A J Services manufacture a large number of different styles of fire and smoke dampers. Both fire and smoke dampers play a vital role in the safety of a building which has ductwork system which is connected to a HVAC system. Fire dampers have an attached fusible link which is set to be triggered when a pre-determined air temperature is reached - this forces the blades to shut and allows the fire/smoke to travel no further. The links monitor the air temperature and are traditionally set to 72 degrees, although this can be altered if asked. The dampers are rated at 2hrs, this means that they will contain the fire in place for 2hrs.
The dampers are manufactured from galvanised steel and can be produced in sizes ranging from 80mm to 2000mm with options for both circular and square/rectangular ducting. The casing on all dampers is rectangular, so the dampers which are suitable for spiral tubing have an attached spigot - this is where the damper can be attached to tubing and as such the blades are described as out of stream. The rectangular dampers can have an attached spigot, no spigot or can be an induct damper. All dampers as standard are supplied with hanging cleats, and have options for drywall framing and HEVAC frames.
Refractory Fire Brick
We supply 25mm, 26mm Plain Particle Boards for filling inside the doors. 2440x1220x26mm plain particle board shall weigh about 40kgs. We do particle board starting 9mm to 40mm and above for various purposes like lamination grade fully sanded on both faces, for routing purpose, furniture backing etc. 26mm(non sanded) :520Kg/m3 - E2 Grade 30 to 64mm- E1, High Moisture Resistance, Both Sides sanded 26mm(non sanded) :520Kg/m3 - E2 Grade 30 to 64mm- E1, High Moisture Resistance, Both Sides sanded, suitable for Fire door -tested to BS standard We can also adjust the density of board as per our customer requirement. Our plain particle boards are priced competitive. Please contact us for more details.
Duct Tape
Total Moisture : 1% ash Content :10% Volatille Matter :17% Fixed Carbon :71% Total Sulfur : 0,07% Gross Caloric Value : 6800 Kcal/Kg
Total Moisture : 1% ash Content :10% Volatille Matter :17% Fixed Carbon :71% Total Sulfur :0,07% Gross Caloric Value :6800 Kcal/Kg
Total Moisture : 1% ash Content :10% Volatille Matter :17% Fixed Carbon :71% Total Sulfur :0,07% Gross Caloric Value :6 800 Kcal/Kg
Wood Charcoal Moisture 5% Volatile 20% Ash content 4.9% Fixed carbons 69.5% Sulfur 0.07% Gross coloric value 7000 kcal
Total Mousture =---- Ash Content : 4,26% Volatile Matter : 4,79% Fixed Carbon :90,95% Total sulfur :0,05 % Gross Caloric Value :7676 Kcal/Kg Ready for grade = AB ABC CD DE
Insulation Bricks
