Unbalanced Heavy Post Guided

21000 Series Heavy Top-Guided Control Valves The 21000 Series features a rugged, heavy top-guided, single-ported unbalanced trim design with noise attenuation and anti-cavitation trim options. Built with versatility in mind, these valves deliver reliable performance across a wide range of demanding process applications, including power, refining, petrochemical, and chlor-alkali services. Key Features Heavy-duty top-guided plug ensures precise alignment under all operating conditions Excellent control performance with multiple Cv reduction options Available in single- and double-stage Lo-dB® / anti-cavitation trim designs Broad application coverage with NACE-compliant material options Specifications Sizes: 3/4” to 8” (20 to 200 mm) Ratings and Connections: Flanged: ANSI 150–2500, UNI-DIN 10–400 Welded: Butt Weld (BW) or Socket Weld (SW) Screwed: NPT, 3/4” to 2” (20 to 50 mm) Body Styles: Globe pattern and angle pattern geometries Body Materials: Carbon steel, stainless steel, chrome-moly and others Actuators: Model 87/88 multi-spring diaphragm Trim Options: Single-seat, top-guided plug; Lo-dB® and anti-cavitation designs available in single, stage double-stage or multi stage. Linear, equal percentage, or modified equal percentage flow charateristic