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Diluter system

MDB-Diluter

The MDB-Diluter system is a free-standing general filtration system, developed to reduce and control the background concentration of heavy welding fumes in a workshop.

Features
  • Less installation costs because the stand-alone unit does not require fixed duct work
  • The frequency inverter saves energy, expands filter life and offers a constant reliable performance
  • Energy saving because of re-circulation of expensive heated or cooled air

The MDB-Diluter is a standalone general welding fume filtration system

MDB-Diluter systems are designed for intensive welding activities with heavy dust load. The unit prevents accumulation of welding fume beyond the legal limits by continuous filtration and dilution of polluted air. The blue haze of welding fumes, caused by the risen fumes that concentrate between 13 and 20 ft (4 and 6 meters) above the floor, is continuously mixed with clean air injected by nozzles.

Recommended for

  • Intensive dry welding activities with a heavy dust load
  • Workshops where ductwork is not possible
  • Reducing welding fumes in the whole workshop for all staff, not only for the welders

Features

  • Relatively small investment to control the welding fumes in your workshop
  • Self-cleaning filter
  • Less installation costs because the stand-alone unit does not require fixed duct work
  • The frequency inverter saves energy, expands filter life and offers a constant reliable performance
  • Energy saving because of re-circulation of expensive heated or cooled air
  • Dustbin level sensor optional

The advantages of clean air

Filtering and diluting the indoor air provides a healthier environment for all your employees, not only the welders who wear their welding ventilation helmets. Also for maintenance technicians, assemblers, machine operators and team leaders. The MDB-Diluter filters the blue haze instantly making it disappear into the filter medium. Another advantage of a cleaner indoor air is less dust deposits on your machinery and thus less downtime and lower maintenance costs.

The MDB-Diluter injects the filtered clean air into workshop. The airflow is completely adaptable in volume and direction to your situation with a throw of up to 164 ft (50 meters). The nozzles are individually adjustable and will not create a draft.

Diluter vs. source extraction

According to the international standards source extraction is always preferred, but for some workshops source extraction is just not (fully) possible. The MDB-Diluter is the ideal solution when source extraction and welding hoods are not possible.

MDB-Diluter can be applied if:

  • You handle large work pieces.
  • You often change welding locations.
  • Your workshops have overhead cranes where ductwork is difficult to install, this is not possible.

W3 compliant filtration

The MDB-Diluter PRO has BiCo spunbond polyester cartridges with PTFE membrane. The MDB-Diluter PRO is welding fume class W3 compliant. This membrane ensures that the dust particles are captured on the surface of the filter, acting as an instant dust cake. As a result, the filter can act at its peak performance right from the start, whereas filters without this PTFE membrane need to collect some dust first before acting at peak performance.

Self-cleaning filter

The MDB-Diluter is self-cleaning. This automatic filter cleaning takes place by compressed air pulses inside each filter cartridge. The RamAirTM pulse amplifier provides superior cleaning for longer filter cartridge life and lower pressure loss. The residue is collected in a 21 gallons (80 liters) dustbin on wheels and can be removed while unit is operational.

A silent solution

The silencer reduces the noise level of the air flow. The sound absorbing case reduces the noise of the fan motor running at maximum power to less than 70 dB(A).

ControlPro filter control

The MDB-Diluter will be available with the newest filter control of Plymovent; the ControlPro. This control has an intuitive touchscreen interface that shows at a glance how the system is performing. The 7’’ touch display shows what the system is doing now, what it will do next and how to keep it in shape. An extensive and very accessible menu allows full adaptability in an easy way. ControlPro can use ethernet communication for a wide variety of connectivity options. ControlPro is the control that meets the full needs of the professional user: Simple, Insight, Connected.

ControlPro Connect

If your filters are steered by ControlPro control systems, Plymovent gives the option to extend it with ControlPro Connect. This is an advanced web portal that gives you the power to monitor, manage and control any number of filters at a glance from your PC, tablet or smartphone.

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Physical dimensions and properties

Inlet diameter:
fan (internal diameter)
Ø 401 mm (15¾ in.)
Outlet diameter:
filter unit
Ø 400 mm (15¾ in.)
fan (internal diameter)
Ø 501 mm (19¾ in.)
Material:
housing
electro-zinc coated steel
(according to DIN EN 10152)
fan
steel
fan housing
steel with aluminium profiles
outlet unit with nozzles
zinc-plated steel and aluminium
silencer
zinc-plated steel
Colour:
housing
black RAL 9005
cover plates
grey RAL 7035
frame
black RAL 9005
Weight (net)
825 kg (1819 lbs.)
Capacity of dustbin
80 litres (21 gallon)

Filter cartridges

Type
CART-PTFE/15
Material
BiCo spunbond polyester with PTFE membrane
Filter surface area
8 x 15 m² = 120 m²
Welding fume class

W3 compliant
(EN-ISO 21904-1:2020)

Compressed air system

Required compressed air quality
dry and oil-free according to ISO 8573-3 class 6
Required pressure
4-5 bar (60-75 PSI)
Compressed air connection
push-in fitting:
• in: G ⅜ in.
• out: 12 mm
Compressed air consumption
40-50 nl/pulse (1.4-1.8 ft³/pulse)

Performance

Fan type
radial
Airflow (max.):
unrestricted
m3/h           CFM
12.000        7,063
operational
m3/h           CFM
9.000           5,297
Throw
max. 50 m (164 ft)
Speed of revolutions
2920 rpm at 50 Hz
Noise level
<70 dB(A)

Electrical data

Power consumption fan
7,5 kW (10 HP)
Available connection voltages
400-690V/3~/50Hz (435)
480V/3~/60Hz (536)
600V/3~/60Hz (636)
Insulation class fan
F with PTC
Nominal current
13,9 A
Protection class
lP 54

Ambient conditions

Operating temperature:
min.
5°C (41°F)
nom.
20°C (68°F)
max.
70°C (158°F)
Max. relative humidity
90%
Suitable for outdoor use
no
Storage conditions
5-45°C (41-113°F)
relative humidity max. 75%

Scope of supply

Central filter unit MDB-8/V − Air inlet module − Spark arrester − Frame − Dustbin − Dustbin trolley − Fan − Frame fan − Silencer − Duct 1,5 m (5 ft) / Ø 500 mm (19.7 in.) − Outlet unit with 6 nozzles − Control equipment, incl. HMI and frequency inverter

Options and accessories

CAR-KIT (recommended option)
Compressed air regulator with pressure gauge
Cable Panel > HMI
30 or 60 m (instead of standard length 15 m)
LightTower
External signaling device

Logistics data

Pallet 1
Gross weight (incl. pallet)
185 kg (408 lbs.)
Packing dimensions
80 x 120 x 230 cm (31 x 47 x 91 in.)
Pallet 2
Gross weight (incl. pallet)
284 kg (626 lbs.)
Packing dimensions
120 x 120 x 165 cm (47 x 47 x 65 in.)
Pallet 3
Gross weight (incl. pallet)
208 kg (459 lbs.)
Packing dimensions
100 x 120 x 225 cm (39 x 47 x 89 in.)
Pallet 4
Gross weight (incl. pallet)
78 kg (172 lbs.)
Packing dimensions
100 x 120 x 225 cm (39 x 47 x 89 in.)
Pallet 5
Gross weight (incl. pallet)
94 kg (207 lbs.)
Packing dimensions
80 x 120 x 180 cm (31 x 47 x 71 in.)
Pallet 6
Gross weight (incl. pallet)
108 kg (238 lbs.)
Packing dimensions
80 x 120 x 230 cm (31 x 47 x 91 in.)
Harmonized Tariff Code
84213925
Country of origin
the Netherlands

Order information

Article no.:
MDB-8/Diluter PRO (435)
0000118982
MDB-8/Diluter PRO (536)
0000119051
MDB-8/Diluter PRO (636)
0000119052

Features & Benefits

The effective RamAir™ filter cleaning system: individually cleaning of the filter cartridges by compressed air pulses
360° air inlet
Adjustable outlet nozzles
ControlPro control equipment: intelligent control panel + HMI with extensive feature package for fan/filter control; remote access via network
en

MDB-Diluter Product Data Sheet EN

Product data sheet
en

MDB-Diluter Brochure EN

Brochure
en

ControlPro Product Data Sheet EN

Product data sheet
en

ControlPro Connect Manual EN

Manual
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The MDB-Diluter is in accordance with the following directive:

  • CE
  • UL: On fan motor and frequency drive
  • RoHS: Directive 2011/65/EC

Doesn't fit your needs?

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SCS-Diluter

Diluter system

The SCS-Diluter is a stand-alone general filtration system, developed to reduce and control the background concentration of welding fumes in a workshop.

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