34-Intumescent_and_smoke_grilles

Intumescent Fire And Smoke Grilles

Automated, intumescent-lined shutter grille which can be connected to fire alarm systems. (PRODUCT 34)

REF: PRODUCT 34
Category:

Share on:

  • Description
  • APPLICATION INSTRUCTIONS
  • DOWNLOADS
  • ORDER REFERENCES

Product Description

Want create site? Find Free WordPress Themes and plugins.

Regulations Often require fire and smoke protection grilles for openings in walls, ceilings, fire doors or at the entry point of ventilation ducting. The Envirograf® NTJ grilles fulfil this requirement. offering full fire and smoke protection.

THERE ARE 4 MAIN OPTIONS TO THESE GRILLES: –

MANUAL RESET: This type is reset by pushing the internal plate back to its original position by means of pen or screwdriver. The plate is held open by an electro-magnet 24V 125mA.

AUTOMATIC RESET: This type resets itself and has a permanent loading of 24V 125mA, with the solenoid to open the grille taking 24V 8A for 1 second.

THERMAL BREAK: This type closes when the fire gets near the grille. At 55°C, a thermal link breaks and closes the shutter.

MEMORY SPRING: This type closes when the fire gets near the grille. At 50°C to 65°C, the grille will close, but the spring returns to the open position after the fire is over.

The grilles are supplied to be open normally and close up in a fire. However, all of these grille types can be made to be closed normally and to open in the event of a fire.

Manual Reset and Automatic Reset grille options can be wired to a 24V alarm system. Alternatively, an Envirograf® mains to 24V control unit can be used to control up to 8 manual reset grilles or 3 automatic reset grilles. The control units have N O (normally open) and N C (normally closed) contacts to wire to the existing fire alarm or optional smoke detector.

PLEASE STATE CLEARLY WHICH OPTIONS ARE REQUIRED WHEN ORDERING

 

ADVANTAGES

  • Provides up to 73 minutes integrity- Can be wired into an existing 24V fire/smoke alarm system, or into an Envirograf® AC mains to 24V control unit. This unit can be used to control up to 3 TJ grilles

 

FIRE TEST PERFORMANCE

Intumescent fire and smoke grilles tested to BS476 Part 20 (1987), achieving an integrity of 66 minutes. Also tested to BS476 Part 22 (1987), achieving an integrity of 73 minutes.

Automatic closure grille tested to BS476 Parts 20 & 22, achieving 73 minutes fire protection.

Did you find apk for android? You can find new Free Android Games and apps.

APPLICATION INSTRUCTIONS

Want create site? Find Free WordPress Themes and plugins.

The TJ grille can be fitted into doors, walls and partitions. Cut a hole in the door or wall to the sizes as quoted in the Order References – other sizes can be made to suit your opening (price quoted on request).  The grille is fitted into the aperture and screwed to the wall, door or partition. The intumescent plate is screwed to the opposite side of the door, wall or partition to the main unit. This intumescent plate need not be fitted if the main unit is fitted in ventilation ducting. The plates can be supplied with open slots which allow viewing or louvered for non-viewing.

Did you find apk for android? You can find new Free Android Games and apps.

DOWNLOADS

Want create site? Find Free WordPress Themes and plugins.

Please use the links below to download relevant information as PDF documents:

 

Technical Information

TD034-01-2014

 

Application Instructions

AP034-02-2015

 

COSHH Data

HS034-12-2013

Did you find apk for android? You can find new Free Android Games and apps.

ORDER REFERENCES

Want create site? Find Free WordPress Themes and plugins.

THERE ARE 4 MAIN OPTIONS TO THESE GRILLES: –

MANUAL RESET

This type is reset by pushing the internal plate back to its original position by means of pen or screwdriver. The plate is held open by an electro-magnet 24V 125mA.

AUTOMATIC RESET

This type resets itself and has a permanent loading of 24V 125mA, with the solenoid to open the grille taking 24V 8A for 1 second.

THERMAL BREAK

This type closes when the fire gets near the grille. At 55°C, a thermal link breaks and closes the shutter.

MEMORY SPRING

This type closes when the fire gets near the grille. At 50°C to 65°C, the grille will close, but the spring returns to the open position after the fire is over.

The grilles are supplied to be open normally and close up in a fire. However, all of these grille types can be made to be closed normally and to open in the event of a fire.

 Manual Reset and Automatic Reset grille options can be wired to a 24V alarm system. Alternatively, an Envirograf® mains to 24V control unit can be used to control up to 8 manual reset grilles or 3 automatic reset grilles. The control units have N O (normally open) and N C (normally closed) contacts to wire to the existing fire alarm or optional smoke detector.

 

PLEASE STATE CLEARLY WHICH OPTIONS ARE REQUIRED WHEN ORDERING

REF Internal Hole Size External Size
NTJ1 140 x 280mm 200 x 340mm
NTJ2 240 x 280mm 300 x 340mm
NTJ3 190 x 305mm 250 x 365mm
NTJ4 270 x 305mm 325 x 365mm
NTJ5 340 x 380mm 400 x 440mm

References shown for manual reset grilles only. Other grilles made to order.

Standard finish is brown or white.

Other colours may be available

State colour requirements clearly when ordering

Other sizes can be made to special order. Special custom sizes are non-returnable.

Without a suffix  –  Manual Reset Type

Add suffix /A for auto reset grille
Add suffix /MS for memory spring grille
Add suffix /TL for thermal break grille

TJ Grilles are available with the following optional extras:
CTJ1: A control unit supplying up to 3 grilles (2 if the grilles are larger than 400x400mm and 1 if over 500x500mm)) with a smoke detector circuit with N/O or N/C terminals for AC mains to 24V supply

SG/S: Smoke detector and base for use with the CTJ1 Control Unit

SG/CB: A control unit with a battery back-up and charger to keep the grille open in a 24 voltpower failure

 

 

 

Did you find apk for android? You can find new Free Android Games and apps.