M M M E E E K K K U U U M M M I I I S S S C C C H H H E E E I I I N N N R R R I I I C C C H H H T T T U U U N N N G G G E E E N N N F F F Ü Ü Ü R R R Ö Ö Ö L L L – – – U U U N N N D D D G G G A A A S S S B B B R R R E E E N N N N N N E E E R R R H H H O O O C C C H H H W W W E E E R R R T T T I I I G G G E E E S S S T T T A A A N N N Z Z Z T T T E E E I I I L L L E E E T T T h h h e e e P P P r r r o o o d d d u u u c c c t t t R R R a a a n n n g g g e e e
MEKU is one of the leading partners of the European heating sector and specialised in components and systems for oil burners. We develop, manufacture and sell high-precision combustion heads and top-quality combustion systems for oil and gas burners. We attribute the success of our company to targeted R&D and meeting the needs and requirements of our customers. Our core areas of expertise comprise our strong customer orientation, the high quality of our products and our short delivery times. It is to these factors that we owe our excellent reputation as system supplier and development partner to the burner industry.
The company – development partner and system supplier
MEKU – Burning systems – Innovation for the environment
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Stabilizing discs
Flame tubes
Recirculation tubes
Blue flame mixing units
Burner housings (sheet steel)
Combustion chambers
Ignition electrodes
Product development Tools and devices
Product range (Please click)
Stamping and forming parts
Boiler flange
Stabilizing discs Ø 64 for flame tubes Ø 80 mm
Stabilizing discs Ø 75 for flame tubes Ø 90 mm
Stabilizing discs Ø 80 for flame tubes Ø 100 mm
Stabilizing discs Ø 90 for flame tubes Ø 115 mm
We produce stabilizing discs in different sizes and variants. Other versions on request.
MEKU
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MEKU
Stabilizing disc cpl. Ø 64 for flame tubes- Ø 80x1,5
nozzle stock guidance = Ø 18,55 mm heigth of stabilizing disc = 13,0 mm total length without ignition electrodes = 83,0 mm
Recirculation tops, cone 10° for flame tubes- Ø 80x1,5
art. no. recirculation tube
(Ø x L mm)
length (mm)
spezial features
200132 Ø 80x50 80 without drill holes
197320 Ø 100x70 100 8 drill holes Ø 8 mm
198014 Ø 100x100 130 without drill holes 195136 Ø 100x100 130 8 drill holes Ø 8 mm
198104 Ø 120x100 130 without drill holes
mat. 1.4841with bayonet catch, removable Other versions and/or materials on request.
Blue burner – Mixing units for fuel EL
Performance range of burner acc. to fan: MB 800 graded from ca. 13-35 kW MB 900 graded from ca. 28-55 kW MBK 900 graded from ca. 38-79 kW* * Max. value with reference to fan with ventilator wheel Ø 160 x 52 mm
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MEKU
Mixing head MB 800
Air jet cpl. MB 800
Flame tube MB 800
Adaption tube MB 800
Mixing head MB 900
Air jet cpl. MB 900
Flame tube MB 900 / MBK 900
Adaption tube MB 900 / MBK 900
MB short description
Mixing head MBK 900
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MEKU
art. no. part name length without ignition electrode
(mm)
heigth air jet (mm)
air jet-Ø (mm)
electrode connection
(mm) 203014 mixing head MB 817,5 62,5 35,0 17,5 4,0
197060 mixing head MB 819 63,2 35,7 19,0 4,0 197061 mixing head MB 819 63,2 35,7 19,0 6,4
197062 mixing head MB 821 62,0 34,5 21,0 4,0
197063 mixing head MB 821 62,0 34,5 21,0 6,4
197064 mixing head MB 822 63,2 35,7 22,0 4,0 197065 mixing head MB 822 63,2 35,7 22,0 6,4
197066 mixing head MB 824 63,2 35,7 24,0 4,0
197067 mixing head MB 824 63,2 35,7 24,0 6,4
Mixing heads MB 800
for adaption tube Ø 80x1,5 nozzle stock guidance = Ø 18,55 mm dosage ring = Ø 76,6 mm
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MEKU
art. no. part name length without ignition electrode
(mm)
heigth air jet (mm)
air jet-Ø (mm)
electrode connection
(mm) 196200 mixing head MB 924 64,3 34,3 24,0 4,0
196203 mixing head MB 924 64,3 34,3 24,0 6,4
196201 mixing head MB 927 62,0 32,0 27,0 4,0 196204 mixing head MB 927 62,0 32,0 27,0 6,4
196202 mixing head MB 929 60,5 30,5 29,0 4,0
196205 mixing head MB 929 60,5 30,5 29,0 6,4
Mixing heads MB 900
for adaption tube Ø 90x1,5 nozzle stock guidance = Ø 18,55 mm dosage ring = Ø 86,5 mm
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MEKU
Mixing heads MBK 900
art.no. part name length without ignition electrode
(mm)
height air jet (mm)
air jet-Ø (mm)
electrode connection
(mm) 208016 mixing head MBK 924 61,6 34,3 24,0 4,0
207064 mixing head MBK 924 61,6 34,3 24,0 6,4
208017 mixing head MBK 927 59,3 32,0 27,0 4,0 207065 mixing head MBK 927 59,3 32,0 27,0 6,4
208018 mixing head MBK 929 57,8 30,5 29,0 4,0
207066 mixing head MBK 929 57,8 30,5 29,0 6,4
208019 mixing head MBK 931 56,5 29,2 31,0 4,0 207067 mixing head MBK 931 56,5 29,2 31,0 4,0
208020 mixing head MBK 933 55,2 27,9 33,0 4,0
207067 mixing head MBK 933 55,2 27,9 33,0 4,0
for adaption tube Ø 100x1,5 nozzle stock guidance = Ø 18,55 mm dosage ring = Ø 96,5 mm
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MEKU
art. no. part name heigth (mm)
opening-Ø (mm)
202147 air jet cpl. MB 817,5 35,0 17,5
197068 air jet cpl. MB 819 35,7 19,0 197069 air jet cpl. MB 821 34,5 21,0
197070 air jet cpl. MB 822 35,7 22,0 197071 air jet cpl. MB 824 35,7 24,0
Air jets complete MB 800
nozzle stock guidance = Ø 18,55 mmbase-Ø = 45 mm partial-circle-Ø of attachment tongue = Ø 55,5 mm nozzle mat. St 37 turbulence grid mat. 1.4301
Other versions on request.
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MEKU
art. no. part name heigth (mm)
opening-Ø (mm)
196206 air jet cpl. MB 924 34,3 24,0
196207 air jet cpl. MB 827 32,0 27,0 196208 air jet cpl. MB 829 30,5 29,0
Air jets complete MB 900
nozzle stock guidance = Ø 18,55 mmbase- Ø = 55 mm partial circle-Ø of attachment tongue = Ø 65,5 mm nozzle mat. St 37 turbulence grid mat. 1.4301
Other versions on request.
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MEKU
art. no. diameter (mm)
length (mm)
197163 100 x 1 150
for adapter tube Ø 80x1,5 connecting-Ø 76,6 mm mat. 2.4851 (alloy 601)
Flame tubes MB 800
Other dimensions or materials on request.
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MEKU
art. no. diameter (mm)
length (mm)
196212 120 x 1,0 190
connecting-Ø 86,5 mm mat. 2.4851 (alloy 601) for adapter tube Ø 90x1,5 (MB 900) adapter tube Ø 100x1,5 (MBK 900)
Flame tubes MB 900 / MBK 900
Other dimensions or materials on request.
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MEKU
art. no. length (mm)
special features
196023 200 -
202007 185 Expanded to Ø 90x22,5 and space for
bayonet catch for L-max90 burner case
tube-Ø 80x1,52-parts welded end part mat. St 37 recirculation ring mat. 1.4841
Adapter tubes MB 800
Other versions as well as other dimensions on request.
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MEKU
tube-Ø 100x1,53-parts welded adapter tube mat. St 37 front part mat. 1.4828 adapter ring mat. 1.4841
Adapter tube MBK 900
Other versions as well as other dimensions on request.
art.no. length (mm)
spezial features
196213 200 without space for bayonet catch
202008 190 with space for bayonet catch for l-max90
burner case
tube-Ø 90x1,52-parts welded end part mat. St 37 recirculation ring mat. 1.4841
Adapter tube MB 900
art.no. length (mm)
spezial features
207069 233 opening retracted Ø 87
MEKU
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Twin ignition electrodesfor stabilizing discs
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Ignition electrodesfor MB mixing heads
Ignition electrodesfor MBK mixing heads
MEKU
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art. no. plug (mm)
wire Ø (mm)
189200 4,0 1,7
195163 4,0 1,2 189201 6,3 1,7
195164 6,3 1,2
mat. ceramics: KER 221 special steatitemat. wire: Kanthal Cr Al 25 5 middle of hole to end of wire = 51mm
Twin electrodes standard
MEKU
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mat. ceramics: Al2O3 (95%)mat. wire: Kanthal Cr Al 25 5
Set of ignition electrodes incl. mounting part for MB-mixing unit
Set of ignition electrodes incl. mounting part for MBK-mixing unit
for MB art. no plug (mm)
distance stopper – end of
wire (mm)
MBK 900 207125 4,0 54 MBK 900 207126 6,3 54
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MEKU
Boiler flange (sliding flange with sticking ring)
art. no. flame tube-Ø (mm)
angle of inclination (degree)
193178 80 0°
193009 80 2°
197006 90 0° 193010 90 2°
194030 90 4°
193180 100 2°
dimensions 153x153 mm attachment holes Tk- Ø 140 – 172 mm attachment screws max. M10 completely zinc-plated without treatment on request
Combustion chambers for boilers
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MEKU
We produce combustion chambers out of nearly all heat resistant metals up to a thickness of 2 mm. The dimension of the combustion chamber is depending on the requirements and the furnace. Diameters up to 400 mm and lengths up to max. 500 mm are available.
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MEKU
Burner housing
art. no. part name pos. 201025 burner housing, non-treated 1
201052 air regulation disc, zinc-plated 2 201065 air bolt set, zinc-plated 3
burner housing L-max 90 optimized for blue burners also usable for yellow burners Simple burner housings for yellow burners on request.
L-max 90 short description
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Stamping and forming parts
Our customers profit in particular from our experience of producing top-quality products / components in-house. We are well-established as a supplier of high-precision stamping and forming parts. The flexibility of our production enables us to manufacture the smallest batch sizes.
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MEKU
High-quality stamping parts are produced for various sectors in the motor industry, electronics industry, in the mechanical, measuring and control engineering.
Research and development – the key to success
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MEKU
In the laboratory of MEKU our technicians work out new ideas for the realization of balanced burning methods. Today leading burner manufacturers use our experience for the conception of their specific solutions.
The own tooling department and construction
The networked CAD/CAM system combines design with tool-making, the cornerstone of our production. We manufacture most of the tools used as well as customer tools in our in-house production.
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MEKU
• Stamping/Forming tools • Follow-on composite tools• Shaping dies • Drilling and thread cutting
MEKU – burner case L-max 90 The burner case L max 90 – a new MEU development– completes the article range of blue flame-mixing facilities which belong to the MB 800 and MB 900 product series. The name L-max 90 is a universal steel sheet burner case in welded execution with performance increasing inside features. A bayonet catch flame tubes can be fitted with a max. diameter of 90 mm. The L-max 90 case configuration is based on the principle of the approved hybrid fan technology. The result shows that the ventilator, despite its small and compact style, satisfies all physical requirements to realize burner performances in combination with a blue flame mixing system (e.g. MB 800/900) from 14 till at least 50 kW. The L-max 90 case is particularly designed for outfitters who would like to save development costs and tool investments for an own high performance burner case. You have the choice to purchase the L-max 90 as an individual component or as a complete package combined with the MEKU blue flame mixing systems MB 800, MB 900 or MBK 900. The package contains all parts of sheet metal that are needed for the complete construction and for the boiler connection of a burner. The burner hood is not part of the delivery.
The L-max 90 burner case has to be equipped with a ventilator wheel of the size 133 x 52 L-E. The upper static (0 flow) limited value of fan pressure amounts nearly up to 20 hPa. For the individual adaptation of the fan performance, e.g. for the use of Low-NOx or yellow flame mixing facilities, the static fan pressure can be reduced to about 10 hPa by an air regulating plate sucking sided. The fine adjustment specific to the company requirements will be carried out on the discharge side via a well-arranged linear gate. The operation and fixation of all adjusting elements can be handled with one single tool.
Diagram of the interior view of the high efficient burner case L-max 90. Subject to alteration. 06.03.2001 bo.
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Data sheet MEKU-burner case L-max 90 Optimized universal burner case with high stability of fan pressure.
base: hybrid fan technology,
licence Punker
material: sheet steel, welded
dimensions: (mm) 280x225x97,5
weight acc. to attachments: (kg) 2,5-3
flame tube diameter, max.: (mm) 90x1,5
ventilator wheel, recommended: (mm) 133x52-L
power of engine: (Watt) ab 90
speed: (1/min)2750
fan pressure max. at 0 flow: (hPa) ca.20
pressure sucking sided adjustable: (hPa) ca.10-20
air regulation pressure sided: by air bolt
performance range as a blue burner: (kW) ca. 14-52 as a yellow burner: (kW) ca. 17-75
Attachment to choice: air regulating disc, air bolt set, engine flange, inlet silencer, relay angle, transformer angle, boiler flange with service holder, attachments zinc-plated, case without treatment, inlet silencer (synthetic mat.). Subjet to alteration.
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MEKU Blue-flame mixing unit MB ... As a leading European manufacturer of high-precision mixing units for the oil and gas burner industry MEKU has invested several years in high innovative development projects. The realization of reliable and technically high-quality burning systems is the central aspect. Supported by an efficient, practice oriented sample production every component is tested and optimized systematically. The results are evaluated with the help of modern test and measuring techniques in the own laboratory. The MB blue-flame mixing unit is the youngest result of intensive development work out of the house MEKU. The special qualities with regard to a practice-oriented handling, high operational safety and lowest exhaust gas pollution are outstanding. In addition the MB is connectable to all boilers and burners suitable for blue flame running. The impressive MEKU MB technology set the start for a new generation of low-emission burning systems for liquid fuel. Blue flame – built up immediately The MEKU blue-flame mixing unit MB/MBK starts with high recirculation volume immediately into the low-emission stationary operation state. Despite this starting modus a safe flame formation is ensured. Due to this quality the MB-mixing units are very well suitable also for later installation at existing firing facilities primarily in connection with customary burner cases.
The appearance - MB/MBK Due to the burning specific orientation the proportions of the MB /MBK seem rather unconventional. In combination with extensive recirculation openings a large-volume flame tube permits a very stable operating state also at low NOx values. The modular style of the MB series makes service and storekeeping easy. The base mixing unit is suitable for each burner size. By easily interchangeable air nozzles with graded opening diameters the total performance capacity of the burner can be completely used. Furthermore the modular design of the MB-mixing units offers the possibility of an individual adaptation to the most different boiler or burner versions. The MBK series stands out due to a greater range of capacity and is particularly suitable for demanding combustion chamber geometries. Furthermore the MBK was designed for both variations: it can be equipped with conventional flame- supervisory-systems (IRD, UVD) as well as alternatively with a ignition and ionization supervision-facility in combination. Besides a variable adjustment a firm adjustment of the recirculation openings is possible with a spring-equipped nozzle stick.
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Umpteen times approved: the MEKU – blue flame mixing unit in detail
The well developed MB technology which primarily stands out for the unproblematic adaptability to customer needs makes the blue burner absolutely capable for single use. In this technology MEKU gained experiences for more than a decade.
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The principle of the MEKU blue fire-mixing facilities MB/MBK is based on the proved method of the spin supported flame stabilization in combination with a low atmospheric pressure exhaust gas recirculation. An approved basic element is the maintenance-free adjusting mechanics by which you have to adjust the recirculation openings only once before first start-up. This special method of an exhaust gas volume optimization was used by MEKU with a blue flame system serially for the first time. It is required only once to position the mixing head in the burner specific adapter tube, this means the burner is brought into line with the given fire room conditions. The result is lowest NOx emission with an almost linear course over the complete range of capacity. Another essential element is the air nozzle (at the MB series interchangeable) with the integrated spin grid which leads the complete combustion air tangentially around the oil nozzle. This air nozzle has several functions. It causes a very good cooling of the oil nozzle and the air spin supports the fuel pulverization and distribution. Moreover, it delivers the air stream energy which produces a low atmospheric pressure zone around the flame base in connection with the flame tube so that the necessary amount of exhaust gas will be sucked by the recirculation openings. In addition, the spinning air is supporting the flame stabilization so that no flame holder is required. Depending on the position of the mixing head in the adapter tube (to be determined accordingly) the dosage ring alternatively the guide jar covers the recirculation openings more or less. Therefore the exhaust gas recirculation rate can optimally be brought appropriately into line with the respective combustion chamber and efficiency ratios. As a result the pollutant substances are reduced to lowest values in the exhaust gas.
Picture left: MB-mixing unit Picture left: MBK-mixing unit back
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