M series boilers with “volcanic” fuel supply

M series boilers are used for heating of large sized residential and industrial premises and supplying heat for technological needs. Fuel used: saw dust, wood chips. Larger pieces of wood can be burned by loading them through the combustion chamber doors.
Main characteristics of these boilers:

* for more efficient and environmentally friendlier combustion fuel humidity content should not exceed 45%

* Good economic and environmental performance

balanced water flow in the heat exchanger protects it from overheating and residue
preheated primary and secondary air is supplied into the combustion chamber
Efficient combustion is achieved by correct rate between the heat resistant concrete and heat exchanging surfaces. Primary and secondary air fans are separate
For more efficient heat exchange turbulators are mounted into tubular heat exchanger
Auger conveyor supplies fuel into the boiler which is spread in the combustion chamber
Boiler operates together with fuel storage and supply equipment
Ash is removed manually from the ash tray

Boiler controller controls

Fuel supply conveyor
Primary and secondary air fans
Boiler exhauster
Boiler recirculation pump

As an option boiler may be fitted with pneumatic heat exchanger cleaning system

Product Description

Description			K-100M	K-140M	K-190M	K-250M	K-320M	K-400M	K-500M	K-600M	K-720M	K-850M	K-950M
Nominal output		kW	95	140	190	250	320	400	495	600	700	850	950
Minimum output		kW	30	42	57	75	96	120	150	180	216	255	285
Efficiency		%	82
Fuel humidity quotient		%	Mixture: 30 % humidity chips + 30 % humidity sawdust, proportion 50/50
Fuel used			Saw dust, Chips (length not greater than 50mm), fire wood, waste wood, saw dust or peat briquettes
Water temperature adjustment range		ºC	60 – 110
Maximum operating pressure		MPa	6
Hidraulic resistance at Δt=20ºC to			370	380	390	410	420	430	440	440	450	460	470
Combustion chamber dimensions		H B L	620 500 730	620 500 930	770 680 1000	770 680 1400	820 680 1400	970 880 1500	970 800 1500	1100 1000 1700	1100 1000 1900	1100 1000 2060	1300 1000 2060
Door dimensions, BxH		mm	400×500	400×500	600×620	600×620	600×620	600×620	600×620	600×620	600×620	600×620	600×620
Fuel consuption		Kg/h	38	53	72	95	122	153	191	229	275	324	362
Water volume in the boiler		m3	0,22	0,27	0,53	0,68	0,68	0,94	1,12	2	2,15	2,25	2,35
Water yield Δt=20ºC		t/h.	4,26	5,97	8,11	10,68	13,67	17,09	21,37	25,65	30,78	36,35	40,62
Connection points	Tubes	mm	Ø68(2,5″)	Ø68(2,5″)	Ø68(2,5″)	Ø68(2,5″)	Ø68(2,5″)	Ø81(3″)	Ø81(3″)	Ø81(3″)	Ø81(3″)	Ø81(3″)	Ø81(3″)
	pipe connection	mm	Ø160	Ø160	Ø160	Ø160	Ø160	Ø185	Ø185	Ø185	Ø185	Ø185	Ø185
	Chimney diameter	mm	240×240	240×240	290×290	290×290	290×290	Ø325	Ø325	Ø380	Ø380	Ø480	Ø480
Exhaust gases		m3/val	507	710	963	1267	1622	2028	2535	3042	3650	4309	4816
Aerodinamic resistance		Pa	110	110	120	130	200	210	240	260	280	300	310
Mass		kg	800	900	110	2000	2200	2800	3100	3900	4300	4700	5000

Dimensions

Description, mm	K-100M	K-140M	K-190M	K-250M	K-320M	K-320M	K-400M	K-500M	K-600M	K-720M	K-850M	K-950M
H B L	1940 1000 1580	1940 1000 1625	2260 1200 1950	2260 1200 2280	2260 1200 2280	2680 1400 2400	2830 1400 2600	2830 1560 2760	2760 1560 3030	2760 1560 3220	3180 1840 3150	3180 1840 3545
A	710	710	890	890	890	1090	1090	1090	1256	1256	1476	1476
C	930	1125	1195	1395	1585	1504	1700	1890	2086	2282	2370	2760
D	1160	1335	1435	1630	1825	1800	2000	2200	2370	2560	2700	3095
E F	1600 1120	1600 1120	1900 1300	1900 1300	1900 1300	2220 1490	2220 1490	2370 1640	2480 1670	2480 1670	2543 1605	2543 1605
M	260	260	270	270	270	380	380	380	400	400	395	395
P	240×240	240×240	290×290	290×290	290×290	Ø325	Ø325	Ø380	Ø380	Ø480	Ø480	Ø480
T	Ø65	Ø65	Ø65	Ø65	Ø65	Ø80	Ø80	Ø80	Ø80	Ø80	Ø80	Ø80

Schemes

Recommended connection to the heating system diagram:

M series boilers with “volcanic” fuel supply

Kalvis, UAB

Domestic boilers

Industrial boilers

Services