Bonney Forge HL-11 GATE VALVE3 4-800 Gate Valve

The Bonney Forge HL-11 ¾ in Gate Valve, 800 lb class, is a bolted-bonnet, outside screw and yoke (OS&Y) forged-steel valve designed for reliable isolation with a full-port flow path and a socket-weld inlet paired with a threaded outlet (HL-11-SW/T). It uses an A105N carbon steel body with a CR13 stem, a F6a wedge, and HF trim (A479 410 HF seat; CR13 stem), and features a self-aligning two-piece packing gland, integral backseat, and graphoil (graphite) packing for dependable stem sealing. The design adheres to API 602 and ASME B16.34, with API 598 testing and MSS SP25 marking; end configurations include socket-weld and threaded connections, with butt-weld variants available on related HL-11 models. Rated at 1,975 psi @ 100°F for the 800 lb class (and higher for other classes in the HL-11 family), it operates up to about 100 °F and weighs roughly 5 lb, with a flow coefficient (Cv) around 19 to indicate its throughput capability for typical non-corrosive liquids. This manual valve provides robust, low-maintenance isolation in piping systems where a durable bolted-bonnet valve and straightforward maintenance are essential.