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Below are the notes for the proper use of the product in ATEX environments and warnings resulting from the risk analysis for the verification of effective ignition sources.

Note A – Hot surfaces
提示A - 热表面。

The hose does not contain heat sources so the surface temperature of the hose depends strictly on the use by the end user. In the pneumatic conveying systems periodically check the integrity of the hose and its layers.
Do not use the hose if the inner layer is heavily worn. The range of the working temperature of the material for which we guarantee the properties is according to the technical data sheet of the product.
Damage resulting from improper use of the product are not attributable to the manufacturer.

Note B – Sparks of mechanical origin
提示B - 机器原始火花

The hose has no moving parts and it is not able to generate this source of ignition. In the pneumatic conveying systems it is likely that sparks are carried from earlier process operations and not due to the hose itself. It is the end user’ s responsibility to operate so that this source of ignition is not present, internally and externally to the hose.

Note C – Electrical equipment
提示C - 电气设备

There is no electrical materials provided with the hose. The possible steel helix wire (if present between the layers of the hose) has been designed, to impart mechanical strength to the hose. The helix wire is not intended as an electrical conductor but it can help the dispersion of electrostatic charges if and only if it is correctly connected to the ground line or to equipotential bonding jumpers with equipment already connected to the ground line.

Note D – Eddy currents
提示D - 涡流

This ignition source is not applicable to the hose in question. The end user must operate so that the hose is not isolated from sections of insulating hoses. The hose, thanks to its conductive/dissipative characteristics is able to disperse possible electric/electrostatic charges accumulated during the process if and only if the hose is properly connected to the ground line.

Note E – Electrostatic charges
提示E - 静电

The hose does not contain or inherently generates electrostatic ignition sources. Eventual generation and accumulation of charges may depend on the material transported in the process and the ability of the material, properly connected with equipotential connections and/or connections with grounding, to be able to drain them. Care should be taken in the perfect cleaning and maintenance of connections
and periodic assessment of the earth resistance that can detect anomalies in the system. The material the hose is made of has been designed to maximize the dispersion of electrostatic charges that can be generated due to the process. The nonapplication of these notes and improper use of the product as designed, absolve the manufacturer from any responsibility for any damage that may
result. According to the characteristics and needs of the process that may generate internal and external hazardous atmospheres, detailed studies should be performed by experienced staff to guarantee a proper use of the product.
The concepts, recommendations, references and the limits reported in the following standards are extremely important in order to carry out a detailed study:
• CEI 3155 – CLC / TR 50404 – Electrostatics – Code of practice for the avoidance of hazards due to static electricity
• NFPA 77 - 2014 - Recommended Practice on Static Electricity
• UNI EN 13463-1-2009 – Non-electrical equipment for use in potentially explosive atmospheres-Basic method and requirements
• UNI EN 1127-1/2007 Explosive atmospheres. Explosion prevention and protection – Part 1: Basic concepts and methodology
• CEI 3155 – CLC / TR 50404 - 静电学 -避免静电危险的工作守则
• NFPA 77 - 2014 - 关于静电的推荐规则
• UNI EN 13463-1-2009 - 使用的非电气设备的潜在爆炸性环境的基本方法和要求
• UNI EN 1127-1/ 2007爆炸性环境。防爆和防护 - 第1部分:基本概念和方法

Note F – Adiabatic compression and shockwaves
提示F - 绝热压缩和冲击波

It is not applicable to the supplied hose. The possible releases of gas at high speed can only be caused by the process. The user must assess the possible presence of this ignition source before putting the hose into use.

Note G - Temperature increases due to chemical reactions or unstable materials
提示G - 由化学反应或不稳定的材料引起的温度升高
Chemical incompatibility of the materials of the hose with the product/s to be conveyed. Verify in the design phase and before use, the chemical compatibility of the substances used in the process with the material of the hose. For any questions or doubts, please contact IVG Colbachini for the necessary compatibility checks.

Note H - Combustion of a layer of powder or other combustible material: presence of dust between moving parts
提示H - 一层粉末或其他可燃物质的燃烧性:运动部件之间的存在粉尘
The ignition source is not inherently present in the product supplied. Correct transport speeds could prevent accumulations of the dust.
Periodic cleaning prevents dust accumulations that, besides modifying and make less effective the dissipative characteristics of the material,could promote this kind of ignition.

For special needs please contact us directly.