New angle-body piston valves from Parker Fluid Control Div.,, New Britain, Conn. (parker.com/fcd), easily handle millions of cycles, according to the company, and were designed to be versatile and durable. Stainless-steel or bronze valve bodies are pressure rated up to 580 psi. The valves handle high temperatures (up to 430°F) and aggressive media. NPT porting is standard, but other connections are available. Piping sizes range up to 3 in.