SÄLZER security units protect people and property against attacks involving explosives and against shock waves caused by accidents, e.g. in the petrochemical industry, where an exploding mixture of air and gas is released. Product tests in accordance with international standards or individual customer requirements are proven with certificates from independent test institutes and attest to the high level of protection against shock waves.
Challenges with explosions:
Generally, explosions suddenly release large amounts of energy, usually in the form of pressure and kinetic energy. Huge forces act across the entire unit. In order to absorb this huge stress, elasticity and flexibility are required.
Deciding factors for the destructive power of an explosion include:
- The explosive charge mass
- Removal of the source of explosion
- The duration of pressure
From this interplay of mass, removal and duration of pressure, three different threat scenarios can be derived, the specific destructive powers of which need to be taken into account in the construction in order to ensure that the units can provide a corresponding protective function:
Large explosive charge
VBIED (Vehicle Borne Improved Explosive Device) = car bomb. This corresponds to a vehicle bomb with an explosive charge of up to 500 kg that is ignited 30 metres away.
individual customer tests
To give our customers peace of mind, we perform extensive real blast tests under variable conditions. Based on these empirical values, SÄLZER offers solutions which can be perfectly adapted to suit your individual threat from explosion.
Small explosive charge
PBIED (Personal Borne Improved Explosive Device) = backpack bomb.
This threat scenario corresponds to the European standard for field tests in accordance with DIN EN 13123-2. In the EXR5 class, an explosive charge of 20 kg is detonated 4 metres from the test unit.
Our approach: Tests and classifications in accordance with international security standards.
Explosions or deflagration of a mixture of gas and air in the event of accidents in petrochemical plants or in the chemical industry.
Testing in accordance with the requirements of the chemical and petrochemical industry
In the event of explosions in the chemical industry, for example in a petrochemical plant, an explosive mixture of gas and air generates a long-lasting but relatively low pressure. This produces a much different stress profile compared to bomb explosions, which are marked by a brief, incredibly high pressure.
We test the security of our products as part of numerous real blast tests. We develop products and test them to their full limits, so that we can protect human lives in real extreme situations. This even includes cyclones!
Karlheinz Mankel, Head R&D of SÄLZER
During an explosion, extreme forces are released. In order to withstand this high pressure, all the components in the unit need to complement each other in terms of their blast prevention properties.
At SÄLZER, each individual component in a unit – wall attachment, fixings, locking point, frame, vent, glass attachment and glazing – is designed to ensure that the complete installed unit reliably withstands the explosion pressure for a sufficient amount of time.
Each test is conducted in a realistic test environment, which simulates the subsequent installation. This is the only way to ensure that the units can actually fulfil their intended protective function to the full extent in an emergency.
Regardless of the underlying standard or the customer requirements, all product tests at SÄLZER are conducted by accredited test institutes and are verified by means of test certificates.
Our decades of testing experience have enabled us to build up extensive specialist knowledgeof how shock waves affect individual units. Our expertise is not just limited to standard solutions, but extends to a range of different products, design options, sizes and materials. We have tested large-scale façade units which are particularly sensitive to explosion pressure.
Selected test videos
SÄLZER products are developed for high security from the outset – and we are also aware of our customers' additional requirements. High security should ideally be concealed, and there are two good reasons for this. Firstly, design and attractive appearance are a high priority in many newbuilds and indeed in beautiful existing buildings too. Secondly, increased security measures can signal to potential burglars that an attack would be worthwhile.
This is why SÄLZER security components are concealed inside the profiles and the overall components blend in seamlessly with unprotected units, despite offering the highest resistance classes.
Even though rigid constructions are required to safeguard against bullets, flexibility is needed when it comes to protecting against explosions, and stability for burglar resistance – completely contradictory requirements that we are able to meet thanks to our specialist expertise.
Bullet resistance up to FB7-NS, forced entry resistance up to RC5, explosion resistance, e.g. for steel doors up to a pressure of 2,750 kPa (27.5 bar) as well as fire and smoke protection up to EI90/S20
Every building project is unique and the perfect high-security solution depends on a number of different factors. Contact us now and we will work out your requirements together, so that you can have the perfect security system and protect what is yours and what is important.