Parker’s Sure Torque manway gasket design will improve system performance, simplify assembly and lower your total system cost. The design features an over-molded stainless steel compression limiter that incorporates a single or multiple materials on the gasket assembly to meet a variety of chemical resistance requirements. Manway NARs (Non-Accidental Release) that have plagued the rail industry for more than a decade are eliminated with the Parker design and proper installation practices. The stainless steel compression limiter will allow the bolt retention to remain constant over its seal life, provide a robust controlled compression seal and allow for repeated usage without seal deterioration.
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