Three-piece full-connection ball valve — model Q11F16P Key product details Model: Q11F16P, three-part full-connection (full-bore) ball valve with internal threads. Available sizes: DN15, DN20, DN25, DN32, DN40 (corresponding commonly to 1/2", 3/4", 1" and larger nominal sizes). Material options: standard SS201; also available in SS304 or SS316 stainless steel. This listing: 1 piece, size 3/4" made of SS304 stainless steel. Why this valve solves common problems Low flow loss: Full-connection (full-bore) design keeps internal flow area large, minimizing pressure drop and reducing energy loss in pumps or systems. Durable and corrosion-resistant: Stainless steel construction (SS201 / SS304 / SS316 options) protects against rust and extends service life in water, industrial, and outdoor environments. Easy maintenance: Three-piece body allows quick disassembly for inspection, seat replacement, or cleaning without cutting the pipeline into multiple sections. Simple installation: Internal (female) threaded connections fit standard threaded pipe fittings for straightforward assembly and replacement. Primary functions and performance On/off fluid control with quick quarter-turn operation. Reliable shutoff and repeatable performance suited to liquid and many light chemical services. Versatile across a range of piping systems due to multiple size and material options. Practical applications Residential and commercial plumbing: shutoff and isolation in water supply lines where low head loss and corrosion resistance are needed. Process and light industrial systems: inline isolation and maintenance-friendly valves in chemical processing, food, or manufacturing utilities (select SS304 or SS316 for improved resistance). HVAC, irrigation, or utility piping: reliable isolation for maintenance and system balancing. What you receive One (1) Q11F16P three-piece full-connection ball valve, 3/4" internal thread, constructed from SS304 stainless steel (other sizes and material grades available on request). Notes for selection Choose the material grade (SS201, SS304, SS316) based on corrosion resistance needs and application environment. Confirm the required nominal size (DN15–DN40 / 1/2"–1" and larger) and threaded connection compatibility with your existing piping before installation.