Page 186 - Estimators Piping Man Hour Manual
P. 186

Section Four—MECHANICAL INSTRUMENTATION           169

                      LIQUID    LEVEL GAUGE      GLASSES


                                    Reflex  Type
                                 MAN  HOURS EACH


                     Visible
                     Length                   Man Hours Each
                     Inches             CS               316SS
                     10-1/4             5.06              5.56
                     12-5/8             6.38              7.01
                     19-3/4             6.93              7.62
                     26-3/4             6.98              7.67
                     33-3/4             7.59              8.34
                     45-1/2             8.25              9.07
                     55                 8.91              9.80
                     65-3/8            10.12             11.13
                     78-3/4            11.44             12.58

     Note: CS = carbon steel, SS = stainless steel
     Above rating 2,400 psi @ 100° F to  1,300 psi  @ 600° F.
     Mass hours are based on Penberthy RL Series.
     Man hours include checking out of storage,  calibrating  if necessary,  hauling to location and installing.  Man hours do not
     include valve, piping, or any electrical installation. If liquid level gauge valves are required, use 2.0 man hours per pair.
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