MSA
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Rectangular Splitter Attenuators Type MSA100 and MSA200 Splitters Type MKA100 and MKA200 Energy-saving splitter hygiene design TROX GmbH Heinrich-Trox-Platz D-47504 Neukirchen-Vluyn

Contents · Description Description Construction · Weight Construction · Dimensions · Accessories Installation details · Nomenclature Quick selection tables Insertion loss Air-regenerated noise · Pressure drop Order details MSA · MKA Energy saving by reduced pressure drop 10000 kWh 8000 7000 d. With the coming into effect of VDI 6022, real hygiene requirements have been placed for the first time on air conditioning and ventilation systems. The entire air conditioning and ventilation system must consist of materials in the ventilated area which do not emit either health endangering materials...

Construction • Weight Design versions The splitters of Series M in perforated-plate design differ only slightly from the standard version described here with respect to insertion loss, air-regenerated noise and pressure drop; the data is available in a separate description. All other design versions (e.g., other splitter thickness) or special versions are supplied without a suitability certificate unless special condition have been agreed upon. Weight incl. perforated-plate cover: + 2.5 x H x L. Weights for lengths and heights outside the table must be added up Weight incl. perforated-plate...

Construction · Dimensions · Accessories Splitters – Aerodynamically shaped frame of galvanised sheet steel, stiffened by crimping. – Absorption material (highly bio-degradable, no health risk) with laminated non-woven glass fibre fabric to provide protection against abrasion at air velocities of up to 20 m/s; rot-proof and moisture-repellent impregnation, non-flammable according to DIN 4102 A2. – External lambda panels and internal partitioning panels of galvanised sheet steel. – Operating temperature up to 100 °C. – Can be installed in any position up to a height of and including 1200 mm....

Installation Details · Nomenclature Installation details If splitters are supplied as an installation kit for a sound attenuator or if splitters and attenuator casing are supplied separately, the following paragraph shall be part of the supply contract: “The specified performance data is achieved only if the installation details of the manufacturer and the generally accepted rules of engineering are complied with.” Installation details are specifications, including types and dimensions, in TROX quotations, order confirmations and technical documentation. Width Height Length Splitter...

Quick Selection MSA100 (125...4,700 l/s) Quick selection table MSA100 The volume flow rates specified in the table apply to a pressure drop of approx. 50 Pa. LW is the A-weighted sound power level of the air-regenerated noise in the duct at the attenuator outlet level, applicable to B x H = 1 m2. For other surface areas, the value must be corrected with LS. . Volume flow rate V at ͬ p = 50 Pa 10 Attenuator width height B H* in mm in mm Insertion loss De at 250 Hz in dB 26 34 Attenuator length L in mm 1000 1500 2000 . Volume flow rate V in 3/h 3/h l/s m l/s m l/s m3/h 18

Quick Selection MSA200 (300...18,000 l/s) . Volume flow rate V at ͬ p = 50 Pa 12 Attenuator width height B H* in mm in mm Insertion loss De at 250 Hz in dB 31 41 Attenuator length L in mm 1000 1500 2000 . Volume flow rate V in l/s m3/h l/s m3/h l/s m3/h 22

Insertion Loss MSA100 Insertion loss De All values were measured according to DIN EN ISO 7235 (1995) in the TROX Laboratory. Linear interpolation between specified values is permitted. Test method The Duct Reverberation Chamber Method was chosen from the test methods described in DIN EN ISO 7235. In accordance with this method, a noise is applied to an empty duct the third octave level of which is measured in a connected reverberation chamber under defined conditions. The attenuator to be tested is then inserted in the empty duct and the measurement is repeated. The difference between the...

Insertion Loss MSA200 Identification of the sound attenuator The determination of, inter alia, the required attenuation, permissible pressure loss and air-regenerated noise, dimensions with respect to an attenuator to be used in an air-conditioning and ventilation system (e.g., according to VDI 2081) is an engineering task which must be performed by the customer. The relevant calculated requirements to be placed on the sound attenuator are used to make the optimal choice – in particular, with respect to the price. For this purpose, TROX provides technical data sheets or specific software...

Air-regenerated Noise · Pressure Drop MSA100 Sound power level of air-regenerated noise Air-regenerated noise MSA100 and MSA200 in duct All values were measured according to DIN EN ISO 7235 (1995) in the TROX Laboratory. The data applies to an entry-flow surface B x H = 1 m2. Please refer to table for correction values for different dimensions. The air-regenerated noise in the airway should be at least 7 dB below the noise level of the plant. Attention should be paid to air-regenerated noise in the ducting (e.g. in bends, at diffusers). All values were measured according to DIN EN ISO 7235...

Pressure Drop MSA200 Example Fan sound power level (calculated according to VDI 2081) Max. perm. octave sound power level 86 at SD outlet (VDI 2081) Required insertion loss Insertion loss MSA200-80-4 B x H x L = 1120 x 900 x 2000 mm Design: radial, backwards curved blades; maximum permissible sound power level in duct after sound attenuator: 65 dB(A) Sound power level after attenuator without air-regenerated noise Air-regenerated noise attenuator Sound power level after attenuator with air-regenerated noise A-weighting Octave sound power level (A-weighted) after attenuator in duct Sound...

Specification text Specification text Splitter attenuator type MSA in hygiene design with integrated energy savings splitters and aerodynamically profiled frame (radius > 15 mm) type MKA; efficient according to the chamber absorption principle; profile parts and control plates made of galvanized steel sheet, framework end for the protection of the splitters filling through glass fibre fabrics against abrasion up to air speeds of 20 m/s. Insertion loss, sound power level of air-regenerated noise as well as pressure drops measured according to DIN EN ISO 7235. Mineral wool with RAL-quality...