod 4) Opening required x y F G 3 4 imensions in in. unless stated otherwise F Ø G Ø Maxon reserves the right to alter sprcifications and data without prior notice.