Nominal pipe size (I.D.)
Dimension between mating flages. Also known as: Flange-to-flange, OAL or Takeout.
Indicate fluid being piped. Refer to our "Chemical/Rubber Guide" for elastomer compatibility.
Indicate if liquid, gas, slurry, solids, etc.
Temperature of Flowing Medium (F)
Indicate both operating and maximum temperatures at the expansion joint
Note: See Table: "Comparative Properties of Typical Proco Products, Inc. Elastomers"
Operating Pressure of the System
Actual pressure in which system works in normal conditions (use PSIG and "Hg)
Design Pressure of the System
Highest/most severe pressure expected during operation (use PSIG and "Hg)
Surge Pressure of the System
Increased pressure due to pump starts, valve closings, etc. (use PSIG and "Hg)
Test Pressure of the System
Hydrostatic test used to demonstrate system capability (use PSIG and "Hg)
Constant, intermittent, shock, pulsating, etc.
In inches as a result of pipe extension-expansion
In inches as a result of pipe contraction
Indicate specific standard such as: ANSI,DIN, JIS, B5, Navy.
If special, provide: Flange O.D., Bolt Circle, Number & Size
Indoors or outdoors
Are required on all installations. Reusable, they need not be ordered with replacement or spare expansion points
Are recommended for use in all expansion joint applications. Control units must be used when piping support or anchoring is insufficient