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Noshok^® 854-MC bleed needle valve is part of the 850 series family. This valve features a patented Delrin non-rotating soft tip stem and a back up metal to metal seal.  It provides a convenient means to relieve process pressures trapped between a shut off valve and the instrument.  All stems for the 850 series are 316 stainless steel and all stem threads are rolled for strength and ease of operation.