Parker Hannifin manufactures a line of stainless steel, thermostatic expansion valves used in small chillers, heat pump units, air conditioning units, freezers, walk-in boxes, refrigerated cases and mobile refrigeration applications. The valves also feature an extended ODF solder connection and balanced port design.

The Sporlan Division of Parker Hannifin manufactures 27 series of refrigeration thermostatic expansion valves. The division also produces service parts for thermostatic expansion valves.

Dayton Refrigeration Service Inc. distributes thermostatic expansion valves manufactured by Parker. The valves feature nominal cooling capacity ranges of 1/4 to 1 ton, 1-1/2 to 3 tons, and 1-1/2 to 4 tons.