Merchant steel fittings are designed with Dryseal Taper Threads (NPTF) for more critical applications where the sealing compound may fail due to high heat or pressure, NPTF Dryseal threads produce a mechanical seal by the mating and slight crushing of the threads when a wrench is applied to tighten the fittings.
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1.800.561.3164
25 Whaley Avenue
P.O. Box 310
Milverton, Ontario
N0K 1M0 Canada
Boshart Industries LLC
3601 Woodpark Blvd. Charlotte, NC 2820 USA