Abstract: A flow control valve for controlling water flow, for example through a refrigeration unit condenser spray cooling system. The valve includes an arm that carries a paddle adapted to be placed in an air stream for deflection by an air current. Movement of the paddle causes a cam pin within the valve to rotate, thereby radially deflecting a valve pin within the flow passageway to pivot relative to a valve seat at an orifice. The valve pin deflection results in an opening between the valve pin and the orifice to allow flow through the valve. Paddle deflection is thermally controlled by a bimetallic spiral spring 32, which can be adjusted to regulate the temperature at which the paddle is allowed to deflect relative to the body of the valve.

Abstract: A clamping device for use with a gas spring in the form of a cylinder containing a gas, and a piston and piston rod movable within the cylinder. The clamping device is secured to the end of the cylinder through which the piston rod passes, and includes a clamping portion that engages and clamps around the piston rod to provide resistance to movement of the piston rod relative to the cylinder. The clamping device is a U-shaped structure having clamping legs that can be moved toward each other by a bolt and nut arrangement. The clamping device can be made from an injection molded plastic material, and the device permits continued use of the gas spring after the gas pressure has diminished to a level at which replacement of the spring would otherwise be required.