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MWS / MWK

Product catalog summary

Overview
The document provides comprehensive details on mineral wool silencers, specifically the MWS and MWK models, designed for noise reduction in air-conditioning systems. These silencers are constructed with mineral fibre boards covered with glass silk, making them non-flammable and resistant to bacterial growth, compliant with DIN 4102 A1 and VDI 6022 standards.

Types of Silencers

MWK-OB / MWS-OB: Suitable for frequencies between 500 Hz and 8000 Hz, featuring a galvanised sheet steel frame.
MWK-LL / MWS-LL: Similar to OB models but with perforated sheet steel on both sides.
MWK-MB / MWS-MB: Designed for lower frequencies (63 Hz to 500 Hz), with a sheet steel cover on one side.
MWK-LB / MWS-LB: Also for lower frequencies, with additional perforated cover on uncovered areas.

Construction and Models
The silencers are available in various models and dimensions, with options for different baffle thicknesses (100 mm and 200 mm). They are constructed from galvanised sheet steel and can be customised with features like angled frames or stainless steel models upon request.

Technical Data
Technical specifications include gap velocity, volumetric flow, and noise levels according to DIN 45 646. Insertion and pressure loss data for different models are also provided.

Installation and Maintenance
Proper installation is crucial for optimal performance, with recommendations to follow manufacturer instructions. Inspection openings should be provided for maintenance and service.

Quality and Standards
The silencers meet RAL quality standards and ensure hygienic air quality, preventing microbial contamination. They have been tested by TÜV-Süd Life Service.

Additional Information
Customisation options include powder coating, ATEX versions, and additional accessories. Order codes and specifications for different models are also provided.

Specifications
The document outlines specifications for mineral wool baffle silencers, specifically SCHAKO types MWK and MWS, designed to reduce pressure loss. Constructed with mineral fibre boards covered with unmetabolisable glass silk, they are non-flammable according to DIN 4102 A1. The baffle frames are made of galvanised sheet steel, meeting hygienic standards of VDI 6022.

Product Variants

MWK-OB-100/-200: Standard version without additional covers.
MWK-MB-100/-200: Includes a sheet cover offset on one side.
MWK-LL-100/-200: Features a complete perforated sheet cover.
MWK-LB-100/-200: Combines sheet and perforated plate covers.

Construction Details
The duct housing is made of 1.0 mm thick galvanised sheet steel with an airtight saddle joint, capable of withstanding internal pressures up to 1000 Pa. The Metu profile M30 is used on both sides.

Standards and Testing
The baffles are measured according to ISO/DIS 7235 and DIN 45646 standards. They are also inspected by TÜV SÜD Life Service according to VDI 6022 Sheets 1+2 and DIN 1946 Sheet 2.

Materials and Accessories
The standard material used is galvanised sheet steel (-SV), with optional METU profiles M2/M4 (-M2/-M4).

Catalog excerpts

Mineral wool silencer MWS / MWK

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10/02 - 2 Construction subject to change. Version: 12.11.2020 No return possible!

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Mineral wool silencer MWS / MWK Description MWK-OB / MWS-OB MWK-LL / MWS-LL Silencing baffles type MWK-OB Baffles with frame profile in nozzle design for substantial reduction of the pressure loss. The mineral fibre boards are covered with unmetabolisable glass silk, i.e., no bacteria can deposit on the glass silk, and are not flammable according to DIN 4102 A1. Baffles measured to ISO/DIS 7235 and to DIN 45646. Manufactured to the hygienic standards of VDI 6022. For use at a main interfering frequency between 500 Hz and 8000 Hz. The baffle plate thickness is 0.5 mm. The baffle frame is made...

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Mineral wool silencer MWS / MWK MWK-MB / MWS-MB MWK-LB / MWS-LB Silencing baffles type MWK-MB Baffles with frame profile in nozzle design for substantial reduction of the pressure loss. The mineral fibre boards are covered with unmetabolisable glass silk, i.e., no bacteria can deposit on the glass silk, and are not flammable according to DIN 4102 A1. Covered with sheet steel t = 0.5 mm offset on one side. Baffles measured to ISO/DIS 7235 and to DIN 45646. Manufactured to the hygienic standards of VDI 6022. For use at a main interfering frequency between 63 Hz and 500 Hz. The baffle plate thickness...

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Mineral wool silencer MWS / MWK Baffles with frame profile in nozzle design reduce the pressure loss by up to 55% compared with conventional baffles. This gives high energy-saving in the operation of the system! The baffles and baffle silencers are delivered in a hygienic design to VDI 6022. The objective of the VDI 6022 "Hygienic planning, design, operation and maintenance of air-conditioning installations" is a hygienically impeccable interior air quality, i.e., avoidance of microbial contamination of the inhaled air. Accordingly, installation components must not emit any substances, fibres...

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Mineral wool silencer MWS / MWK Models and dimensions Dimensions Silencing baffle type MWK-... Detail X at D=100/200 and H2>200 round design rectangular design D=300 is delivered with a fitted intake sheet L1=L2 + 50 mm Baffle silencer type MWS-... Dimensions of accessories Additional angled frame (at an extra charge) (MWS-... only) Detail Y If the baffles are mounted suspended horizontally or suspended vertically, this mounting should be clarified beforehand with the manufacturing company. To avoid damage during transport and simplify their handling on-site, multi-part baffles will be delivered...

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Mineral wool silencer MWS / MWK Available sizes L1=L2 (mm) Division of the baffle silencer upon request! 10/02 - 7 Construction subject to change. Version: 12.11.2020 No return possible!

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Mineral wool silencer MWS / MWK Division of baffle silencer type MWS-... If the silencer dimensions are in the limiting area with respect to all three dimensions (L/H/B), we reserve the right to change the silencer division. This will limit the weights and dimensions for each individual part to sizes suitable for mounting. Division in height in length 2-part 1-part if L > 1500 2-part 1-part if L > 1500 2-part 2-part if L > 1500 2-part 2-part if L > 1500 2-part 1-part if L > 1500 2-part 2-part if L > 1500 2-part 1-part if L > 1500 2-part 2-part if L > 1500 10/02 - 8 Construction subject to change....

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Mineral wool silencer MWS / MWK Division of silencing baffles type MWK-... Length 1001-1250 baffles will be divided, depending on size, into individual baffles of H and/or L dimensions during manufacture If the baffles are mounted suspended horizontally or suspended vertically, this mounting should be clarified beforehand with the manufacturing company. To avoid damage during transport and simplify their handling onsite, multi-part baffles will be delivered as individual baffles. They are assembled on-site using the fishplates included in the delivery. 10/02 - 9 Construction subject to change....

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Mineral wool silencer MWS / MWK Baffle silencer in divided design When using divided designs of silencer and baffles, a stable installation must be ensured on-site, since the components cannot have any load-bearing function. Divided length Sectioned height Metu flange perforated angled flange screwed Metu flange Divided width Width and height divided screwed 1.) Metu flange Metu flange screwed 1.) Metu flange Metu flange perforated angled flange 1.) Screw clamps are supplied loose. 10/02 - 10 Construction subject to change. Version: 12.11.2020 No return possible!

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Mineral wool silencer MWS / MWK Technical data Gap velocity and volumetric flow MWK-OB-... / MWS-OB-... / MWK-MB-... / MWS-MB-... 100/50 (baffle width/gap width) MWK-OB-... / MWS-OB-... / MWK-MB-... / MWS-MB-... 100/100 (baffle width/gap width) 10/02 - 11 Construction subject to change. Version: 12.11.2020 No return possible!

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Mineral wool silencer MWS / MWK MWK-OB-... / MWS-OB-... / MWK-MB-... / MWS-MB-... 200/50 (baffle width/gap width) MWK-OB-... / MWS-OB-... / MWK-MB-... / MWS-MB-... 200/100 (baffle width/gap width) 10/02 - 12 Construction subject to change. Version: 12.11.2020 No return possible!

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Mineral wool silencer MWS / MWK MWK-OB-... / MWS-OB-... / MWK-MB-... / MWS-MB-... 200/200 (baffle width/gap width) Flow generated noise according to DIN 45 646 MWK-OB-... / MWS-OB-... / MWK-MB-... / MWS-MB-... 100/50 (baffle width/gap width) MWK-OB-... / MWS-OB-... / MWK-MB-... / MWS-MB-... 100/100 (baffle width/gap width) 10/02 - 13 Construction subject to change. Version: 12.11.2020 No return possible!

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Mineral wool silencer MWS / MWK MWK-OB-... / MWS-OB-... / MWK-MB-... / MWS-MB-... 200/50 (baffle width/gap width) MWK-OB-... / MWS-OB-... / MWK-MB-... / MWS-MB-... 200/200 (baffle width/gap width) 10/02 - 14 Construction subject to change. Version: 12.11.2020 No return possible!

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Mineral wool silencer MWS / MWK Insertion loss and pressure loss MWS-OB-... and MWS-LL-... 100 Insertion loss and pressure loss MWS-MB-... and MWS-LB-... 100 De (dB/oct) Construction subject to change. Version: 12.11.2020 No return possible!

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All SCHAKO KG catalogs and technical brochures

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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