A follower plate is configured for closing off a container for viscous material, which container is open toward the top, has a container bottom and a container wall that extends upward from the container bottom, which plate can be moved in the direction toward the container bottom, lying against an inner surface of the container wall, which surface faces the container interior, and which plate has a plate body in which a material outlet is arranged for conveying the viscous material out of the container, and at least one ventilation opening is arranged for conducting air out of the container. A valve seat of a ventilation valve, firmly connected to the plate body, is arranged in each ventilation opening.

A hydrogen fueling station includes a hydrogen supply header, a hydrogen pump cylinder, and a hydrogen piston, the hydrogen piston including a piston seal. The hydrogen pump cylinder is configured to receive hydrogen from the hydrogen supply header. The hydrogen piston, the piston seal, and the hydrogen pump cylinder define at least in part a variable working chamber. The hydrogen piston is configured to provide a stroke length of greater than 310 mm.

A hydrogen fueling station includes a hydrogen supply header, a hydrogen pump cylinder, and a hydrogen piston, the hydrogen piston including a piston seal. The hydrogen pump cylinder is configured to receive hydrogen from the hydrogen supply header. The hydrogen piston, the piston seal, and the hydrogen pump cylinder define at least in part a variable working chamber. The hydrogen piston is configured to provide a stroke length of greater than 310 mm.

A hydrogen fueling station includes a cryogenic pump with a hydraulic cylinder including a hydraulic piston. The hydraulic piston includes a piston seal separating a low pressure portion of the hydraulic cylinder above the piston seal from a high pressure portion of the hydraulic cylinder beneath the piston seal. A thermal decoupling rod is fixedly coupled to an upper end of the first hydraulic piston. A hydrogen piston within a first hydrogen pump cylinder is located above the thermal decoupling rod and aligned with an upper end of the thermal decoupling rod.

A hydrogen fueling station includes a cryogenic pump with a hydraulic cylinder including a hydraulic piston. The hydraulic piston includes a piston seal separating a low pressure portion of the hydraulic cylinder above the piston seal from a high pressure portion of the hydraulic cylinder beneath the piston seal. A thermal decoupling rod is fixedly coupled to an upper end of the first hydraulic piston. A hydrogen piston within a first hydrogen pump cylinder is located above the thermal decoupling rod and aligned with an upper end of the thermal decoupling rod.