ER-APB shut-off device, ER-AP shutter

• ER-APB with maintenance-free fire protection shut-off device to prevent fire transmission.
  With metal exhaust socket and metal shut-off shutter and soldered strut with soldered strut locking device. This is approved for a PAM-GLOBAL RML cast iron ventilation duct system or a system with a fire-proof shaft.

Also pay attention to the safety instructions: ER-APB: Safety instructions for installation of the fire protection shut-off device.

• ER-AP plastic shutter with plastic exhaust sockets and plastic backflow preventer. This is approved for use with a ceiling barrier system or an air extraction system without fire protection.