What does SIL actually mean?
The abbreviation SIL stands for Safety Integrity Level.
In order to protect people, the environment and plants from damage, the plant operator must determine the risks of his plant on the basis of a hazard and risk analysis and then reduce them with suitable protective measures.
SIL describes the degree of risk reduction to an acceptable residual risk. The SIL levels range from SIL 1 (lowest level) to SIL 4 (highest level).
The challenge for plant operators:
According to IEC 61608-1, safety valves, pressure relief valves and pressure reducers fall into the category "Other risk reduction measures". However, this category is not considered in detail in the SIL standard. This regularly leads to confusion in the SIL classification of the entire plant, as a complete evaluation of the entire plant cannot be carried out in this way or the SIL classification of the valve concerned is unknown.
We stand by our customers who are confronted with this problem and have our valves evaluated according to the Safety Integrity Level. Our products are evaluated by an independent product testing agency and testing organisation. This confirms that our products are SIL2 and SIL3 capable.
Click here for detailed information on the SIL assessment of our products.