• Chemical Tank • Plating Tank
• Etching Tank • Wire Processing Tank To assure highest strength at tank corners and seams, Tri-Mer technicians use programmable
extrusion welding systems. The extrusion welder operates under high temperature and pressure,
grinding and melting virgin polypropylene and extruding it through a die. The molten material is
mated to virgin sheet stock to form a molecular bond equal in strength to solid sheet. To insure full strength at all bend sites on the tank, Tri-Mer uses an automatic bend system.
A heated knife serrates sheet stock at the bend site. When ejected, the machine creates a corner
equal in strength to unfabricated virgin grade material. Corners formed in this manner eliminate
corner welds, which could otherwise cause structural weaknesses in the tanks. To distribute sidewall stresses evenly, every Tri-Mer chemical tank is manufactured using a
routed bottom plate. The plate is up to 1-1/2” solid polypropylene for maximum rigidity; a machined
channel is created in the plate, to which sidewalls are fitted, and extrusion –welded on both sides.
This assures maximum tank strength without distortion and eliminates the shear point. With this Tri-Mer feature, the inset position of the vertical wall – rather than the weld itself – holds the sidewall in place.
A Tri-Mer chemical tank has double weld-strength – inside and outside. To hold the tank in position and prevent bowing, every large Tri-Mer chemical tank features structural
side supports or cradles manufactured from 316L stainless steel, coated-steel supports or welded
reinforcements of polypropylene. Every Tri-Mer Chemical Tank is Engineered for Access,
Fit and Maximum Flexibility Tri-Mer has more than 42 years experience in the design and manufacture of quality tanks for every
process application. We understand the need for quick, easy access and are specialists in
accommodating space constraints. As part of your tank package, Tri-Mer offers a full line of auxiliary tank equipment: pumps, piping, etc.
We also provide nozzles, gussets, baffles, heating elements, tank agitators and wear strips. Automatic chemical addition, as well as level and temperature indication, can also be supplied
with your tank. See our Polypropylene Plastic Tanks Q&A Page for more information. POLYPROPYLENE TANKS / CO-POLYMER TANKS / STAINLESS STEEL TANKS / ROTO-MOLDED TANKS Have a potential application? Contact Tri-Mer
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1400 Monroe Street • P.O. Box 730 • Owosso, MI 48867; USA
Phone: (989) 723-7838 • Fax: (989) 723-7844
salesdpt@tri-mer.com
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