MK series boilers (heat exchangers)

MK series boilers are used for heating of large sized residential and industrial premises and supplying heat for technological needs.

MK series boilers are to be installed on or near combustion chamber. Enforced circulation pumps are mounted on the servicing door shielding.

Heat exchanger may be delivered with pneumatic cleaning system (optional).

Boilers may be delivered with heat insulation or corrugated steel shielding or it may be mounted in the heat plant.

Product Description

Boiler model		K-720MK	K-1000MK	K-1500MK	K-2000MK	K-2500MK	K-3000MK	K-3500MK	K-4000MK	K-5000MK
Boiler type		Water heating boiler with mechanical burning chamber, smoke tubes
Nominal heating output (QN), kW		720	1000	1500	2000	2500	3000	3500	4000	5000
Minimal heating output (Qmin), kW		216	300	450	600	750	900	1050	1200	1500
Efficiency, %		85	85	85	85	85	85	85	85	85
Aerodynamic resistance at QN, not more than, Pa		600	630	655	680	700	720	740	760	800
Exhaust temperature at boiler flue outlet, °C		180	180	180	180	180	180	180	180	180
Exhaust volume, m3/h		2279	3166	4749	6363	7915	9499	11082	12665	15831
Smoke exhaust pipe dimensions, mm		1010×430	1010×430	1190×185	1510×252	1510×252	1510×252	1510×252	1510×252	1510×252
Operating water pressure, MPa (bar)		6 (0,6)	6 (0,6)	6 (0,6)	6 (0,6)	6 (0,6)	6 (0,6)	6 (0,6)	6 (0,6)	6 (0,6)
Minimum return water temperature during operation, ºC		60	60	60	60	60	60	60	60	60
Maximum permitted operating water temperature, ºC		110	110	110	110	110	110	110	110	110
Water flow, at Δt =20 ºC, t/h		30,78	42,76	64,15	85,54	106,93	128,32	149,71	171,1	213,88
Minimum water flow, t/h		20,64	28,66	42,99	57,32	71,65	85,98	100,31	114,64	143,3
Hydraulic resistance at Δt =20 ºC, mm H2O st		0…400	0…400	0…400	0…390	0…400	0…410	0…420	0…430	0…450
Water volume in the boiler, m³		2,8	2,9	5,2	10,6	10,8	11,1	11,3	11,6	12,4
Heat exchange area, m²		58,5	60	145	268	279	290	301	312	334
Connection pipes	conditional diameter, mm (inches)	65 (2½”)	65 (2½”)	133	133	133	133	133	133	133
Connection pipes	flange diameter, Ø mm	160	160	241	241	241	241	241	241	241
Mass (not greater than), kg		4300	4500	7000	15000	15500	16000	16500	17000	18000

Dimensions

Boiler type	K-720MK	K-1000MK	K-1500MK	K-2000MK	K-2500MK	K-3000MK	K-3500MK	K-4000MK	K-5000MK
H, mm	2390	2590	3150	4000	4010	4010	4010	4010	4010
B, mm	1560	1560	2130	2950	2960	2960	2960	2960	2960
L, mm	3780	3780	3610	4430	5110	5230	5390	5540	5860
B1, mm	1290	1290	1810	1840	2310	2310	2310	2310	2310
L1, mm	3100	3100	3100	3100	3880	4060	4220	4370	4700

Schemes

Recommended connection to the heating system diagram:

MK series boilers (heat exchangers)

Kalvis, UAB

Domestic boilers

Industrial boilers

Services