Dortek GRP doors are available with the following frame options
Dortek produce double and single glazed internal windows with clear laminated safety glass to BS6206B:1981
Features include
- Stainless steel or powder coated steel frames.
- Frames manufactured to suit various wall constructions and thicknesses.
- Frames can be made flush with wall or a wrap around channel profile.
- Double glazed 40mm thick sealed units.
- Integral blinds available
Dortek have developed their existing range of fire or non fire rated, hinged and sliding, GRP doorsets to include various levels of X-ray protection. Manufactured to have an equal appearance to standard Dortek doors without lead protection, the built in colour is aesthetically pleasing and requires no maintenance.
Dortek leadline doorsets incorporate lead sheeting in a range of thicknesses and particular care is taken to ensure this protection extends through the door frames. As the lead is encapsulated during the moulding process, the door & frame are completely seamless, forming an effective barrier to radiation in all directions.
X-ray doors are available with or without flush mounted windows.
Why X-ray doors?
Lead lined X-ray doors are normally used in hospitals to shield people from the harmful effects of X-rays. They can also be found in dental surgeries and animal health clinics.
Like all other forms of ionising radiation, X-rays are harmful to our health. In sufficient doses they disrupt the cells of the body.
In medical use the harmful effects of the X-rays are out-weighted by the medical benefits.
Where are Lead lined Doors specified?
Within the hospital, lead lined doors will be used in the following:
1. X-ray room:
When the targeted X-ray beam hits the human body, a small amount of the beam is deflected by the body and scatters outwards, hitting the walls, floor, ceiling and door of the X-ray room.
It is this small amount of X-ray that we help to contain using our X-ray doors.
2. CT scan room;
The 3-D computer image of the body is built up by taking multiple X-rays at incremental steps. The image is then viewed on a computer screen.
Like the simple X-ray machine, the X-ray beams direction are known and easily absorbed. Some scatter still occurs and has to be contained.
3. Radio-therapy room;
The radio therapy room is used for the treatment of patients. Radio therapy is the use of X-rays and similar rays to treat disease. The X-rays are targeted at the treated area in short bursts over a number of days.
Lead lined doors are not suitable for MRI rooms. MRI does not use X-rays. Dortek do not produce products for this application.
What are the governing regulations?
‘The Ionising Radiations Regulations 1999’ The legislation sets out the doses that all workers (medical staff) can be exposed to during their working day. This ensures that every effort is made to keep the levels of X-ray used in hospitals to a minimum, thus making shielding easier.
‘The Ionising Radiation (Medical Exposure) Regulations 2000’ The controlling body for this requirement is the National Radiological Protection Board and guidance on the lead thickness necessary for specific situations should be sought from it. To have an X-ray machine in place, it must be registered with the authorities Radiation Protection Advisor (R.P.A), and they have overall responsibility for the safe operation of the X-ray machines on their site.
Specifications
Lead, having a high density is the material of choice for X-ray protection doors.
Leadline doorsets incorporate lead sheeting in a range of thickness and this protection extends through the door frames, forming an effective barrier to radiation in all directions. The appropriate lead thickness is specified by the Radiation Protection Advisor using the British Standard code number (e.g. BS Code 5 and BS Code 6, where Code 5 is lead of 5 lb/sq.ft and Code 6 is lead of 6 lb/sq.ft.
Whilst every attempt is made to make the X-ray door as impervious as possible to X-rays, some gaps will exist (under the door, the key hole in the lock etc). As we are only involved in containing scatter, this is acceptable.
Options available on Dortek doors
| Door Type | BS Code Lead (Thickness) | Fire Resistance | Door Weight (kg/m2) |
|---|---|---|---|
| Code 3 | 1.25mm | Yes | 14.63 |
| Code 4 | 1.80mm | Yes | 19.48 |
| Code 5 | 2.25mm | Yes | 24.41 |
| Code 6 | 2.70mm | Yes | 29.28 |
| Code 7 | 3.00mm | Yes | 34.18 |
| Code 8 | 3.40mm | Yes | 39.06 |
The door blade is moulded with the required lead sheet in it. This may add to our standard 40 mm thickness.
Ironmongery, hinges & door closers especially need to be considered with regard to the additional weight in a lead lined door.
Vision panels
As lead cannot be used in the vision panel, special x-ray glass which contains large quantities of lead oxide is used. The glass is specified in terms of ‘equivalent mm of lead’ or ‘Code 5 glass.
Tested and certified from F30 to F300 Dortek’s range of fire rated doors are tested and certified from F30 to F300.
Doors combine safety without compromising high standards of hygiene and usability.
Unique to Dortek, our patented concealed intumescent strip, built into the doors during the manufacturing process, maintains a smooth seamless profile, ensuring that there are no seams or ledges where dirt and germs can gather.
Constantly investing in new technology and testing, we ensure that Dortek doors remain at the forefront of door technology and fire safety.
For over 20 years Dortek’s doors have been used extensively throughout the UK and Ireland by all major retail chains.
Retail/ Food Retail sector requirements
- Strong and hard-wearing with a long trouble free life span
- High level of hygiene performance, easy to clean and resistant to cleaning materials. Moisture and water resistant.
- Aesthetically pleasing requiring minimum or no decoration or re-painting
- Meeting standards of hygiene and DDA legislative requirements
- Competitively priced
- Requiring minimum maintenance
Our Acoustic Rated Doors are supplied as an entire unit – door frame, door blade, hinges, automatic threshold seal (if applicable). Strong, durable construction. All doors are factory assembled and tested for correct alignment and fit.
Dortek manufacture and install a range of Acoustic Doors
- AK -Acoustic Hinged Non Fire Rated GRP doors – up to db30
- AF – Acoustic Hinged Fire Rate GRP doors – up to db35
- ASL Acoustic Hermetically Sealing Sliding Doors
- 40db
- 45db
- 50db
- ASLF – Acoustic Fire Rated Hermetically Sealing Sliding Doors
- 55db/60 minute fire rated (EN 1634)
Our Acoustic Rated Doors are supplied as an entire unit – door frame, door blade, hinges, automatic threshold seal (if applicable). Strong, Durable construction. All doors are factory assembled and tested for correct alignment and fit.
The figures in these tables represent the “average” decibel reduction from the noise source side of the doorset to the opposite, and apply to both hinge side to frame side and frame side to hinge side.
The following doorblades were tested in a GRP frame with a standard firtree seal in the doorstop and an automatic seal at the bottom of the door.
| Door type | Results achieved |
|---|---|
| Standard K Type GRP door | 25 decibel reduction |
| Lead lined K Type GRP door | 34 decibel reduction |
| Standard F Type GRP door | 29 decibel reduction |
| Lead lined F Type GRP door | 35 decibel reduction |
The following doorblades were tested in a STAINLESS STEEL frame with seals surface mounted onto the doorstop and an automatic seal at the bottom of the door.
| Door type | Results achieved |
|---|---|
| Standard K Type GRP door | 23 decibel reduction |
| Lead lined K Type GRP door | 30 decibel reduction |
| Standard F Type GRP door | 27 decibel reduction |
| Lead lined F Type GRP door | 32 decibel reduction |
As the doorset is tested through a range of frequencies from low to high, “average” is the figure across the full range of frequencies. Dependent on a particular frequency of noise, the decibel reduction capability of the doorset may be greater.
Applications where Dortek Acoustic Doors are used
Hinged GRP Acoustic Door
- Hospitals
- Laboratories
- Plant Rooms
Sliding Acoustic Doors
- Lecture Theatres
- Recording/Br Studios
- Conference Rooms
- Test Cells
Specifying Sound Reducing Doors
- In designing and specifying with sound reducing (acoustic) doors, it is important to consider the average db rating rather than the maximum db rating.
- For example a 45db door will have an average of 45db of sound reduction on several frequencies. The maximum db rating of the same door is probably closer to 55db at 4000Hz.
- In real life conditions there will always be “flanking”, which is room-to-room sound transmission caused by vibration. It always depends on a particular situation but allow up to 3db.
- Obviously, the db rating of the wall/panel construction should always be at least that of the door for the overall acoustic solution to be effective.
Hinged and sliding insulated doors finished in food safe white coated or standards for food preparation areas – EC/USDA stainless steel sheet for temperatures down to which meet the international.
They have robust construction with heavy duty rail system and furniture, fire resistance up to 1 Hour in accordance with the new European EN 1634-1: 2001 standards and can have manual or automatic operation with safe reliable electric drive units fully compliant to the latest standards.
Applications
Suitable for coldstores, food factories, dairies, kitchen / catering facilities, abattoirs
Options
- Various solutions for meat rail package
- Choice of RAL colours
- Mineral wool core
- Fire resistance up to 1 Hour
- Low voltage Heater Tape
Sliding Doors
Unique range of sliding doors for chiller and freezer applications 0°C to -40°C. available in two models and four options. The doorblades are constructed from series of interchangeable panels framed in heavy gauge stainless steel edge profiles.
A full range of fast acting roller doors for both internal and external applications. The door panel is manufactured from a tough multi-layer polyester UV stabilised and anti static treated.
The vertical guides incorporate seals to prevent draughts and the ingress of dust, insects and vermin. In case of impact the Brx breakout system allows the door panel to be released from the side guides minimising damage to panel
A patented spring balance system insures the panel will always be stretched tight resisting wind and over pressures and can be manually opened in case of emergency. Variable drive motors 240V or 415V for fast reliable operation. Stainless steel side and top covers are available for clean areas.
The doors can be used to save energy and create better working conditions where fast access is required e.g. heated or air condition buildings, to divide areas in manufacturing facilities to prevent cross contamination and maintain air pressures, reduce the sound of noisy plant and guard machinery.
Dortek Automation and Interlock systems are designed to provide safe, efficient and convenient means of opening and closing doors in a controlled environment. Our systems can be connected to many times of activation devices from basic push button to a fully integrated Building Management System.
Our products are available for supply and install either with doors we supply (as one package) or separately to fit to existing doors.
DORTEK Automation systems
- Over 30 years in house experience available – provide input and advice to end-users/ specifiers in optimising specification at building layout design stage
- Designed and assembled by Dortek at our factory
- Installed by our own engineers – no sub-contractors
- Installed at the same time as doors – one stop, seamless installation
- Fully guaranteed
- Service/ maintenance contracts are available
- ATEX certified
DORTEK Interlock Systems
- Can be applied to any number of doors from two doors (to form an air or light lock) to an entire building
- Doors can be hinged, sliding, roller, manual or automatic, or any combination.
- Interlocking can be either electrical or Pneumatic (for EX rated areas)
- Access by push button, keypads, swipe cards, sensors, keys or any combination of these.
- Interlocking can be
- Interlinked, Interlocked or Sequenced
- Locked or Unlocked (manual doors must be locked)
- Electrical, pneumatic or both
- Fully fail safe
Typical Interlock Matrix (3 door system)
| Door No | DO1 | DO3 | DO5 |
|---|---|---|---|
| - | Active | Active | Active |
| - | Open | Locked | Locked |
| - | Locked | Open | Locked |
| - | Locked | Locked | Open |
Today’s hospitals and medical centres have to comply with strict legislation and endure heavy usage with the minimum of maintenance. Dortek’s comprehensive range of door systems for operating theatres, X-ray rooms, sterile areas, mortuaries, and kitchens can be specified with confidence.
The doors are safe, reliable, robust, easy to clean and conform to all the latest BS, and NHS standards. Dortek through its team of experience project managers can advise on the correct specification to give many years of trouble free service.
Dortek GRP doors are manufactured from reinforced polyester and contain no organic material. GRP doors have pressure moulded smooth seamless construction which is easy to clean, does not harbour bacteria and is unaffected by water, steam and most chemicals/cleaning agents.
GRP doors are extremely strong and durable, yet light and easy to operate. The built-in colour of GRP doors is aesthetically pleasing and requires no maintenance.
Unlike timber or steel doors, GRP doors will not surface peel, warp, swell, rot or rust, even in the most arduous conditions.
Dortek GRP doors can be supplied as: Hinged, Double action, or single action, Sliding or bi-parting and Fire rated upto 4 Hours.
K Type Single Action Insulated Doorsets
Dortek GRP doors are manufactured from reinforced polyester and contain no organic material. The pressure…
K Type Double Action Insulated Doorsets
Dortek GRP doors are manufactured from reinforced polyester and contain no organic material. The pressure…
K Type Sliding Insulated Doorsets
Dortek GRP doors are manufactured from reinforced polyester and contain no organic material. The pressure…
F Type Single Action Fire Doors
Fire doors tested to B2 476 part 22 ranging from 30 to 240 minute fire…
F Type Double Action Fire Doors
Fire doors tested to B2 476 part 22 ranging from 30 to 240 minute fire…
F Type Sliding Fire Doors
Fire doors tested to BS 476 part 22 ranging from F30-F90, EN1634-1 fire resistant, tested…
R Type Swing GRP Doors
Hygienic Double Action Traffic Doorset. Safe, reliable, easy to operate, maintenance free doors. Conforming to…
MF5 Hermetically Sealed sliding door
The door panel is manufactured from a non-organic core faced with hard plastic laminate framed…
Fire rated MF5 Hermetically sealed sliding door
The door panel is manufactured from a non-organic core faced with hard plastic laminate framed…
MF5 Hermetically sealed sliding door, xray shielded
The door panel is manufactured from a non-organic core faced with hard plastic laminate framed…
DT 250 light to medium single leaf chiller and freezer doors (sliding)
Rail system type M7 hermetic with stainless steel hangers and nylon bearings
DT 400 heavy duty single/bi-parting chiller and single leaf freezer doors (sliding)
Rail system type M7 hermetic with stainless steel hangers and nylon bearings
DT 250 light to medium single leaf chiller and freezer doors (hinged)
Hinged chiller and freezer doors are available in custom made sizes for temperature range 0°…
Double and Single Glazed Internal Windows
Double or single glazed clear laminated safety glass to BS6206B:1981
Transfer Hatches
304 Grade Stainless Steel Transfer Hatch with glazed doors. Available as three standard sizes (non…
Stainless Steel
Dortek Stainless Steel frames are suitable for non fire rated and fire rated doors up…
MF5 Hermetically Sealed Glass sliding door
The door panel is manufactured from non-organic materials framed with flush aluminium profile. The combination…
DT Electric Sliding Door Operator
Automatic sliding door systems are often the focus of above average demands concerning functionality and…
DT Electric Swing Door Operator
When a door is too heavy to operate manually, an automatic swing door system is…
Cutting edge hydrogen peroxide dry vapour fumigation solution.
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