RHZK-2/4 air compressor SCBA for dangerous environment ModelRHZK6.8RHZK3RHZK9Filling gasAirAirAirTotal weight9KG(without air)8.5KG(without air)9.8KG(without air)CertificationsChina National Fire Equipment Quality Supervision and inspection center certificationChina National Fire Equipment Quality Supervision and inspection center certificationChina National Fire Equipment Quality Supervision and inspection center certificationMaterialCarbon fiber composite (carbon fiber fully wound)Carbon fiber composite (carbon fiber fully wound)Carbon fiber composite (carbon fiber fully wound)Inner volume6.8L3L9LRated working pressure30Mpa30Mpa30MpaAir bottleModelRHZK6.8RHZK3RHZK9Hydraulic test pressure45Mpa45Mpa45MpaCylinder weightabout 4kg(Except valve weight)about 3.5kg(Except valve weight)about 5.3kg(Except valve weight)Product standardQ/KJ015-2002[Aluminum Alloy fiber winding cylinder liner]Q/KJ015-2002[Aluminum Alloy fiber winding cylinder liner]Q/KJ015-2002[Aluminum Alloy fiber winding cylinder liner]