APSX-C Ceiling Mounted Air Pressure Stabilisers

• Only Supplier of ceiling mounted Air Pressure Stabilsers. 
• Unique blade release system for superior maintenance. 
• SteriTouch® antimicrobial protection as standard.
• Quiet day-to-day operation. 
• Top entry Plenum box supplied as standard.
• Low maintenance.

The patented VARI-centric® range of Ceiling Mounted Air Pressure Stabilisers are purpose-designed for clean environments, such as Operating Theatres, Isolation Rooms and Cleanrooms to control airborne contamination by controlling room pressure differentials. The VARI-centric® balancing system accurately controls the differential air pressure between adjacent rooms, and the blades close fully as soon as the pressure differential drops below the required level. This diverts the airflow to pass through an open door forcing back airborne contamination without the need to alter the air extract supply. Positive pressure of the Operating Theatres to protect them from the ingress of infectious agents passing through the open doors, by providing high air volume rates, is a well-established principle of hygiene and infection control, forming the fundamental principles on which Health Technical Memorandums HTM 03-01 & HTM 2025 are based.

Following the philosophy of HBN 4 Supplement 1: Isolation facilities in acute settings, Ceiling Air Pressure Stabilisers are utilised to control the pressure differential between the Corridor and Isolation room. Within Cleanrooms they are used to facilitate the cascade of air pressures to maintain a sterile environment where facilities are conforming to ISO 14664-1 and BS 5295.

Apreco VARI-centric® Ceiling Air Pressure Stabilisers and associated products are supplied as standard with SteriTouch® paint finish, utilising silver technology – which is already used extensively within the healthcare sector as an excellent anti-microbial protection in conjunction with good hygiene practices. SteriTouch® is extremely effective in helping to protect against harmful bacteria including MRSA, Ecoli, salmonella and C-diff

We are the only company who can offer ceiling mounted stabilsers

Operating Theatres

Operating TheatresThe VARI-centric® Ceiling Air Pressure Stabilisers are utilised to maintain the positive pressurisation of operating theatres and isolation rooms, to protect them from the ingress of infectious agents passing through open doors by providing high air volume flow rates is a well-established principle of hygiene and infection control.

Apreco have been acknowledged for their assistance in contributing to Health Technical Memorandum (HTM 03-01) which supercedes HTM 2025. They have also assisted with the validation of Isolation Room design following Health Building Notes (HBN 4 : Supplement 1).

Clean Rooms

Clean RoomsApreco’s leading VARI-centric® range of Ceiling Air Pressure Stabilisers are designed to maintain a sterile environment. Our range is utilised in the cleanrooms of pharmaceutical, healthcare and commercial companies for effective room differential pressure control.

All cleanroom areas should be either classified or non-classified. All classified areas should conform to an applicable standard. This standard is dependant upon geographic location and usage.

Isolation Rooms

Isolation RoomsWhen following the guidelines of HBN4 Supplement 1: Isolation facilites in acute settings the VARI-centric Ceiling Air Pressure Stabilisers are utilised to maintain the positive pressurisation lobby ensuring that air from the corridor does not enter the isolation room, and that air from the room does not escape into the corridor. This basic but effective design enables the suite to be used for both source and protective isolation without the need for switchable ventilation or special training for staff. Importantly it also provides safe isolation for those patients whose exact condition is unknown.

Metric Selection

The method below will give you an indication of the size of unit required for a given volume flow-rate at a given pressure.

Use Table A to calculate the total length of blade required, and the divide it into sections of equal length using values from Table B.

Example:
Selecting a Ceiling Air Pressure Stabiliser capable of transferring 310 l/s (0.31 m3/s) @ 5 Pa.

Stage 1:
310 x 7.35 = 2278.5 mm of total blade length.Where: 310 = Volume in l/s and 7.35 = Factor from Table A relating to 5 Pa.

Stage 2:
Divide the calculated total blade length into equal lengths using one of the standard blade lengths from Table B.

Consideration should be made regarding any physical restrictions that the building may impose before selecting the blade length for the unit.

Total calculated blade length of 2278.5 divided by 4 blades = 569.25 mm.

Rounded up to the nearest standard blade increment from Table B gives you 4 x 575 blades.

Table A (Factors)

Pa Factor Pa Factor Pa Factor
3 9.49 15 4.25 35 2.78
5 7.35 20 3.68 40 2.60
8 5.81 22 3.51 45 2.45
10 5.20 25 3.29 50 2.33
11 4.96 30 3.00
14 4.39 32 2.91

Table B (Blade Lengths in mm)

200 350 500 675
250 400 575 750
300 450 625

 

Imperial Selection

The method below will give you an indication of the size of unit required for a given volume flow-rate at a given pressure.

Use Table A to calculate the total length of blade required, and the divide it into sections of equal length using values from Table B.

Example:
Selecting a Ceiling Mounted Air Pressure Stabiliser capable of transferring 657cfm @ 0.020 in wc.

Stage 1:
657 x 0.137 = 90 inches of total blade length.Where: 657 = Volume in cfm and 0.137 = Factor from Table A relating to 0.020 in wc.

Stage 2:
Divide the calculated total blade length into equal lengths using one of the standard blade lengths from Table B.

Consideration should be made regarding any physical restrictions that the building may impose before selecting the blade length for the unit.

Total calculated blade length of 90 divided by 4 blades = 22.5in.

Rounded up to the nearest standard blade increment from Table B gives you 4 x 22.64in blades.

Table A (Factors)

in wc Factor in wc Factor in wc Factor
0.012 0.176 0.060 0.079 0.141 0.052
0.020 0.137 0.080 0.068 0.161 0.049
0.032 0.108 0.088 0.065 0.181  0.046
0.040 0.097 0.100 0.061 0.201 0.044
0.044 0.092 0.120 0.056
0.056 0.082 0.128 0.054

Table B (Blade Lengths in inches)

7.87 13.78 19.69 26.57
9.84 15.75 22.64 29.53
11.81 17.72 24.61
[accordion title="Metric Dimensions"]

 

Height single row Height each additional row Width single column
Nominal Size 123mm + 133mm per row Blade Length
Minimum Aperture 145mm + 133mm per row Blade length + 22mm
Maximum Size 203mm + 133mm per row Blade length + 80mm
[/accordion] [accordion title="Imperial Dimensions"]
Height single row Height each additional row Width single column
Nominal Size 4.84in + 5.24in per row Blade Length
Minimum Aperture 5.55in + 5.24in per row Blade length + 0.87in
Maximum Size 7.99in + 5.24in per row Blade length + 3.15in
[/accordion]

 

Please contact us for more infomation

Standard

APSX® Air Pressure Stabilisers

APSX®
  • Operating range: 1 to 50pa
  • Opening accuracy +/- 0.5pa
  • VARI-centric® balancing system
  • Fire rating: N/A
  • Finish: SteriTouch® RAL9010
  • Electrical Supply: N/A

Fire Rated

APSX®-FD Air Pressure Stabilisers

APSX®-FD
  • Operating range: 1 to 50pa
  • Opening accuracy +/- 0.5pa
  • VARI-centric® balancing system
  • Fire rating: 4 hour
  • Finish: SteriTouch® RAL9010
  • Electrical Supply: Not Required

Smoke/Fire Rated

APSX®-FSD Air Pressure Stabilisers

APSX®
-FSD
  • Operating range: 1 to 50pa
  • Opening accuracy +/- 0.5pa
  • VARI-centric® balancing system
  • Smoke/Fire Rating: 2 hour
  • Finish: SteriTouch® RAL9010
  • Electrical Supply: 24VDC/240VAC
Information
APSX-C Ceiling Mounted Air Pressure Stabilisers
• Unique blade release system for superior maintenance. 
• SteriTouch® antimicrobial protection as standard.
• Quiet day-to-day operation. 
• Low maintenance.

The patented VARI-centric® range of Ceiling Mounted Air Pressure Stabilisers are purpose-designed for clean environments, such as Operating Theatres, Isolation Rooms and Cleanrooms to control airborne contamination by controlling room pressure differentials. The VARI-centric® balancing system accurately controls the differential air pressure between adjacent rooms, and the blades close fully as soon as the pressure differential drops below the required level. This diverts the airflow to pass through an open door forcing back airborne contamination without the need to alter the air extract supply. Positive pressure of the Operating Theatres to protect them from the ingress of infectious agents passing through the open doors, by providing high air volume rates, is a well-established principle of hygiene and infection control, forming the fundamental principles on which Health Technical Memorandums HTM 03-01 & HTM 2025 are based.

Following the philosophy of HBN 4 Supplement 1: Isolation facilities in acute settings, Ceiling Mounted Air Pressure Stabilisers are utilised to control the pressure differential between the Corridor and Isolation room. Within Cleanrooms they are used to facilitate the cascade of air pressures to maintain a sterile environment where facilities are conforming to ISO 14664-1 and BS 5295.

Apreco VARI-centric® Ceiling Mounted Air Pressure Stabilisers and associated products are supplied as standard with SteriTouch® paint finish, utilising silver technology – which is already used extensively within the healthcare sector as an excellent anti-microbial protection in conjunction with good hygiene practices. SteriTouch® is extremely effective in helping to protect against harmful bacteria including MRSA, Ecoli, salmonella and C-diff

Our Ceiling Mounted APS® Air Pressure Stabilisers can be designed to meet your needs.

We also offer pre-designed solutions to cater for most needs, these include Ceiling and thin wall/door mounted units.

Application

Operating Theatres

Operating Theatres
The VARI-centric® Ceiling Mounted Air Pressure Stabilisers are utilised to maintain the positive pressurisation of operating theatres and isolation rooms, to protect them from the ingress of infectious agents passing through open doors by providing high air volume flow rates is a well-established principle of hygiene and infection control.

Apreco have been acknowledged for their assistance in contributing to Health Technical Memorandum (HTM 03-01) which supercedes HTM 2025. They have also assisted with the validation of Isolation Room design following Health Building Notes (HBN 4 : Supplement 1).

Clean Rooms

Clean Rooms
Apreco’s leading VARI-centric® range of Ceiling Mounted Air Pressure Stabilisers are designed to maintain a sterile environment. Our range is utilised in the cleanrooms of pharmaceutical, healthcare and commercial companies for effective room differential pressure control.

All cleanroom areas should be either classified or non-classified. All classified areas should conform to an applicable standard. This standard is dependant upon geographic location and usage.

Isolation Rooms

Isolation Rooms
When following the guidelines of HBN4 Supplement 1: Isolation facilites in acute settings the VARI-centric Ceiling Mounted Air Pressure Stabilisers are utilised to maintain the positive pressurisation lobby ensuring that air from the corridor does not enter the isolation room, and that air from the room does not escape into the corridor. This basic but effective design enables the suite to be used for both source and protective isolation without the need for switchable ventilation or special training for staff. Importantly it also provides safe isolation for those patients whose exact condition is unknown.

Unit Selection
Metric Selection

The method below will give you an indication of the size of unit required for a given volume flow-rate at a given pressure.

Use Table A to calculate the total length of blade required, and the divide it into sections of equal length using values from Table B.

Example:
Selecting a Ceiling Mounted Air Pressure Stabiliser capable of transferring 310 l/s (0.31 m3/s) @ 5 Pa.

Stage 1:
310 x 7.35 = 2278.5 mm of total blade length.Where: 310 = Volume in l/s and 7.35 = Factor from Table A relating to 5 Pa.

Stage 2:
Divide the calculated total blade length into equal lengths using one of the standard blade lengths from Table B.

Consideration should be made regarding any physical restrictions that the building may impose before selecting the blade length for the unit.

Total calculated blade length of 2278.5 divided by 4 blades = 569.25 mm.

Rounded up to the nearest standard blade increment from Table B gives you 4 x 575 blades.

Table A (Factors)

Pa Factor Pa Factor Pa Factor
3 9.49 15 4.25 35 2.78
5 7.35 20 3.68 40 2.60
8 5.81 22 3.51 45 2.45
10 5.20 25 3.29 50 2.33
11 4.96 30 3.00
14 4.39 32 2.91

Table B (Blade Lengths in mm)

200 350 500 675
250 400 575 750
300 450 625

 

Imperial Selection

The method below will give you an indication of the size of unit required for a given volume flow-rate at a given pressure.

Use Table A to calculate the total length of blade required, and the divide it into sections of equal length using values from Table B.

Example:
Selecting a Ceiling Mounted Air Pressure Stabiliser capable of transferring 657cfm @ 0.020 in wc.

Stage 1:
657 x 0.137 = 90 inches of total blade length.Where: 657 = Volume in cfm and 0.137 = Factor from Table A relating to 0.020 in wc.

Stage 2:
Divide the calculated total blade length into equal lengths using one of the standard blade lengths from Table B.

Consideration should be made regarding any physical restrictions that the building may impose before selecting the blade length for the unit.

Total calculated blade length of 90 divided by 4 blades = 22.5in.

Rounded up to the nearest standard blade increment from Table B gives you 4 x 22.64in blades.

Table A (Factors)

in wc Factor in wc Factor in wc Factor
0.012 0.176 0.060 0.079 0.141 0.052
0.020 0.137 0.080 0.068 0.161 0.049
0.032 0.108 0.088 0.065  0.181 0.046
0.040 0.097 0.100 0.061 0.201  0.044
0.044 0.092 0.120 0.056
0.056 0.082 0.128 0.054

Table B (Blade Lengths in inches)

7.87 13.78 19.69 26.57
9.84 15.75 22.64 29.53
11.81 17.72 24.61
Dimensions
[toggle title=”APSX®C – Ceiling Mount Option”]

Metric Dimensions

Height single row Height each additional row Width single column
Nominal Size 123mm + 133mm per row Blade Length
Minimum Aperture 145mm + 133mm per row Blade length + 22mm
Maximum Size 203mm + 133mm per row Blade length + 80mm

 

Imperial Dimensions

Height single row Height each additional row Width single column
Nominal Size 4.84in + 5.24in per row Blade Length
Minimum Aperture 5.71in + 5.24in per row Blade length + 0.87in
Maximum Size 7.99in + 5.24in per row Blade length + 3.15in
[/toggle]
Accessories
Please contact us for further infomation
Alternatives

Standard

APSX® Air Pressure Stabilisers

APSX®
  • Operating range: 1 to 50pa
  • Opening accuracy +/- 0.5pa
  • VARI-centric® balancing system
  • Fire rating: N/A
  • Finish: SteriTouch® RAL9010
  • Electrical Supply: N/A

Fire Rated

APSX®-FD Air Pressure Stabilisers

APSX®-FD
  • Operating range: 1 to 50pa
  • Opening accuracy +/- 0.5pa
  • VARI-centric® balancing system
  • Fire rating: 4 hour
  • Finish: SteriTouch® RAL9010
  • Electrical Supply: Not Required

Smoke/Fire Rated

APSX®-FSD Air Pressure Stabilisers

APSX®
-FSD
  • Operating range: 1 to 50pa
  • Opening accuracy +/- 0.5pa
  • VARI-centric® balancing system
  • Smoke/Fire Rating: 2 hour
  • Finish: SteriTouch® RAL9010
  • Electrical Supply: 24VDC/240VAC