DSH – Highly Efficient Droplet Separator

Overview

• High droplet and moisture separation efficiency
  • Class A results (EN 13030:2001)
  • Minimum pressure drop
• Performance tested according to EN 13030:2001 test for louvres subjected to simulated rain, at the independent laboratory
• Independent droplet removal efficiency testing carried out for single-stage, two-stage and three-stage configurations
• Tailored sizes and designs, such as modular construction, according to customer’s needs
• For wall and duct installations
• Two and three-stage units will include a coalescing and particulate filter. Normally these are an ISO Coarse 70% panel filter or ePM2,5 65% bag filter.
• The option of a mask louvre (ML) is available to architecturally disguise the vertical vane sections
• A possibility to connect with Halton Marine fire or shut-off dampers resulting in saving of the space
• Easy installation and commissioning. No special maintenance required.

Specification

Halton’s DSH high efficiency droplet separators are designed for demanding applications such as marine, oil & gas, chemical, energy industries, where reliability, easy installation and special design play an important role. Droplet separators operate on the principle of inertial vane separation and are designed to restrict the penetration of moisture, salt spray, rainwater and airborne aerosol particles into HVAC systems, engine room intakes, machinery spaces, and diesel and gas turbine engine air intakes.

Three configurations are commonly used according to the level of droplet removal efficiency required, single stage, two stage, and three stage, but special configurations are available. Two and three stage units will include a coalescing and particulate filter. Halton is able to assist in the design and selection of the droplet separator according to the application with special consideration to the pressure drop, velocity, wind speed and direction, turbulence, and drainage.

Dimensions

DSH general drawings

Please note that flanges in accordance with Norsok / ISO15138 are available as an option.

Special flange configurations available on request.

Dimensions table

DSH = droplet separator
DSH+ML = droplet separator + mask louvre
DSH+panel filter = droplet separator + ISO Coarse 70% panel filter
DSH+panel filter+ML = droplet separator + ISO Coarse 70% panel filter with depth 360mm + mask louvre
DSH+bag filter = droplet separator + ePM2,5 65% bag filter with depth of  300 mm
DSH+ML+bag filter = droplet separator + mask louvre + ePM2,5 65% bag filter with depth of 360 mm
Net available as an option.

Material thickness

Standard frame thickness of 2 mm. 3 mm available as an option.

DSH face area dimensions

DSH single unit

DSH module unit (width)

DSH module unit (height)

For example wall installation DSH
Size: width 600 mm, height 600 mm
= face area: width 586 mm, height 470 mm

General construction

• The single-stage unit comprises DSH vane section only, vane pitch can be 28mm, 23mm or 18mm
• Two-stage units comprise DSH+panel filter or DSH+bag filter
• Three-stage units comprise DSH+panel filter+DSH or DSH+bag filter+DSH
• Special configurations are available
• Mask Louvre (ML) and mesh (ME) are available as an option
• The mesh (ME) prevents objects from entering the air intake system
• The mask louvre (ML) is available to architecturally disguise the vertical vane sections
• Access to filter for removal and maintenance is LH (left hand) or RH (right hand) as standard

Material and Finishing

*) C3 durability of 7-15 years. C5-M with the durability of 15-25 years durability, available as an option.

Drainage

Single-stage units are supplied with front drain holes or with drainage pipes. Two and three-stage units are normally supplied with a EN 1.4404 manometric drain trap to prevent unfiltered air by-passing the droplet separator.

Drain locations

Drain pipe sizes

Standard size is 3/4 “. 1/2″ and 1” are available as  an option. Thread type BSPT (male).

Optional features

Service hatch (SH)

Enables easy access to the filter from the side of the unit. Hatch can be placed to the left side (HL) or the right side (HR) of the DSH. (ISO Coarse 70% panel filter in the picture).

Iso Coarse 70% panel filter

Panel filters are manufactured of progressive thermally smoothened synthetic polyester having high dust holding capacity and constancy for humidity. The filters are used in general ventilation system for air purification.

ePM10 70%, ePM2,5 65% and ePM1 50% bag filters

The materials of the synthetic fine filters are high-quality and durable, progressive mounted synthetic fibres. The filters can be used in example for air purification of intake air.

ATEX approved filters

Halton Marine also offers ATEX approved filters for droplet separators.

Installation in conjunction with a damper

Halton droplet separator can be connected to a Halton Marine fire damper with or without a connection piece. In both cases the construction is modified to fit the damper. Connecting DSH together with a damper must be mentioned when ordering products. Special flanges and drilling patterns are available for all models on request. The structural flexibility of dampers and high-quality combined with a wide range of accessories (including ex-actuators) and special steels, enable Halton Marine to offer tailored solutions for its customers. Combining Halton Marine droplet separator to damper offers customers a compact solution for air intake that also saves space. The products are recommended to be connected together at Halton Marine factory.

Weathertight hatch

Weathertight hatch is used e.g. to shut down the intake close to the waterline in the event of rough seas.

Efficiency Results

Three stage droplet separator with ISO Coarse 70% panel filter

Three stage droplet separator with ePM2,5 65% bag filter

Single stage DSH, pitch spacing 18 mm

Single stage DSH, pitch spacing 23 mm

Single stage DSH, pitch spacing 28mm

Two stage DSH with ePM2,5 65% bag filter

Two stage DSH with ISO Coarse 70% panel filter (filter depth 48 mm)

Effectiveness

Performance data

Effectiveness for removal of simulated rain
EN 13030:2001
Rainfall rate: 75 (l/h/m2), (75 mm/h)
Vertical installation

Weights

Weights of DSH including frame, aluminium (kg), pitch spacing 28 mm

The weights on the table are indicative and do not include the filter.

Weights of DSH including frame, aluminium (kg), pitch spacing 23 mm

The weights on the table are indicative and do not include the filter.

Weights of DSH including frame, aluminium (kg), pitch spacing 18 mm

The weights on the table are indicative and do not include the filter.

Weights of DSH+ML including frame, aluminium (kg), pitch spacing 28 mm

The weights on the table are indicative and do not include the filter.

Weights of DSH+ML including frame, aluminium (kg), pitch spacing 23 mm

The weights on the table are indicative and do not include the filter.

Weights of DSH+ML including frame, aluminium (kg), pitch spacing 18 mm

The weights on the table are indicative and do not include the filter.

Note!

Weight tables of DSH and DSH with a mask louvre (ML) in stainless steel with pitch spacing of 18, 23 and 28 mm are available in the datasheet.

Product Code

(S)=Model
(A) One stage
(B) Two stages with ISO Coarse 70% panel filter

(W)=Width
200…1500 (1mm step)

(H)=Height
200…1500 (1mm step)
200…1200 (one stage model)

(MA)=Material
(AS) Stainless steel (EN 1.4404)
(AL) Aluminium (Default paint RAL9010)

(FT)=Frame Type
(S) Standard
(D) Duct installation

(ML)=Mask Louver
(N) No
(Y) Yes

(PS)=Profile Spacing
(A) 28mm
(B) 23mm
(C) 18mm

(WA)=Water Drainage
(A) Front
(B) Bottom

(SH)=Service Hatch
(NA) No hatch
(HL) Hatch on left
(HR) Hatch on right

(AC)=Accessories
(ME) Mesh
(MD) Manometric drain trap
(PG) Differential pressure gauge

Code example
DSH/A-1000-1000,MA=AS,FT=S,ML=N,PS=A,WA=A,SH=NA,ZT=N,AC=ME,PG