Honeywell 11255 Ms/Msg, Moisture/Oil Mist Separators, General, Application, Important Features

MS/MSG

Moisture/Oil Mist Separators

MS Models: MS-xxxxx

MSG Models: MSG-xxxxx

General

Flanders models MS and MSG Moisture Separators are designed for use in air handling sys- tems requiring collection of water droplets or oil mist. Water droplets in outside air are usually fog. In supply air, water droplets may occur as carry over from cooling coils and evaporative media or unevaporated moisture downstream of humidifiers. Oil mist in return air is most often found in produc- tion machine shops.

Application

The optimum face velocity for MS and MSG Moisture Separators is 500 fpm, and at this point they are 98% efficient on 20 micrometer liquid droplets. Performance is relatively unchanged in the recommended range of 450 fpm to 550 fpm. Above 550 fpm captured liquid may be re-entrained in the airstream.

The system designer must recognize that moisture separators will also act as low efficiency particulate prefilters and that the separator bank pressure drop will increase over time. System static pressure cal- culations for fan selection should include an allowance of at least 0.50 inch w.g. final static pres- sure for dirty wet moisture separators.

Models MS and MSG Moisture Sep r tors re meant to be installed with their pleats vertic l so that collected liquid will drain easily to the bottom of the frame and out through five 3/8” diameter holes. The top of the frame has an a ow to guide the installer as to the proper air flow di ection and posi- tion for proper drainage

Installation Considerations

In a mixed air (outside air/return air) system, place the Moisture Separators in he u side air duct if possible. Otherwise, place hem as he first filtra- tion stage ahead of the particula e fil ers.

Moisture Separators may be in talled in built-up banks using Flanders Type 9 Holding Frames or in Flanders Side Access Housings specially equipped with drain tubes. When built-up banks are used, field-fabricated water drain pans should be installed between each horizontal row of frames.

For banks four or five separators wide, locate 3/4” I.D. downspouts t e ch end. For banks six sepa- rators wide or wider, locate downspouts at each end and proportionately along the width of the bank, one for e ery six separators or a fraction

tereof. Example: a six separator wide bank would ave downspouts at both ends and one in the mid-

dle; an eig t separator wide bank would have downspouts at both ends and two more proportion- ately spaced along the width of the bank. If not indi-

viually trapped, the downspouts should be mani- fol ed to a 1” I.D. or larger collector with a trap of a depth exceeding the negative pressure expected in the plenum where the separator bank is located.

Sureseal two-stage Side Access Housings may be special-ordered with the 2” tracks fitted with drain tubes to hold both Moisture Separators and partic- ulate final filters. If the 2” tracks are to be used for 2” prefilters, a Surepleat single-stage Side Access Housing with drain tube should be selected and located upstream of the particulate filter housing.

Important Features

•Efficiency of 98% on 20 micrometer liquid droplets at 500 pm

•Corrosion-resistant construction

•Nominal 2” thick for application flexibility

•Mod ls for both built-up banks and side access housings

Flanders - Foremost in Air Filtration

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