"All canopies and ductwork are designed in-house and manufactured by our own team of skilled fabricators in our own workshop, using the latest machinery and techniques."  

John Cheeseman
Nationwide Ventilation


Services Distribution Units
A stainless steel Services Distribution Unit is the hygienic, convenient and flexible way of providing the cooking appliances with the gas, electric and water services they require. Whether the cooking suite is wall or island mounted, all the services are housed within an attractive pre-engineered unit. Ugly exposed pipework, electrical trunking, surface mounted boxes - the many unsightly kitchen dirt traps are neatly packaged into an easy to maintain stainless steel housing.

For safety reasons, mechanical and electrical services are segregated, but are easily accessible behind removable panels. Within the Unit, services can be easily relocated or expanded in the event of relocation or revision of appliances. There is single point connection for all services, and controls, MCB Board and isolation valves are hidden but easily accessed.

Lighting levels at the worksurface below the canopies should be a
minimum of 500 lux. Canopies can be supplied with lighting pre-fitted.
Fluorescent: recessed vapour proof twin fittings installed within the canopy roof are recommended.
Fluorescent: surface mounted vapour proof twin fittings housed in a stainless steel enclosure can beprovided where the ceiling height prevents lights from being recessed.
Incandescent: surface mounted vapour proof fittings can be fitted as an option to either of the above.
Feature: lighting such as recessed spot lights can be fitted if required.

Side Access Pre-Filter Housing
Nationwide Ventilation side access pre-filter housings are manufactured from 20g galvanised sheet steel, with standard 120L MEZ at each end for simple installation into standard ductwork runs. One side has a removable access door, with either screwed fixings or cam catches for easy access to the pre-filter for changing. On three internal sides there are filter-retaining channels to slide the filter into, and prevent movement when in operation. The channels are foam sealed on the back and on the door to eliminate air by-pass round the filters.

The pre-filter housings can be manufactured to accommodate any thickness of pre-filter, bag filter or multiple numbers of filters. When fitted with pleated panel filters, grade G4 of EN779 (Medium efficiency disposable filters), the pre-filter housings are suitable for use in ventilation/air conditioning systems which require a higher efficiency and greater dust holding capacity. They can also be used in the food industry and hospitals where glass panels are undesirable. They are also suitable for use as pre-filtration to carbon filter units.

Standard Available Sizes

  • 300mm X 300mm Nominal
  • 350mm X 350mm Nominal
  • 400mm X 400mm Nominal
  • 450mm X 450mm Nominal
  • 500mm X 500mm Nominal
  • 550mm X 550mm Nominal
  • 600mm X 600mm Nominal
  • 650mm X 650mm Nominal
  • 700mm X 700mm Nominal

Non-standard sizes available on request to suit your requirements. To use in spiral ductwork, circular spigot adaptor faceplates can be fitted for connection. For further information or pricing please contact a member of staff.

Louvres and Air Diffusers
Nationwide Ventilation supply all types of louvres and air diffusers, most louvres are made from aluminium with standard silver anodised finish, but can be powder coated to match any colour required by the customers. Most grilles can also be supplied with opposed blade dampers if required. The grilles and louvre ranges are:

  • Fixed blade weather louvres
  • 4-way ceiling diffusers
  • Egg crate grilles
  • Multiway eyelash grilles
  • Air stream operated louvres
  • Double deflection grilles
  • Linear grilles
  • Punka louvres
  • Non vision air transfer grilles
  • Circular ceiling diffusers

All louvres and grilles come in a range of sizes or can be purpose made to your requirement.

    External to the canopy/ventilated ceiling we offer an equally extensive product range. Stainless steel wall cladding and Services Distribution Units housing the mechanical and electrical supplies to the cooking appliances are an integral part of our range. In compliance with BS6173 we offer a range of gas interlock control panels, which can incorporate the fan controls if required. Ansul fire suppression systems can be incorporated into any canopy or ceiling.  

"Nationwide Ventilation are now a major supplier of ST/ST baffle filters at a COMPETITIVE PRICE!"

Stainless Steel Baffle Filters Price and Specification.

Application -
Extraction canopies in commercial catering and food preparation establishments.

Construction -
Outer Frame: Rolled stainless steel section with safety edge. Drain holes punched in lower edge.
Baffle Plates: Rolled stainless steel section with safety edge, 90 degree legs.

Handle: Fold down bale type.
Initial Resistance: 60 Pa @ 1.5m/second – 110 Pa @ 2m/second.

Nominal Size Inches Actual Size mm Flow Rating m3/s
10 x 20 x 2 241 x 495 x 48 0.238
16 x 20 x 2 394 x 495 x 48 0.39
16 x 16 x 2 394 x 394 x 48 0.29
20 x 16 x 2 495 x 394 x 48 0.39
20 x 20 x 2 495 x 495 x 48 0.49
18 x 18 x 2 445 x 445 x 48 0.396

Non-standard sizes available on request to suit your requirements. For further information or pricing please contact a member of staff on the above telephone number to discuss your requirements.

Nationwide Ventilation supply all types of filters, most of which are held in standard stock size. But any size can be made to suit the customer’s requirements. The filter ranges are:

  • Stainless steel grease baffle filters
  • Aluminium mesh grease filters
  • Disposable pleated panel filters
  • Active carbon panel filters
  • Multi pocket general purpose bag filter
  • HEPA filters



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