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Dixon Sanitary 2016
800.789.1718
Technical
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Glossary of Terms
MTR
Material Test Report
Neoprene
Synthetic rubber, chemically and structurally similar to natural rubber
Nominal Size
A dimensional value assigned for the purpose of convenient designation. Used for pipe sizes.
On-Off Service
When the valve is being used to start or stop flow by being cycled to the full open or full closed position.
Operating Pressure
The pressure at which system functions. Also known as working pressure.
Polish
To make smooth and shiny by rubbing. Fittings may be machine polished to 180 grit finish. Polish is ID, OD, or both
per customer request.
Polyproylene
A lightweight synthetic plastic
Pressure
The force per unit area applied on a surface in a direction perpendicular to that surface.
PSI
Pounds per square inch
PSIG
Pounds per square inch gauge
PTFE
Tetrafluoroethylene is a high performance thermo plastic polymer that has excellent dielectric strength, chemical and
temperature resistance.
Santoprene
A thermoplastic elastomer, a rubber-like material that complies to FDA requirements
Service Temperature
The maximum and minimum temperature of the media in a system.
Silicone
Dimethyl silicone, a synthetic rubber
Sintering
Heat process in which powdered metal particles are heated to near melting point, fusing the metal granules
together.
Stem Torque
The force required at the valve stem to open or close the valve against system pressure and service
conditions.
Supply Pressure
The plant air supply pressure available to operate a pneumatic actuator. (plant air)
Surge
Also known as water hammer. A rapid rise or decrease of internal pressure. Surge conditions occur for various
reasons, typically, but not limited to: start and stop sequences.
Torque
A twisting or turning force. Usually measured in inch pounds (in-lbs) or foot pounds (ft-lbs)/(force through a distance).
Tube
A hollow cylinder especially one that conveys a fluid. For sanitary applications a thin wall is implied.
Tube Fitting
A length of tubing formed into a usable shape either welded to an apparatus or welded to ferrules for use in an
apparatus.
Tubing
A piece or length of tube.