Mats Akoterm STI

AKOTERM STI is a ready-to-use product consisting of mineral wool strips glued to the coating material.

AKOTERM STI are intended for thermal insulation of pipelines and ducts of round, square, rectangular cross-section and apparatus at a temperature of insulated surfaces from -120 ° С to 500 ° С with a coating layer of fiberglass and from -120 ° С to 250 ° С with a fiberglass coating and aluminum foil.

STIs are available in diameters from Ø108 and above. By agreement with the consumer, the manufacture of products with a diameter / size of Ø57 is allowed.

The types of coating materials used are PCT (P) fiberglass, fiberglass (T), aluminum foil (A), as well as any other rolled material as agreed with the customer.

Legend example:

Prefabricated heat-insulating mineral wool vertically layered AKOTERM STI grade 75 coated with aluminum foil 3000 mm long, 1000 mm wide and 60 mm thick:

STI 75/А-3000.1000.60. TU BY 101474788.001 — 2011

STI mounting technology: the product is wrapped around an insulated surface and secured with a bandage.

Technical characteristics of AKOTERM STI, in millimeters

Name nominal size *		Value nominal size
Length, L		Up to 8000, incl.
Width, b		600 – 1260
Thickness, h		20 – 100 at intervals of 10

* By agreement with the consumer, the manufacture of STI of other sizes is allowed.

Name indicator	The value of the indicator for the STI brand
Name indicator	50	75	125
Density, kg/m3	30 to 50	50 to 75	75 to 125
Compressibility under load 2000 Pa (0.02 kgf/cm2), %	no more than 5	no more than 3	no more than 2
Thermal conductivity, W/(m·K), at a temperature: - (298 ± 5) К (25 ± 5) 0С - (398 ± 5) К (125 ± 5) 0С	no more than 0,040 no more than 0,050	no more than 0,042 no more than 0,056	no more than 0,044 no more than 0,058
Humidity, % by weight	no more than 1	no more than 1	no more than 1
Combustibility group *: STI 50/А, СТИ 75/А STI 50/Т, СТИ 75/Т STI 50/P, СТИ 75/P	G1 NG G2

* Combustibility group of mineral wool and fiberglass NG;

flammability group of aluminum foil G1;

flammability group fiberglass fiberglass G2.

The main features and advantages of AKOTERM STI:

the possibility of manufacturing both for a specific diameter of the pipeline, and of any length according to the customer's request;
STI design allows during installation to withstand guaranteed design thickness of the heat-insulating layer over the entire insulated surface;
installation of STI is carried out with minimal labor;
after installation STI retains its original thickness throughout the entire period of operation.

Recommendations for transportation, storage and installation

During storage and transportation it is necessary to protect products from moisture. Products rolled up in rolls must be stored and shipped in a vertical position to a height of not more than two meters.
At the construction site, the insulating product is wrapped around the pipeline and secured with galvanized metal wire bandages, steel or polypropylene tape in the amount of three bandages per mat.
When arranging the insulation of vertical pipelines, ducts, and containers, the thermally insulated product is rolled up to the scaffold, where it is unpacked and wrapped around an insulated surface.

Helpful information

This section of the website contains calculation tables that will help simplify the work of design institutes, customers, contractors and other interested organizations.

Calculation table of the sweep length of AKOTERM STI, in millimeters.

Outer diameter pipe, mm	The thickness of the insulating product, mm
Outer diameter pipe, mm	20	30	40	50	60	70	80*	90	100
108	450	550	600	650	700	800	600 / 850	600 / 900	650 / 950
133	550	600	650	750	800	850	650 / 950	650 / 1000	750 / 1050
159	600	700	750	800	900	950	750 / 1000	750 / 1100	800 / 1150
219	800	900	950	1000	1050	1150	1200	950 / 1250	1000 / 1300
273	1000	1050	1100	1150	1250	1300	1350	1450	1150 / 1500
325	1150	1200	1300	1350	1400	1450	1550	1600	1650
377	1300	1350	1450	1500	1550	1600	1700	1750	1800
426	1450	1550	1600	1650	1700	1800	1850	1900	2000
478	1600	1700	1750	1800	1900	1950	2000	2050	2150
530		1850	1900	2000	2050	2100	2150	2250	2300
630			2250	2300	2350	2400	2500	2550	2600
720			2500	2550	2650	2700	2750	2850	2900
820			2850	2900	2950	3000	3100	3150	3200
920			3150	3200	3250	3350	3400	3450	3500
1020			3450	3500	3600	3650	3700	3750	3850
1220			4100	4150	4200	4250	4350	4400	4450
1420			4700	4750	4850	4900	4950	5000	5100

* Instead of an insulation thickness of 80, 90, 100, a thinner two-layer insulation is recommended

An example of designating the length of a scan

AKOTERM STI 75 / T-1250.1000.40, where:

STI — prefabricated insulating product;
75 — density grade;
T — type of coating fiberglass;
1250 — scan length of the product in mm;
1000 — width in mm;
40 — thickness in mm.

Fastener Length

The length of the fastening material (wire or bandage) in meters running per 1 meter running pipe when attaching AKOTERM STI

Outer diameter pipe, mm	The thickness of the insulating product, mm
Outer diameter pipe, mm	20	30	40	50	60	70	80	90	100
108	1,60	1,82	2,04	2,25	2,47	2,69	2,90	3,12	3,34
133	1,67	1,8	2,31	2,52	2,74	2,96	3,17	3,39	3,61
159	1,87	2,40	2,59	2,81	3,02	3,24	3,46	3,67	3,89
219	2,80	3,00	3,24	3,46	3,67	3,89	4,11	4,32	4,54
273	3,40	3,60	3,82	4,04	4,26	4,47	4,69	4,81	5,12
325	3,95	4,17	4,39	4,60	4,82	5,04	5,25	5,47	5,69
377	4,50	4,70	4,95	5,17	5,38	5,60	5,82	6,03	6,25
426	5,00	5,30	5,48	5,70	5,91	6,13	6,35	6,56	6,78
478	5,60	5,80	6,04	6,26	6,48	6,69	6,91	7,13	7,34
530		6,39	6,61	6,82	7,04	7,26	7,47	7,69	7,91
630			7,69	7,91	8,12	8,34	8,56	8,77	8,99
720			8,67	8,88	9,10	9,32	9,53	9,75	9,97
820			9,75	9,97	10,18	10,40	10,62	10,83	11,05
920			10,83	1,05	11,27	11,48	11,70	11,92	12,13
1020			11,92	12,13	12,35	12,57	12,78	13,00	13,22
1220			14,08	14,30	14,52	14,73	14,95	15,17	15,38
1420			16,25	16,47	16,68	16,90	17,12	17,33	17,55

AKOTERM STI Translation System

Thickness isolation	Comparative scorecard
Thickness isolation	1 m2 in 1 m3	1 m3 in m2
20	0,02	50
30	0,03	33,33
40	0,04	25
50	0,05	20
60	0,06	16,66
70	0,07	14,28
80	0,08	12,50
90	0,09	11,11
100	0,1	10

Calculation table of thicknesses of thermal insulation of pipelines located outdoors

Prefabricated heat-insulating vertically layered products from AKOTERM mineral wool.

Outer diameter pipe, mm	Insulated surface temperature, °С
Outer diameter pipe, mm	50	75	100	125	150	175	200	225	250	275	300
108	57	70	81	88	95	100	106	110	115	120	125
133	61	74	84	93	101	106	111	118	124	126	128
159	61	76	87	95	103	111	118	124	130	131	132
219	63	78	90	98	106	114	120	128	134	135	136
273	65	81	93	102	110	117	123	131	138	141	144
325	66	82	94	103	112	120	127	134	140	145	150
377	67	83	95	105	114	122	130	136	143	149	155
426	68	85	97	107	117	125	132	139	146	153	160
478	69	86	99	109	119	128	136	143	150	157	164
530	70	87	100	111	121	130	138	145	152	160	166
630	71	89	102	114	124	133	142	150	157	165	172
720	72	90	103	115	126	136	144	153	161	168	175
820	73	91	104	117	127	138	148	156	164	172	179
920	74	93	106	118	129	140	149	159	166	174	182
1020	75	93	107	120	131	141	150	160	168	177	185
1220	76	95	109	122	134	144	154	164	172	181	190
1420	77	96	110	123	135	147	157	166	175	184	193
Curved surface with a diameter of more than 1500 mm and a flat surface	80	102	118	134	147	161	173	187	199	209	219

*With an insulation thickness of 110 mm or more, a two-layer insulation device is recommended

Calculation table of thicknesses of thermal insulation of pipelines located in the room

Prefabricated heat-insulating vertically layered products from AKOTERM mineral wool

Outer diameter pipe, mm	Insulated surface temperature, °С
Outer diameter pipe, mm	50	75	100	125	150	175	200	225	250	275	300
108	44	56	64	71	77	82	88	91	94	99	104
133	45	58	67	75	82	87	92	98	103	107	110
159	47	62	71	79	86	91	97	103	109	112	116
219	50	66	77	85	92	100	108	113	118	123	127
273	51	69	80	90	98	106	113	118	124	130	136
325	54	71	82	93	103	110	117	123	130	135	141
377	54	73	85	96	106	114	121	128	135	141	147
426	55	74	86	98	108	116	125	132	139	147	151
478	57	76	89	100	111	120	127	135	142	149	155
530	57	78	91	103	112	121	130	138	145	151	158
630	58	80	93	105	115	126	135	142	150	157	164
720	59	80	94	107	118	128	137	145	153	161	168
820	60	82	96	109	120	130	140	149	157	165	173
920	61	83	97	110	122	133	143	151	160	168	176
1020	61	84	98	112	124	135	145	154	163	171	179
1220	61	85	100	114	126	137	147	157	166	175	183
1420	62	86	102	116	127	139	150	160	168	177	187
Curved surface with a diameter of more than 1500 mm and a flat surface	68	92	106	120	131	143	154	163	173	184	195

Feedbacks

“Vertical-layered heat-insulating mats can be widely used for thermal insulation of pipelines of various diameters of overhead and channel laying, as well as industrial premises with a coolant temperature of up to 350 C. Due to the transverse arrangement of the fibers, the mat retains its shape around the entire perimeter of the pipeline, as a result of which there is no need to use support rings for a metal coating”.

Rykov A.N., chief engineer of RUE “BELENERGOPROM”

“AKOTERM heat-insulating vertically layered mats glued to fiberglass and other rolled materials are domestic products of high factory readiness, having a coating material, so that their use increases the speed and quality of installation. Thermally insulating mats vertically layered “AKOTERM” can be used as a heat-insulating and cover layer for heat-steam-condensate pipelines of various diameters laid above ground in channels, technical undergrounds of buildings with a coolant temperature of up to 350 ° C during new construction, reconstruction and repair”.

Kotov V.S., chief engineer of KPIUP MINSKINZHPROEKT

“In terms of technical characteristics, AKOTERM heat-insulating mats are not inferior, but in terms of strength characteristics they are significantly superior to imported analogues that are used in the Republic of Belarus. We consider it appropriate to use these materials at the facilities of Minsk as thermal insulation during the construction of new ones, as well as in the repair and restoration of existing heating mains, laying of heat pipes in the premises of residential and industrial buildings, as well as for above-ground heat and steam condensate pipelines, and we recommend the use of heat insulation ACOTERM mats at their facilities”.

A. Trifonov, Deputy Director of the Unitary Enterprise “Capital Construction Management of the Minsk City Executive Committee”

“Vertical-layered mats are produced for each standard size of pipelines with a cover layer, which significantly reduces labor costs in the work, minimizes waste materials”.

Dragun A.A., chief engineer, Minsk Heating Networks

“It should be noted that the structural feature of AKOTERM thermal insulation with vertical lamination and the alternation of lamellas of various densities ensured both proper wrapping around the pipelines and the rigidity of the frame when plastering it and coating it with a metal casing of galvanized steel while preserving the specified (design) insulation thickness”.

V.A.Dubovik, Director of TeploEnergoZashita LLC

“Given the wide range of pipelines, it was advisable to use heat-insulating products in the form of rolls five meters long. The use of fiberglass plastic RST-415L and 410F as a cover material made it possible to carry out installation work on the insulation of pipelines in various operating environments”.

S.L.Skorobogaty, Director of the Minskenergospetsremont Branch of RUE Minskenergo.

“The mats arrived at the facility individually packed. The length of each mat corresponded to the diameter of the pipeline, i.e. when wrapping, cutting was excluded. The coating material had a longitudinal and transverse overlap, which prevents moisture from entering the thermal insulation. Due to the vertical arrangement of the fibers, the mats had additional rigidity, which made it possible to apply force when compressing and fastening them with bandages without fear of reducing the thickness of the heat-insulating layer. The listed characteristics can significantly increase labor productivity in pipeline insulation with good quality, without the use of expensive imported analogues”.

Boyarchuk V.V., Director of OLASTROY LLC

Contacts

Sale Akoterm C, Akoterm STI

Akoterm Berezino Private Enterprise

223053, Belarus, Minsk, Borovlyany, ul. Logoiskaya, 6

Working hours:

From 8:30 to 17:00
Sat, Sun — day off

+375 17 505-29-19

+375 17 548-46-48 (tel/fax)

+375 17 505-17-03

+375 44 749-37-41 (A1)

+375 33 602-72-09 (MTS)

akoterm@mail.ru