Do not use at temperatures or pressures above those recommended by the manufacturer.
Consult the manufacturer's literature or contact him for the appropriate fitting system on the anhydrous ammonia hose.
For anhydrous ammonia hoses only use permanent steel fittings.
The anhydrous ammonia hoses must not be connected again under any circumstances.
INSPECTION PROCEDURES 检验程序
The hoses for anhydrous ammonia have a limited life and the user must be alerted by signs of impending failure.
DAILY INSPECTION - Prior to use daily, a visual inspection should be performed. If you noticed unusual aspects, the hose shall be subject to the pressure test.
NEW ASSEMBLY - All new hoses must be tested before use to determine if there is any damage during storage or transport.
NORMAL USE - When the hose for anhydrous ammonia is subject to ordinary use, the frequency of testing should be every 90 days for the first year and every 30 days thereafter.
正常使用 - 当无水氨软管作为一般使用的时候，测试的频率应为第一年每90天一次，此后每隔30天测试。
HARD USE - The hose assemblies shall be tested immediately after they are subjected to abnormal use as traction end. Flanged hoses, crushed by vehicles, or subject to kink must be removed from service.
猛烈使用 – 当总成经过非正常地管端牵拉使用后，需要立即检测。法兰连接的管子，被车碾压的或者扭曲的管子都必须换掉。
HEAVY DUTY - Hoses for anhydrous ammonia subject to severe use, such as driving on surface edges, bent with narrow angles, or continuously exposed to the weather conditions, deteriorate more quickly than hoses handled with care. Hoses under heavy use must be tested every 30 days from the date of installation.
重役使用 – 无水氨软管受到重度的使用，如车辆在管子表面边缘上行使，窄角度弯曲，或连续地暴露于外界大气环境中，管子恶化的速度比小心使用快很多。软管在重度使用时必须从安装之日起每30天进行测试。
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.