A. CALIBRATION ASSEMBLY: Inner and outer plastic housings with printed calibration paper between
housings. (options -glass inner piece)
B. INDICATOR TUBE: Red HDPE plastic
C. LOCK NUT: Red plastic to hold calibration assembly in place. (options -aluminum lock nut)
D. DURO NITRILE GASKET: On which flanges on base of calibration assembly are firmly seated to
prevent leakage. (options -viton gasket)
E. ALUMINUM DIE CAST BUSHING: Type K-1.5 fits 1.5” standard npt tank flange. Type K-2 fits
standard 2” npt tank flange.
F. FLOAT ARM ASSEMBLY: On gauges 42” and under—1/8” aluminum rod connected to indicator on
top and float on bottom. On gauges 43” to 76”—2pcs of 1/8” aluminum rod connected in middle by
compression union, on the bottom to a float, and on top to an indicator. On gauges 77” to 170” inches-
3 or more pieces of 3/16” aluminum rod connected by compression unions. Attached to float on
bottom and indicator on top.
G. PLASTIC FLOAT 76” AND UNDER: Polypropylene float 1.5” dia. x 3.25” long.
H. CORK FLOAT 77” AND OVER: Poly coated cork float 1 7/8” in diameter. Length of float varies with
length of gauge.
Leak Gauges are specifically manufactured for the interstitial space on double walled containment units. They
provide a simple visual indication that a leak has occurred in the inner tank.
Ordering Instructions — Part numbers are as follows K-(opening size)-(length) Example K-2-48. If gauge is
not mounted in an interstitial tube, please specify that gauge needs a guide. If gauge is mounted in a 1.5” interstitial
tube, please request small floats.
Other Options — Alarm. Gauge Guard. Specialty Replacement Parts
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