Укрпромизол ЛТД

Basalt Sound Absorbing Mats
ТУ У В.2.7-23.9-37807011-001:2019

BZM

ТУ У В.2.7-23.9-37807011-001:2019
ДСТУ Б В.2.7-317:2016

BZM mats are made of BSTV basalt fiber in a lining of fiberglass, basalt or siliceous fabric.

Dimensions
Length – 500mm, 1000mm
Width – 500mm, 1000mm
Thickness – from 30 to 100mm
Sizes of mats can be agreed.

BZM mats do not emit toxic substances and do not form toxic compounds, have a high sound absorption coefficient, and are vibration resistant.
This is an excellent heat and sound insulating material, which is non-combustible, fire-resistant, has low hygroscopicity (does not absorb moisture from the air).
Service life – more than 50 years.

Scope and features of application

  • As sound-absorbing fillers in the design of sound-absorbing devices.
  • Sound insulation of units and mechanisms.
  • Sound insulation in shipbuilding, aircraft manufacturing, car building.
  • Soundproofing in workshops at metallurgical enterprises, thermal power plants, nuclear power plants.
    For noise protection in supply and exhaust ventilation systems, on gas turbine

Specifications

The name of indicators Value for mats
Density kg / m3, no more 30
Thermal conductivity, W / (m · K), no more, at a temperature:

—  (25±5)°С

—  (125±5)°С

—  (300±5)°С

 

0,035

0,055

0,092

Humidity,% by mass, no more 0,4
Compressibility under load 2000 Pa,%, no more 50
Reverb sound absorption coefficient in octave frequency bands,
mats with a thickness of 50 mm and a density (30-100) kg / m3, laid on a rigid base,
Hz, not less than:

125

250

500

1000

2000

4000

 

 

0,15

0,40

0,75

0,85

0,80

0,80

Breaking load, N, more 40
Temperature limit of use of MTPM in a lining:

Fiberglass

Silica fabric

Basalt fabric

 

+450

+850

+850