Through Conduit Gate Valve

The ZQV Through-Conduit Gate Valve features a slab gate with a bore that aligns exactly with the pipeline when open, leaving an uninterrupted, pig-passable flow path with no cavity to trap solids or wax. Designed primarily for on/off isolation on oil and gas transmission pipelines, its self-relieving or double-block-and-bleed seats provide positive sealing on both upstream and downstream faces. The rugged forged or cast body and wiper-action seats keep sealing surfaces clean, ensuring tight shut-off and long service life in demanding hydrocarbon pipeline duty.