Abstract: Adapter clamps and systems that include adapter clamps for facilitating installation of photovoltaic (PV) components to a cylindrical pile are provided. In one embodiment, an adapter clamp may include a first arm configured to be secured to a first side of the cylindrical pile. The first arm may have edges that are configured to create Hertzian contacts with an outer surface of the cylindrical pile, and a mounting surface configured for coupling a first PV component. The adapter clamp may include a second arm configured to be secured to a second side of the cylindrical pile. The adapter clamp may further include a fastener configured to secure the first arm to the second arm and decrease a distance therebetween in order to create a frictional attachment between the first and second arms and the cylindrical pile.

Abstract: A vent valve comprises a valve housing defining a vent port and a valve member mounted within the housing so as to define a fluid system chamber and an activation chamber with the housing. The valve member is biased towards a closed position, in which fluid communication between the fluid system chamber and the vent port is prevented, by fluid pressure within the fluid system chamber acting on the valve member. The valve member is biased towards an open position, in which there is fluid communication between the fluid system chamber and the vent port, by fluid pressure within the activation chamber acting on the valve member. The vent valve further comprises a pressure limiting arrangement associated with the activation chamber to limit pressure therein to a predetermined pressure value.

Abstract: A vent valve comprises a valve housing defining a vent port and a valve member mounted within the housing so as to define a fluid system chamber and an activation chamber with the housing. The valve member is biased towards a closed position, in which fluid communication between the fluid system chamber and the vent port is prevented, by fluid pressure within the fluid system chamber acting on the valve member. The valve member is biased towards an open position, in which there is fluid communication between the fluid system chamber and the vent port, by fluid pressure within the activation chamber acting on the valve member. The vent valve further comprises a pressure limiting arrangement associated with the activation chamber to limit pressure therein to a predetermined pressure value.