Eldex pumps are designed to operate under ambient temperature conditions. Do not use the pump in an environment that exceeds 35°C. It is possible to pump fluids at elevated temperatures. Although the reaction of specific fluids at elevated temperatures to the wetted parts may vary, the plastic materials in the liquid end will usually be of concern. Generally, the CTFE maintains integrity at temperatures up to 200°C. The PTFE piston seal material is generally good to 260°C.