Viscometro a imbuto Marsh

Marsh Funnel Viscometer is a professional measurement funnel designed for rapid and repeatable viscosity evaluation of cement-based grouts, soil improvement slurries, and drilling fluids through efflux time. The polished stainless steel (or heavy-duty polymer) body, standard-geometry calibrated orifice (≈3/16 in ≈ 4.7 mm), and leak-proof valve maintain laminar flow. A rigid three-legged stand with a bubble-level vial ensures precise leveling in every setup. The large-capacity funnel, with clear fill marks indicating the starting level, speeds up sample preparation. A 946 mL (1 qt) receiving container, combined with a high-resolution digital or analog stopwatch, minimizes operator dependency. Drip-preventing lip, quick-open/close control, and low-friction gaskets reduce start-up delay and leakage errors. Smooth internal surfaces and tool-free removable orifice and valve assemblies shorten cleaning time, while corrosion-resistant materials ensure long service life under alkaline binders and field conditions. Optional accessories include a fine-mesh adapter, temperature verification thermometer, and transport case to enhance efficiency in intensive lab or field programs. The apparatus design is developed in accordance with international expectations for flow determination using the funnel method. It provides dimensional accuracy and repeatable flow for common Marsh funnel procedures in drilling and tunneling (e.g., API-style 1 quart efflux time) and clay-based construction slurries. As a result, mixture design comparisons, production quality control, and field acceptance tests yield standard-compliant, comparable, and reportable results. The durable body, user-friendly leveling and timing mechanisms, and low maintenance requirements make the Marsh Funnel Viscometer a fast, economical, and reliable solution for monitoring grout and slurry viscosity.