VHT - Halton Vita, HEPA diffuser

Halton Vita VHT, HEPA diffuser

Halton Vita VHT is a diffuser that is dedicated for hospitals and cleanrooms. It is suitable to install flush with the ceiling or the wall. Air is supplied through adjustable nozzles.

The diffuser is also available with a fully-perforated front plate for vertical air supply or exhaust. The diffuser is designed to be equipped with HEPA filter with foamed polyurethane (PUR) gasket.

Halton Vita VHT is available in three sizes with two different types of duct connection.

Halton Vita VHT is a diffuser that is dedicated for hospitals and cleanrooms. It is suitable to install flush with the ceiling or the wall. Air is supplied through adjustable nozzles.

The diffuser is also available with a fully-perforated front plate for vertical air supply or exhaust. The diffuser is designed to be equipped with HEPA filter with foamed polyurethane (PUR) gasket.

Halton Vita VHT is available in three sizes with two different types of duct connection.

Applications

  • Cleanrooms in hospitals and laboratories
  • Suitable for supply and exhaust ventilation
  • Can be installed flush with the ceiling or wall

Key features

  • Radial, swirl or low turbulent flow pattern
  • Air supply through adjustable nozzles or perforated front panel
  • Lockable nozzles that allow easy cleaning without changing the nozzles setting
  • E10, H13 and H14 class standard and high airflow HEPA filters available
  • Antibacterial epoxy-polyester powder paint finishing to prevent microbial growth
  • Easy filter change through the front panel
  • Test probe for measuring the filter pressure loss
  • Test probe for measuring particle concentration above the filter
  • Pressure difference transmitter to inform the user when to change the filter (optional).

Diffuser with HEPA filter for cleanroom application. Creates radial, swirl or low turbulent airflow pattern. Suitable for supply and exhaust ventilation. Possible to install flush to the ceiling or the wall.

Construction

  • Air supply through adjustable nozzles or perforated front panel
  • Lockable nozzles that ensure that nozzles setting is not changed during cleaning
  • A smooth internal surface that enables easy cleaning
  • Easy filter change through the front panel
  • Test probe for measuring the filter pressure loss

Material

  • Galvannealed steel casing
  • Antibacterial epoxy-polyester powder paint finishing to prevent microbial growth

Accessories

  • A HEPA filter with aluminium frame and PUR gasket according to EN 1822  with individual test certificate
  • Test probe for measuring particle concentration above the filter
  • Pressure difference transmitter to inform the user when to change the filter (optional).

Halton Vita VHT

HEPA diffuser

Halton Vita VHT is a diffuser that is dedicated for hospitals and cleanrooms. It is suitable to install flush with the ceiling or the wall. Air is supplied through adjustable nozzles.

The diffuser is also available with a fully-perforated front plate for vertical air supply or exhaust. The diffuser is designed to be equipped with HEPA filter with foamed polyurethane (PUR) gasket.

Halton Vita VHT is available in three sizes with two different types of duct connection.

Applications

  • Cleanrooms in hospitals and laboratories
  • Suitable for supply and exhaust ventilation
  • Can be installed flush with the ceiling or wall

Key features

  • Radial, swirl or low turbulent flow pattern
  • Air supply through adjustable nozzles or perforated front panel
  • Lockable nozzles that allow easy cleaning without changing the nozzles setting
  • E10, H13 and H14 class standard and high airflow HEPA filters available
  • Antimicrobial epoxy-polyester powder paint finishing to prevent microbial growth
  • Easy filter change through the front panel
  • Test probe for measuring the filter pressure loss
  • Test probe for measuring particle concentration above the filter
  • Pressure difference transmitter to inform the user when to change the filter (optional).

Product Models

The Halton Vita VHT HEPA diffuser is available in two models.

The models differ in the front panel type. The available options are:

  • Front panel with nozzles (for air supply)
  • Perforated front panel (for air supply and exhaust)

NOTE: The diffuser can be delivered with or without the front panel. Delivering the front panel later is recommended in case of a lengthy break between diffuser's installation and commissioning.

Other options include:

  • HEPA filter class: H14, H13, E10
  • HEPA filter depth: 68, 90, 110 (H14) mm
  • Three size options
  • Duct connection location: top or side
  • Duct connection size

Structure and material

 No.  Part  Material  Colour alternatives
1  Duct seal gasket  Rubber  
2  Test probes  PVC hoses  
3  Filter  Fibreglass paper, aluminium frame and PUR gasket  
4  Nozzles  Polyacetal (POM)  White, grey, black
5  Casing  Galvannealed steel with antimicrobial epoxy polyester powder paint, white (RAL 9010) finishing  Special colours available on request
6  Filter brackets  Acid proof steel  
7  Front panel  Galvannealed steel with antimicrobial epoxy polyester powder paint, white (RAL 9010) finishing  Special colours available on request
8  Filter springs  Stainless steel  
9  Pressure measurement ports  Polyurethane  

Dimensions

Halton Vita VHT is available in three sizes (600 x 300, 600 x 600, 1200 x 600). The possibilities of duct connection type and size are listed in the tables.

Halton Vita VHT 600 x 300


Halton Vita VHT with top circular duct connection

Halton Vita VHT with side circular duct connection


Halton Vita VHT with side rectangular duct connection

Duct connection location

ØD

W

H

H1

H2

F Weight (kg)
Top 159 - - 282 - 268 7.3
Side 159 - - 432 280 418 9.0
Side 199 - - 432 270 418 9.0
Side - 298 98 327 222 313 8.0

 Halton Vita VHT 600 x 600


Halton Vita VHT with top circular duct connection


Halton Vita VHT with side circular duct connection


Halton Vita VHT with side rectangular duct connection

Duct connection location

ØD

W

H

H1

H2

F Weight (kg)
Top 249 - - 282 - 268 11.1
Top 314 - - 282 - 268 11.0
Side 249 - - 477 297 463 14.2
Side 314 - - 542 330 528 15.2
Side - 398 98 327 222 313 12.1
Side - 398 148 327 247 363 12.8

Halton Vita VHT 1200 x 600


Halton Vita VHT with top circular duct connection


Halton Vita VHT with side circular duct connection


Halton Vita VHT with side rectangular duct connection

Duct connection location

ØD

W

H

H1

H2

F Weight (kg)
Top 314 - - 327 - 313 21.4
Top 399 - - 327 - 313 21.2
Side 314 - - 542 330 528 22.8
Side 399 - - 627 372 613 28.9
Side - 398 148 377 247 363 23.0
Side - 598 198 427 272 413 24.1

Function

Halton HEPA diffuser can be used both to supply and exhaust air.

The diffuser supplies the filtered air into the space. Adjustable nozzles allow creating the desired airflow pattern. Nozzles can be adjusted in 15 degrees intervals.

In case of exhaust application, the air is exhausted through the diffusers perforated front panel.

Installation

The installation of Halton Vita HEPA diffuser is performed by the ventilation contractor.

The diffuser is connected to the duct by screwing or by riveting. The duct connection spigot is equipped with a seal gasket. The diffuser can be installed:

  • Flush with the ceiling (hung from the ceiling with M6 drop rods using fixing brackets)
  • Flush with the wall

CAUTION!

Do not drill any holes into the casing. If the casing has been damaged, unfiltered air may leak.

NOTE: Step-by-step instructions on how to install the diffuser can be found in the Halton Vita HEPA diffuser Installation, commissioning and maintenance guide. To download the guide go to the "Downloads" section.

Adjustment

The nozzles are pre-set in the factory to four directions.

To create the desired airflow pattern adjust the nozzles manually on site. Nozzles can be adjusted in 15 degrees intervals.

NOTE: Step-by-step instructions on how to adjust the nozzles can be found in the Halton Vita HEPA diffuser Installation, commissioning and maintenance guide. To download the guide go to the "Downloads" section.

Servicing

The required servicing tasks include filter change and cleaning the diffuser.

To ensure that air quality meets the requirements check the HEPA filter in short time intervals and replace the filter when necessary. The servicing frequency of a filter depends on the air cleanliness of the supply air and room air. Replace the filter immediately if:

  • the final differential pressure has been reached
  • the filter is damaged
  • micro-organisms, fungal spores, or odours are present in the filter

Clean the diffuser with disinfectants. The front panel can be detached and cleaned in the pre autoclave washing machine (<95°C). Lockable nozzles, that ensure that nozzles setting is not changed during cleaning.

NOTE: Step-by-step instructions on how to perform servicing can be found in the Halton Vita HEPA diffuser Installation, commissioning and maintenance guide. To download the guide go to the "Downloads" section.

Filters

Description

High efficiency particulate air (HEPA) filters are widely applied in cleanrooms where high air quality standards are essential.

Technical data of HEPA filters

Filters compatible with Halton Vita VHT diffuser are available in classes E10, H13 and H14 (European Standard EN 1822-1:2009) for standard and high airflow. The available filter depths are: with different depths: 68, 90, 110 (H14) mm. All filters have a polyurethane (PUR) foam gasket.

Operating range:

  • Temperature max. 70 °C
  • Humidity max. 90 %
  • Final pressure drop max. 500 Pa 
Dimensions WxHxD (mm)  Filter class Weight (kg)  Order code Diffuser size
225x525x68 H14, H13, E10 2.5 AF-H14/H13/E10-AL-225*525*68-PUR 300x300
225x525x90 H14, H13, E10 2.8 AF-H14/H13/E10-AL-225*525*90-PUR 300x300
225x525x110 H14 2.9 AF-H14-AL-225*525*110-PUR 300x300
525x525x68 H14, H13, E10 3.1 AF-H14/H13/E10-AL-525*525*68-PUR 600x600
525x525x90 H14, H13, E10 3.3 AF-H14/H13/E10-AL-525*525*90-PUR 600x600
525x525x110 H14 3.1 AF-H14-AL-525*525*110-PUR 600x600
1125x525x68 H14, H13, E10 9.5 AF-H14/H13/E10-AL-1125*525*68-PUR 1200x600
1125x525x90 H14, H13, E10 9.7 AF-H14/H13/E10-AL-1125*525*90-PUR 1200x600
1125x525x110 H14 9.9 AF-H14-AL-1125*525*110-PUR 1200x600

To get the right performance data (dpt and Lp(A)) to diagrams and CAD export files, select:

  • desired duct connection location and size,
  • filter class and depth 

under the Accessories tab.

Filter class / Filter depth Filter selection code
H14 / 68 mm A1
H14 / 90 mm A2
H14 / 110 mm A3
H13 / 68 mm B1
H13 / 90 mm B2
E10 / 68 mm C1
E10 / 90 mm C2

Specification

Diffuser with HEPA filter for cleanroom application. Creates radial, swirl or low turbulent airflow pattern. Suitable for supply and exhaust ventilation. Possible to install flush to the ceiling or the wall.

Construction

  • Air supply through adjustable nozzles or perforated front panel
  • Lockable nozzles that ensure that nozzles setting is not changed during cleaning
  • A smooth internal surface that enables easy cleaning
  • Easy filter change through the front panel
  • Test probe for measuring the filter pressure loss

Material

  • Galvannealed steel casing
  • Antibacterial epoxy-polyester powder paint finishing to prevent microbial growth

Accessories

  • A HEPA filter with aluminium frame and PUR gasket according to EN 1822  with individual test certificate
  • Test probe for measuring particle concentration above the filter
  • Pressure difference transmitter to inform the user when to change the filter (optional).

Order code

VHT/M-A-FP; C-D-MA-CO-IO-DF-FA-PT-ZT

M = Model of diffuser
       
S          Supply
        E          Exhaust

A =  Size of diffuser
       
300       600x300
        600       600x600
        1200    1200x600

FP = Front panel
         
NO      Nozzle
          PE       Perforated
 

Other options and accessories

C  = Location of duct connection
       
S           Side
        T           Top

D  =  Size of duct connection
    
     Circular
          A          160
          B          200
          C          250
          D          315
          E          400

         Rectangular        
        
F          300x100
         G         400x100
         H         400x150
         I           600x200

MA = Material
         
GE        Galvanaeled steel

CO = Colour
          
SA        Signal White (antibacterial, RAL 9003)
           SW       Signal White (RAL 9003)
           X          Special colour (RAL xxxx)

IO = Installation options for ceiling types
         
NA         Not assigned

DF = Diffuser delivered with front panel
         
Y            Yes
          N            No

FA = Front panel attached to unit
         
Y            Yes
          N            No

FT  =  Filtering type/bracket height (filter to be ordered separatly)
          A2          H14/90 mm
          A1          H14/68 mm
          A3          H14/100 mm
          B1          H13/68 mm
          B2          H13/90 mm  
      
   C1          E10/68 mm
          C2          E10/90 mm

PT = Differential pressure transmitter
         
NA         Not assigned
          P1          HDP-PE

ZT  = Tailored product
         N            No   (standard)
         Y            Yes  (ETO)
 

Code example

          VHT/S-600-NO;C=S,D=G, MA=GE,CO=SW, IO=NA,
          DF=Y,FA=Y,PT=NA, ZT=N

-----------------

Sub products

FP, Front panel for Halton Vita diffuser

P = Product
       VHH      VHH
       VHT      VHT
       VSN      VSN

M = Model
       S           Supply
       E           Exhaust
       W          With pins
       O           Without pins
       NA         Not assigned

A = Size of diffuser
       300         600x300
       600         600x600
      1200        1200x600
 

Other options and accessories

FP = Front panel
         
NO         Nozzle
          PE         Perforated

MA = Material
         
GE        Galvanaed steel

CO = Colour
          
SA        Signal White (antibacterial, RAL 9003)
           SW       Signal White (RAL 9003)
           X          Special colour (RAL xxxx)

Code example

          FP/VHT-S-600;FP=NO,MA=GE,CO=SW
 

Downloads & Media

Installation, Commissioning and Maintenance Guide - Halton Vita VHT
Type
Manual
Language
English (United Kingdom)
Size
2.9 MB
Halton_VHT_-_fr.pdf
Type
Datasheet
Language
French (France)
Size
1.3 MB

References

Hyvinkää Hospital

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Hyvinkää, Finland 2018

Hyvinkää Hospital is an emergency maternity hospital that offers services in almost all medical specialities. The hospital has a joint emergency service, which provides the Hyvinkää City Health Center emergency service 24 hours a day and a night emergency service for other municipalities in the area. The hospital operates as a teaching hospital. Halton delivered HEPA diffusers for operating rooms in the hospital.