- At the desired gage location: FIG. A, B, C.
- Locate centers.
- For thin wall tank, drill two .52 (13.10mm) dia. holes in tank wall corresponding to centers of gage.
- OR -
- If preferred, where tank wall is heavy enough to tap:
Drill and tap two holes per your selected mounting bolt thread (ie. 1/2-20UNF, or M12x1.75, etc.) in tank wall corresponding to centers of gage.
- Remove burrs from holes to provide good sealing surfaces. FIG. A, B, C.
- Install gage to tank - make sure O-rings are set properly in recess provided, either in gage body or in sealing spacer sleeve, (outside of tank wall between gage and tank). FIG. E
- Tighten through bolt with a socket wrench. Torque mounting bolt to 60 inch lbs (6.78N•m). It is not necessary to over compress seals to make a liquid tight seal. FIG. E.
- Gages 3.00 through 12.00 (76.20mm through 304.80mm) centers inclusive have tank seals recessed into the gage body - Gages 13.00 through 72.00 (330.20mm through 1828.80mm) centers inclusive are furnished with sealing spacer sleeves.*. FIG. E.
- For gages with centers of 48.00 (1219.20mm) or more, center mounting kit brackets are furnished. To install the center mounting kit bracket, tack weld two 1/4-20 full nuts to the tank wall as shown below. FIG. D.
FIG. A

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FIG. D
Mounting kit furnished complete

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FIG.B
Thin wall tank with access to inside to install (2) nuts

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FIG. E

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FIG. C
Heavy wall tank

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LDI Industries, Inc.
1864 NAGLE AVE., P.O. BOX 1810
MANITOWOC, WI 54221
PHONE: (920) 682-6877
FAX: (920) 684-7210
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