Thermal Designs, Inc. Manufactures Passive Fireproofing materials. Over the past 25 years we have become the preferred failsafe, people-proof method of fireproofing actuators, valves, junction boxes and other components of the designation ESDV(emergency Shut Down, Emergency Blow Down, Emergency Dump Valve and other names used to describe the isolating of hydrocarbon hold ups in the refining cycle as well as HF, EO, and LNG services.