Abstract: Membrane pump device, wherein the membrane pump device comprises a housing, and the housing contains a first and a second chamber, wherein the first chamber is separated from the second chamber by a movable membrane, while a liquid being pumped can be introduced in the first chamber, and a drive liquid can be introduced into the second chamber, wherein the second chamber has an outlet opening, and the outlet opening is present on an outer side of the housing. The membrane pump device is characterized in that the membrane pump device comprises a valve, while the valve is arranged at the outlet opening and closes off the second chamber from the outside.

Abstract: The present invention relates to a pulsation damping system for a paint spray device for spraying paint including a pulsation damper for damping the pulsation of a paint stream, wherein the pulsation damper includes a housing, a chamber, a chamber inlet, a chamber outlet and a damping means. In this connection, an opening of the chamber outlet comprises a cross sectional area which is smaller than a cross sectional area of an opening of the chamber inlet, and as a result forms a throttle.

Abstract: The invention relates to a paint spraying unit which includes a paint pump, a paint storage container, a paint spraying device, a paint line and a drive device, where the drive device drives the paint pump and the paint pump conveys paint out of the paint storage container through the paint line to a nozzle of the paint spraying device. In this connection, the drive device includes a compressed air rotation motor as the motor.

Abstract: The present invention relates to a pulsation damping system for a paint spray device for spraying paint including a pulsation damper for damping the pulsation of a paint stream, wherein the pulsation damper includes a housing, a chamber, a chamber inlet, a chamber outlet and a damping means. In this connection, an opening of the chamber outlet comprises a cross sectional area which is smaller than a cross sectional area of an opening of the chamber inlet, and as a result forms a throttle.

Abstract: The invention relates to a paint spraying unit which includes a paint pump, a paint storage container, a paint spraying device, a paint line and a drive device, wherein the drive device drives the paint pump and wherein the paint pump conveys paint out of the paint storage container through the paint line to a nozzle of the paint spraying device. In this connection, the drive device includes a compressed air rotation motor as the motor.

Abstract: A container for closing an inlet of one or more hoses including a sealant cap, a cylindrical component and a cover, with one or more hoses passing through the cap and sealed by gaskets between the cap and hoses and wherein the hoses pass through a stabilization bar. The cover is removable from the cylindrical component, and the cylindrical component is removable from the cap. A viewing window and inlet aperture are provided in a side of the cylindrical component.