Is a plastic head or hat mounted shield used to protect face in performing certain types of work.

Example: Face shield is used while handling chemicals for Precooling water syste

(a)  

A system designed and installed so that in case of trouble, it will shut itself down before a hazardous condition arises, or before damage can be caused to equipment. Normally, control valves are designed to be either “Instrument air fail to open” or “Instrument air fail to close” to be in line with fail safe conditions

(a)  

A short or ground in electrical cables or equipment.

(a)  

Material which is introduced into a vessel for processing.

Example: Air is feed stock for ASU’S.

(a)  

Mechanical device used to clean foreign materials from a Gas or Liuid.

(a)  

A device which regulates the supply to the process in accordance with a signal from a controller. Usually, it is a pneumatically or electrically operated valve

(a)  

Any of the various portable devices used to extinguish a fire by the ejection of a fire inhibiting substance such as water, carbon dioxide, or Dry chemical.

(a)  

Used for furnishing water to plant fire lines in an emergency.

(a)  

Water from plant fire lines used for emergencies

(a)  

The swinging seat in a check valve

(a)  

A glass vessel used in laboratory work.

(a)  

Internal head on the return end of a multiple pass heat exchanger bundl

(a)  

A type of roof (steel or plastic) which floats upon the surface of the stored liquid, used to decrease the vapor space and reduce the potential for evaporation. No such floating roof on our plant.

(a)  

When liquid flowing down across the trays of column is great enough to prevent vapor from flowing upward through the trays.

(a)  

When the rate of liquid flowing down a column exceeds the capacity of a down comer, the result is an increase in liquid level on the tray. This increase the pressure differential across the tray, which in turn cause more liquid to back up through the down comer. Ultimately, the column will fill with liquid and cease to operate.

(a)  

A sketch that describes the flow of materials through a given unit or plant.

(a)  

A substance tending to flow.

(a)  

The removal of suspended contaminants in a line, tank or vessel.

(a)  

A froth of bubbles on the surface of liquid, often caused by an organic contaminant or from a high PH

(a)  

The deposition of undesirable components on the shell or tube side of the heat exchanger and reducing the exchanger’s efficiency.

(a)  

The temperature at which freezing (from liquid to solid phase) occurs. Freezing point of water is 0°C.

(a)