Smoke and Fire Protection: STUV as Partner of Law Enforcement Authorities

New solution for existing STUV double bit systems

Heiligenhaus, 06.06.2012 – Smoke and fire protection measures in the door and lock discipline are not only a subject with new correctional facility buildings.  At the same time, the existing old stock and therefore the much larger share of real estate, is affected. Implementation of the specified provisions in existing facilities is much more time and cost intensive in comparison to new building projects.

The high-security locks in use should have a primary characteristic: Security. That this requirement is fulfilled is evidenced by the escape statistics of correctional facilities.  According to these, there has not been one successful escape from a German correctional facility in the past 50 years which can be ascribed to failure of the locking technology.

New requirements

Irrespective of this, new provisions and regulations with regard to smoke and fire protection do place additional requirements on the locking systems. Locks installed in smoke and fire doors must be fitted with a latchbolt which also guarantees integrity in the case of fire. Furthermore, the latchbolt may not be lockable in position in the retracted state. STUV has already taken this feature into consideration with the HSL series and can provide issued test certificates from the Material Testing Institute (MPA). This criterion could not be implemented up to now with the conventional double bit technology locks.

Old for new – simple exchange

Up to now –  because STUV recently supplemented the available product line of double bit locks, which have been available since the 1980s, with a new lock type. The product meets the requirements for locks for smoke and fire doors.  Important argument for the user is the simple exchange against existing access door locks of type 8.14.0501.3/4 and 8.14.1501.3/4. Conversion work on the lock mounting of the existing doors is generally not necessary as old and new locks have identical dimensions. An additional argument pro STUV: the lock can be integrated in the existing double bit closure. New employee keys are not necessary.

Testing at the MPA is planned for 2012. The goal is certification through a general technical approval test certificate and the labelling of the locks with the conformity marking. The new lock type can be supplied before certification and from early summer 2012.