type 2070 hard seat and 2170 soft seat block & bleed needle valves combine isolating and venting in a single valve, eliminating the need for tubing and fittings. The block valve isolates the downstream process fluids, and the bleed valve exhausts upstream fluids, enabling instruments to be removed without disturbing the permanent piping installation. The ¼” NPT vent plug is located 90° to the left and may be removed and replaced with exhaust piping to direct the fluids to a safe location. Looking for additional options such as packings, stem-tips, and o-ring materials? Please request a quote below.