PVC FRAMES, COVERS AND GRIDS THE ADVANTAGES OF PVC PVC is one of the most widely used plastics in the world for its versatility: despite being rigid in its pure state, it can be mixed with plasticizers that make it flexible and mouldable. Its main advantages are: Most PVC products are characterised by a rather long service life. This leads to greater efficiency in the use of natural resources. PVC products also require little maintenance, so there is a saving in both economic and environmental terms. Due to its low carbon content (<40%), PVC is the plastic material with the lowest contribution to CO2 emissions and oil consumption. Some studies on the main PVC applications, demonstrate that in terms of GER (energy consumption) and GWP (heating potential global), the behaviour of PVC can be compared to that of alternative materials and in many cases is even better both in terms of energy consumption and CO2 emissions. • It ensures high performance at an accessible cost; • It is an insulating material; • It is stable; • It is strong and versatile • It is fire resistant; • It is durable; • It is hygienic and recyclable For these reasons, PVC applications have received excellent ratings in terms of environmental performance and sustainability by important research entities and international environmental certification. First Plast has a wide range of PVC GRIDS, COVERS and FRAMES, available in different models. All versions are made of anti-shock PVC to obtain a remarkable elasticity and resistance to impact, frost, chemical and atmospheric agents. In compliance with safety standards, the walking surface is sliproof. Due to their aesthetics and functionality, PVC gratings and covers are suitable for use on all floorings in general. The values of the tensile strength of PVC anti shock grids and covers, are in compliance with the standards EN 124: 2015. This test method uses punches with different diameters depending on the size of the cover or grid subject to pressure. The standard establishes load resistance classes corresponding to levels of force at which cover and grids must withstand for a given time without breaking or failure. The minimum resistance class corresponds to 15 kN (Class A15), the next class to 125 kN (B125), then there is class C250 and so on. For plastic covers and grids, however, it is important to know the value of the load that causes them to break, which should be sufficiently high to allow the product to be used even where significant loads are expected (for instance the passage of motor vehicles in private areas). To determine the Breaking load, the force that is applied by the press and punch, is progressively increased until the product breaks or fails: thus we obtain the Breaking load, which is expressed in kN (kilo Newton). The force of 1 kN corresponds to 100 kg or 1000 Newtons: a cover can therefore be classified A15 (i.e. at the lowest Class of load) but have a Breaking load of 70 kN (i.e. 7000 kg or 7 tonnes) which makes it therefore extremely resistant while not reaching Class B125. EN 124:1995 STANDARD : RESISTANCES OF GRIDS AND COVERS Frames, grids and lids are indicated for electrical systems thanks to their dielectric and self-extinguishing features. Our products are suitable for applications where high load resistance is required. The light grid and lid are ideal in pedestrian areas. 20
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