After many years of extensive research, the Kraissl Company has found a new breakthrough in valve plug sealing technology. We have created an excellent, cost effective solution to assure positive, bubble-tight shut-off of our tapered plug valves. This new "SURE-TITE™" process provides durable, neoprene rubber which is permanently bonded to the metal valve plug. This heavy rubber is finished to match the tapered valve seat. Excellent chemical resistance and wear characteristics render this option very effective in oil, water, and many other fluid process applications. When set up with our standard lifting jack mechanism, the "SURE-TITE™" valve plug completely seals the transfer valve or duplex strainer/filter with simple, "hand-tight" operation. The resilient rubber coating also protects the valve seat for long life in rough service. The "SURE-TITE™" valve plug can be easily replaced in the field, with no other complicated seals, inserts, or parts needed. Existing units can be retrofitted with this new option if desired.
This new feature is available on all our Model 72 AA(F)(H)(SS) series cast iron, steel, and stainless steel transfer valves, as well as our Model 72 and 73 series duplex strainers and filters in cast ferrous and non-ferrous alloys. This rubberized process can be applied to all common valve plug metals. When combined with the inherent, durable design features of our integrally cast, tapered plug valve products, the new "SURE-TITE™" option provides optimum valve operation and superior durability at affordable prices.
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