Waldner achieves its 22nd patent , a locking device for vertical sashes of laboratory fume cupboards, in keeping with the EN14175 standard for laboratory fume cupboards
The new EN14175 standard for laboratory fume cupboards requires a sash locking device to be fitted to the vertically opening sash of a fume cupboard to prevent the sash from being opened beyond the largest operational opening.
The Waldner design engineers have integrated this sash locking device into the existing geometry of the aerodynamically shaped sash handle, in order that the balanced, smooth-running sash mechanism, including the release of the sash lock, can still be operated with one hand.
In terms of safety, ergonomics and functionality, Waldner says it is once again leading the field in providing products which go beyond the requirements of today's standards.
Other Waldner patents for laboratory fume cupboards include a profiled front air-foil sill, profiled side upright columns, sash without counterweights, special purpose demonstration fume cupboard with a curved front, rear panel for walk-in type fume cupboards, and fume cupboard sash with toothed pulley belts for signal transmission.
Measuring system to determine the extract volume flow rate within the fume cupboard (FAZ), measuring system to determine a volume flow rate (airflow controller), self-regulation of the measuring system to control the extract volume flow rate, calibration device for an extract volume flow rate measuring system, extract air control device for a laboratory fume cupboard (Crossbox), laboratory ventilation system (RL), pass-through fume cupboard with extraction through mobile sliding blackboards.
